Showing posts with label weather. Show all posts
Showing posts with label weather. Show all posts

Tuesday, 19 October 2010

End of Cannas in England


Temperatures have been falling across Britain as the country prepares for a cold snap coming in from the Arctic.

Winds are becoming increasingly northerly with temperatures expected to fall to below freezing overnight across large swathes of the country.

Unseasonally cold temperatures will be accompanied by wintry showers with hail, sleet and even snow on high ground.

Temperatures, which reached a mild 16C (61F) on Monday, are due to fall a few degrees everywhere during the day.

This means the end of the Canna growing season, and the collections plants have all been making a huge effort in the last few weeks to try and produce seed before the winter frost, but their efforts have been in vain this year.

Once again, we have had a very poor year for growing Canna, the early months being almost back to front, with high sun early on and then poor light and much rain when we should have been enjoying a summer.

The whole collection has hardly produced any seed again this year, the best indicator of how the crop has progressed during the year.

We will let the frost stop the growth and over a period of about a month we will move nearly 300 Cannas indoors for winter protection. Most will be planted in the soil inside a poly-tunnel, where the addition of a layer or two of fleece covering will protect these tropical plants from our English winter. Others will be taken into a polytunnel in their pots and will remain in the pots over the winter, again protected by fleece and with thermostatically controlled heaters.

Whether planted in the soil or left in pots the plants will still require some attention, weeding and ensuring that the soil does not dry out totally, and a fungicide spray occasionally to ensure that damp related problems do not occur.

Canna lovers who have taken photos over the summer are invited to send me copies and I will be pleased to publish them on the blog, and let us all try and bring back shared memories of the summer!

Tuesday, 27 July 2010

Hot summer to continue

Britain's long hot summer is set to carry on. There is no sign of downpours on the horizon, and it will stay mainly dry right the way through to autumn, experts said last night.
They forecast some sun for all parts of the UK this week – great news for families starting their summer holidays and for beachgoers.
Temperatures will reach 26C in parts of the South-east by mid-week, and the low 20s everywhere else, according to the Met Office. Long-range forecasts predict just six or seven days of rain for the entire month of August.
The difference in our Cannas this year is a joy to behold. We see only healthy, shining foliage and flowers that have the strength to open and show-off. This is how it used to be before we had that long series of poor summers.

Sunday, 4 July 2010

A drought on its way?


Desparate water-saving measures, on a level not seen since the 1976 drought, may be introduced as forecasters predict the lowest rainfall in 80 years.
The first six months of this year have been the driest since 1929 and experts warn next month will also see rainfall 25 per cent below average, forcing families to ration their water.
Even October and December are due to be dry, which is expected to cause problems in Yorkshire, East Anglia and Plymouth.
Weather expert Jonathan Powell said the North-west was already having trouble with reservoir levels – like the one at Haweswater, Cumbria, above.
He added: “Our long-range computer programme shows a distinct possibility that this year will be the driest on record."
“There could be widespread drought orders and hosepipe bans, with measures used in 1976 repeated, such as people encouraged to share bath water and to not flush the toilet unless they really need to. The worst-case scenario would be standpipes in the street.”

Friday, 14 May 2010

Weather Watch: Is this the breakthrough?


Warm weather is set to make a surprise return to many parts of Britain this weekend as the country finally shakes off more than two weeks of Arctic winds. This looks like the moment to start moving the Cannas outside to start growing in more natural conditions than in the poly-tunnels, with the ever-present threat of red spider mite, and aphids.
Waiting for last and this years seedlings to appear and be fitted to the automatic feeding system at Claines Canna
Temperatures are expected to rise significantly over Saturday and Sunday, peaking at 68F (20C) in London and the south east on Monday. The rest of the country will also bask in sunshine with temperatures in the early and mid sixties widely expected right through until Tuesday.
Bitterly cold winds from the north in recent days have brought unusually low temperatures for this time time of year. Last weekend parts of Scotland saw overnight temperatures plummet as low as 21.2F (-6C) when the average low May is 35.6F (2C).
Day time highs, meanwhile, have barely reached 50F (10C) in many parts of England and Wales during the past week. It had been thought the cold weather would last until well into next week.
But now Met Office forecasters predict that a shift in wind direction this weekend, with warmer breezes coming from the Atlantic and south west, will bring warmer temperatures.

Tuesday, 11 May 2010

Weather watch: Late frost to kill spring

Gardeners are being warned to prepare for up to a week of unusually late frosts which threaten to kill off spring blooms.
It could spell an end to what horticulturalists had been hailing as a vintage spring after the effects of the winter “big freeze” caused many plants to burst into flower simultaneously.
Experts also warned gardening enthusiasts to delay planting out tomatoes and other delicate fruit and vegetables, which would normally be safe to plant out in May, this year.
With overnight temperatures set to fall as low as 26F (-3C) in some parts of Scotland over the next few days, even milder areas in the south are being warned to prepare for over overnight lows close to freezing.
Daytime temperatures will also be unseasonably cold, with highs of between 50F (10C) and 59F (15C) expected, and the wintry conditions could last into next week, the Met Office warned.
Alan Power head gardener at the National Trust’s Stourhead gardens in Wiltshire said that it was the latest warning of widespread frost in recent memory.
“It is a worry,” he said. “Usually you can relax once April has gone out, a lot of people will have prepared pots and hanging baskets, you just don't expect to have to protect them.”
With spring arriving up to four weeks later than usual this year because of the cold winter, visitors to the gardens have been treated to the rare sight of camellias, magnolias and rhododendrons all in flower at once.
But he warned: “It will definitely shorten it, mother nature is going to steal back again the four weeks we had stolen from her.”
Andy Bodenham, a Met Office forecaster, said: “We are going to see temperatures down to just a few degrees above freezing in many areas, and certainly cold enough to warrant protecting delicate plants.”

Our comment: We are pleased that we have kept the Cannas growing in the poly-tunnels, until this blast of cold is over and done with. We will start transplanting next weekend, when we can see a bright future ahead of us.

Friday, 7 May 2010

Weather Watch: Is this the breakthrough?

Todays weather forecast shows that in about 10 days time the night-time temperatures will start rising. That is mid-May, and we are hoping that will signify that the last of the frost are over and we can start to transplant the Canna Collection outside again.

Roll on that great day, we have many other uses for the polytunnels over the summer and waiting for the weather change is holding up production!

Wednesday, 5 May 2010

Weather watch: from bad to worse


Britain is bracing itself for a week of frosty mornings as temperatures plummet following a wash-out Bank Holiday weekend. 
Parts of the UK dipped below freezing overnight as May began with a spell of unseasonal cold weather. And forecasters warn temperatures will struggle to just get into double figures this week. The chilly blast comes after heavy showers hit most of the country over the Bank Holiday. Some areas saw as much as half of one month’s rainfall over the weekend with 1.6 inches falling in Chipping Campden in the Cotswolds, fairly local to us in Worcester. 
Charles Powell, Met Office forecaster, said: “It’s been disappointing this weekend. We’ve been spoilt through a very dry and sunny April. 
At Claines Canna we are pleased that we did not presume that the bad weather was over and have kept the Canna Collection snug and warm in the poly-tunnels.

Friday, 30 April 2010

Weather watch: still uncertain

The weather forecast has raised the temperatures slightly of the last five days predicted, compared with the prediction yesterday, but there is still no way of knowing where we go after that. Will it dropor go up?

Until we have that answer we will leave the Cannas growing in the warmth of the poly-tunnels.

Thursday, 29 April 2010

Weather watch: still uncertain

Still waiting for the last of the frosts before moving the Claines Canna Collection outside into the garden from the protection of the poly-tunnels. 

While the day temperatures are looking reasonable, although not very summer-like, the night-time temperatures are still too low. The nights following the end of the graph (4C) could suddenly dive to freezing, we cannot be certain. And so until we see the night-time temperatures rising we will leave the Cannas protected in their snug winter quarters, where many have now started to sprout with new growths.

Sunday, 25 April 2010

Starting the weather watch

Now is the time of the year when we start to anxiously follow the weather forecasts, looking for that weather break when we can feel confident that Jack Frost has stopped his nightly visits. Until the frost is over we cannot plant our Cannas outdoors.

So far, in Central England, it is looking promising with the 10 day forecast showing no frost, but worryingly the early days of May show both day and night temperatures dropping again, and that could continue dipping further and produce overnight frost.

So, for the immediate future we are being patient and resisting the temptation to start moving our Cannas outdoors.

Monday, 11 January 2010

Coldest winter in Britain




Bitter north-east winds compounded the misery for icy Britain this weekend as forecasters predicted the Arctic weather could last another 10 days, making this the coldest winter the country has endured since the notorious winter of 1962/3.

The sub-zero conditions, which have virtually brought the country to a halt, will certainly have had an affect on our Canna collection.
I will not be surprised if we have lost 50% of the collection to frost, the recording thermometer in the largest of the polytunnels showed the temperature had dropped overnight to -15C, and although the cannas are in the soil, covered by fleece, the temperature must have affected the top 5-10cm of soil and destroyed the frost tender rhizomes.
We will let you know what the damages are when the temperatures start rising in March and we would expect to see new shoots emerging.

Tuesday, 3 November 2009

Meat is detroying the planet



Climate change emissions from meat production are far higher than currently estimated, according to a controversial new study that will fuel the debate on whether people should eat fewer animal products to help the environment.
In a paper published by a respected US thinktank, the Worldwatch Institute, two World Bank environmental advisers claim that instead of 18 per cent of global emissions being caused by meat, the true figure is 51 per cent.
They claim that United Nation's figures have severely underestimated the greenhouse gases caused by tens of billions of cattle, sheep, pigs, poultry and other animals in three main areas: methane, land use and respiration.
Their findings – which are likely to prompt fierce debate among academics – come amid increasing from climate change experts calls for people to eat less meat.
In the 19-page report, Robert Goodland, a former lead environmental adviser to the World Bank, and Jeff Anhang, a current adviser, suggest that domesticated animals cause 32 billion tons of carbon dioxide equivalent (CO2e), more than the combined impact of industry and energy. The accepted figure is 18 per cent, taken from a landmark UN report in 2006, Livestock's Long Shadow.
"If this argument is right," write Goodland and Anhang, "it implies that replacing livestock products with better alternatives would be the best strategy for reversing climate change.
"In fact, this approach would have far more rapid effects on greenhouse gas emissions and their atmospheric concentrations than actions to replace fossil fuels with renewable energy."
Their call to move to meat substitutes accords with the views of the chairman of the UN's Intergovernmental Panel on Climate Change, Dr Rajendra Pachauri, who has described eating less meat as "the most attractive opportunity" for making immediate changes to climate change.
Lord Stern of Brentford, author of the 2006 review into the economic consequences of global warming, added his name to the call last week, telling a newspaper interviewer: "Meat is a wasteful use of water and creates a lot of greenhouse gases. It puts enormous pressure on the world's resources."
Scientists are concerned about livestock's exhalation of methane, a potent greenhouse gas. Cows and other ruminants emit 37 per cent of the world's methane. A study by Nasa scientists published in Science on Friday found that methane has significantly more effect on climate change than previously thought: 33 times more than carbon dioxide, compared with a previous factor of 25.


Monday, 2 November 2009

Indian summer over



Britain was hit by storms yesterday as almost a month's worth of rain fell in just one day, putting an end to the Indian summer.


In Worcester we enjoyed temperatures as high as 64F (18C) over the past week. But winds of up to 70mph and heavy downpours hit the county overnight as a deep low pressure tracked across the UK.
Did we worry? No, all the Cannas that we are keeping are snug in our poly tunnels, watered and fed, and the next thing will be frosts that destroy the foliage and flowers that are still working away in the tunnels. There is no prediction of frosts in the next 10 days, so we can concentrate on other gardening activities in the next week or so.

Tuesday, 27 October 2009

Season of mists and mellow fruitfullness



It's meant to be the season of mists and mellow fruitfulness. We have often had the first frosts by now in previous years, and are frantically digging up our Cannas to move into the protection of the polytunnels.
But this week, autumn has been transformed into the season of dazzling sunshine and temperatures soaring into the 70s. 
The mini heatwave is set to last until Friday night in what the Met Office describe as an 'official Indian Summer'.
Forecasters predict that temperatures will peak at 70F (21C) in the South-East and Midlands on Thursday, compared to the usual highs of 52F (11C) during the last week of October.
It is excellent news for us as we have started moving the Canna collection indoors at a leisurely pace, with a target of having the whole of the collection moved by the end of the week.
This season we are not attempting to over-winter the species plants. We have decided to grow them next season just from seed, and to grow them indoors, as there is no pleasure from growing them in the current English Midlands climate, where they are deprived of the minimum amount of light they need to flourish.

Sunday, 20 September 2009

Indian summer to continue



BRITAIN can look forward to basking in yet more glorious sunshine as our Indian summer looks set to carry on into next month.

But let’s hope the Met Office has got its forecast right this time after a washout summer. Forecasters there faced a storm of criticism for a long range forecast earlier this year of a “barbecue summer” that never happened.

The Met Office also says that the rest of this month will see a north-south split, with the south staying relatively dry and the north becoming wetter.

Forecasters Positive Weather Solutions, which uses comparisons between current trends and past weather patterns, agrees that the rest of September will be “dry with sunshine”. And it says in the south this should continue into October.

Its forecaster Jonathan Powell said: “Bar the odd rainy day, the remainder of September will be dry with lengthy periods of sunshine. “For the south of the UK, October will start the same way – dry, sunny, but rather chilly by night.”

Despite what seemed like washout weather, it was revealed yesterday that parts of the UK have had their driest summer since 2000, with Kent getting 77 per cent of its normal rainfall between June and August.

By mid-September, southern England and East Anglia had just 24 per cent of the rainfall expected for the whole month.

The only bad news there as far as Cannas are concerned is the chilly nights, so it's time to start watching out for night-time temperatures again, and to start clearing the last of the food crops out of the poly-tunnels. There is still courgettes, potatoes, spinach, beetroot, carrots, water melons, tomatoes, chilli's and other peppers to get picked, lifted and composted before fertilizing the soil again and rotavating ready for when the Cannas need to start their hibernation.

Thursday, 10 September 2009

At last some English weather!

Now climate change, like starving children, is generally a cause that the British prefer to empathise with when it happens on foreign, rather than domestic, soil. So we lament the loss of coral reefs; the rising sea level in the South Pacific; and we watched on TV as California burned and Australia experienced its warmest August, a record-breaking winter heat wave. But do we really have any idea what is happening in the most beautiful remote bits of our own backyard?

The lesson of this summer is that we are ignoring what is happening under our noses. If this summer is not an aberration, then it would appear that western Britain is under the cosh too; a kind of stealthy, watery Armageddon.

And if this is indeed the future, then the issue is more urgent than any of us realised. Many of us, inhabitants on both sides of the wet/dry divide, who are by instinct rather non-warmist, must now accept that the Atlantic lows are not only more frequent but have permanently shifted south. Certainly there seems an acceptance among scientists that the number of Atlantic hurricanes has doubled over the past century. One study, from the National Centre for Atmospheric Research in Colorado, concluded that warmer sea temperatures and altered wind patterns associated with climate change are fuelling the increase. And sea temperatures on Britain’s West Coast are indubitably rising.

If all this is correct, British delegates at the Copenhagen climate change summit in December should consider the pressing implications for tourism, agriculture, food security, health and public spending in Britain.

Take roads, for instance. In Scotland alone, one fifth of the main network has been identified as at risk of landslides, with extreme storm rainfall predicted to increase by between 10 and 30 per cent by the 2080s. On Monday, in Argyll, part of a mountainside supersaturated with rain collapsed on to a trunk road, effectively cutting off a vast swath of the county. Exactly the same thing happened, on the same stretch of road, in 2004 and 2007. It will take diggers weeks, possibly months, to stabilise the hillside and clear the road. The lesson: climate change is going to be hugely expensive, especially in rural and remote areas.

Today, we’re at the point where, scarily, the land simply can’t take much more rain. There is the sense that, as Scotty cried in Star Trek: “The engines cannae take it, captain.” Everywhere you go, there is the stink of rot. Timbers are swollen; doors stick; the ground, so engorged it can absorb no more, heaves beneath your feet. All we need is Harrison Ford to appear and we would have confirmation that we are trapped on the set of Blade Runner. As nothing else could, life in the West this summer has fulfilled Ridley Scott’s apocalyptic vision of climate change: perpetual rain, perpetual darkness.

Biblical portents abound. Toads claw at night at the back door, looking, I fear, for somewhere dry to go. Small creatures are drowning and dying. Those that can fly away have done so: the eaves are empty, the normally prolific swallows having disappeared weeks before their normal time. Fruit is dropping, half formed and rotting, on to lawns too wet to walk across, let alone cut.

Out of pity, one avoids intruding on the private grief of those who have to make their living outside. Farming is devastated. With dairy cows already housed inside, two months earlier than usual, and thousands of pounds worth of hay and grain lying rotting in sodden fields — unreachable, even if it stopped raining, by mechanical means — many farmers are desperate. In Cumbria the ground will be too soft to bear the weight of a combine harvester any time between now and Christmas.

We have cultivated a mordant pessimism. “Not raining shock” we say, peering from the window in the morning. We know by lunchtime it will have started again. We disembark from flights to London feeling as if we have travelled a thousand miles to a different continent: one where it does not rain and people wear summer clothes.

We in the west, at Worcester, seem to have been invisible to the rest of the UK. This is the 3rd summer in a row where the sun has been almost absent, in an area which I have always thought of as something of a sun trap. If it's not raining, then dark gloomy clouds hang perpetually overhead. Even my greenhouse tomatos are suffering.

In the last year, in the same way that you can look at the rings in the trunk of a tree and see the weather conditions over each year for hundreds of years, we can look at a stem of Cannas and by examing each leaf we know what the weather conditions have been over the months. We started out with some good foliage in May and early June, but then the sun vanished and we went for months with not enough light in many cases to allow our Cannas to even unfold their new leaves, so we have had to assist this most basic function. The energy to unfold Canna leaves comes only from sunlight.

Foliage from that period is a disaster, we have some leaves that never achieved even half of their photosynthesis capability and their foliage varies from pale yellow overall to striped green and various shades of yellow. In some cases the incessant rains have washed away much of the wax cuticle that protects the leaf from rain. I have very rarely seen this happen before in the twenty years that I have grown Cannas.

So far, in the second week of September, we have collected seed from 6 plants out of 230 plants! Why such a pathetically low number? Pollen only stays fertile for a few hours and rain quickly dissolves its potential.  We have had our potential seeds washed away by rain. This is not a figment of imagination, it is a hard fact!

Of course, if the doom mongers took a look at our Canna collection they would immediately condemn it as being totally devastated by virus, and the more inexperienced would come up with such trite statements as "if it looks like virus, then it's virus". In the west of England we don't need friends like this. We have enough problems to contend with, without having to contend with self-opinionated amateurs with no scientific knowledge.

We need another year like 2006 when we can get good growth from our Cannas and establish which have virus and which are stressed by abnormal weather conditions. In the meantime we can only keep growing and keeping the plants we are sure are virus-free separate from the rest of the collection, and keeping the virus suspects totally isolated from the rest. 

Ironically, some of the suspects have come from the homes of those who consider they have totally virus free collections. Once these specimens leave their glass house environments and hit the west country weather conditions they betray their inherent problems. Those problems are not necessarily virus, just the problems of sub-tropical plants trying to exist in an ever-more disturbed temperate-critical climate.

Wednesday, 2 September 2009

Forecasters defend their prediction

Forecasters have defended their prediction of a 'barbecue summer' by claiming they got the temperature right - just not the amount of rain!

The Met Office has said Britain has basked in three months of above-average temperatures, but the warm weather has been spoiled by the wettest July for 100 years.

Figures show the country's average temperature over the last three months has been 14.8C - 0.7C above the normal.

August was the hottest month for many of us, with England 1C warmer than normal.

But the rain spoiled many people's summers, and the Met Office was heavily criticised for its 'barbecue summer' prediction.

Forecasters say they did not get it entirely wrong, but have now admitted they they find it difficult to accurately predict the amount of rain that will fall in summer. In April, they told us the summer would be hotter than the past two years and temperatures would reach 30C - and they were right.

However, warmer temperatures don't create growth in plants, that is done by light, and the sunlight was continuously blocked by rain clouds causing our Cannas to have as bad a year as the two previous growing years.

This is the third consecutive year when we have suffered these high rain levels, at least this year we have not suffered flooding! The wild species plants have suffered worse than I have ever seen them, and most of the foliage is yellow due to lack of light. These all come directly from tropical and sub-tropical climates and cannot cope with the small amount of light reaching them in what now appears to be the new typical British summer. There is no point in growing these plants outdoors, and we have no room in the poly tunnels during the summer months for anything that we cannot eat! So, reluctantly, the species will be dropped next year.

We first fell in love with Cannas nearly 20 years ago and started to collect them in ever increasing numbers, but if they had looked like ours currently do, then we would not have bothered. Hopefully next year will provide enough sunlight to provide us with a good growing year.

Friday, 7 August 2009

Sunshine returns?

Last month was the wettest July in England and Wales for a century, with 141.7mm (5.58in) of rainfall, more than double the average. This comes after the Met Office had forecast a barbecue summer for us!

The Met Office is now predicting warmer weather for the weekend and well into next week, and possibly beyond. Temperatures will rise above average, into the mid to high 20s celsius (mid-70s to mid-80s fahrenheit), and it will be warm at night.

How sunny it will be remains uncertain. Helen Chivers, of the Met Office, said: “Sunshine is difficult to work out at the moment because the high pressure is not quite strong enough to keep out moisture from the Atlantic, which means there will be clouds, with the chance of a few isolated showers and drizzle at times.”

What does it mean for us at Claines Canna? Perhaps we could now start grooming the collection, dead-heading and removing dodgy foliage. After this evil summer that will mean removing a lot of leaves! So how bad a year has it been for us so far? Well, a neighbour stated that they go on holiday at the same time each year, and he had noted on his return that our Canna are the smallest he can ever remember at this time of the year, so we still have lots of growth to make up and maybe only half of the collection have flowered so far. As yet, there has been no seed to collect, also unheard of in the last fifteen years.

If we can get two weeks of good sunshine then there is a chance that we can turn the year around, but time is starting to run out.

Friday, 31 July 2009

It's all flawed

Wildly inaccurate forecasts by the UK Met Office for this summer have caused a total rethink on our part at Claines Canna.

The Met Office is one of the most devout peddlers of the Intergovernmental Panel on Climate Change (IPCC) man-made climate change theory (exaggerated by the UK Stern Report) which predicted 2-5 degrees Celsius rises in temperatures for 40 to 90 years ahead. However, Nicholas Stern in the government bible drops reference to the 90 years and sticks with the 40 years, presumably so that it all seems more urgent and desperate.

The truth is that it is not happening and despite the largest rises in man-made carbon dioxide emissions over the past twenty years; here we are now in 2009 with no warming for ten years.

Even the Met Office has had to confess that average global temperature has not risen for a decade, despite its subscribing to the IPCC predictions that runaway global warming would be upon us at the start of the new millennium.

The IPCC, an expensive international bureaucracy, established to promote the man-made (anthropogenic) climate change (global warming) theory runs multi-million dollar models to try to predict the temperatures in the future. These have been fatally flawed by independent climatologists and atmospheric physicists, yet still a large gullible section of the public swallows all the hype and the government propaganda ably aided by local councils and goes on to peddle the myth.

These are sad times when the Met Office, the citadel of flawed reasoning and the ‘King Canute’ theory, cannot even predict with any accuracy the temperatures for this summer in this country.

Wednesday, 29 July 2009

What barbecue?

They told us to get the barbecues ready and prepare for a scorching summer. So far, no barby!

Experts predicted temperatures would top 86F (30C) while rainfall was likely to be “near or below average”.

But the latest Met Office figures released yesterday show that July has been a washout – with almost a month’s rain in the first two weeks alone.

The only glimmer of comfort was the fact that temperatures across the country have still been higher than an average summer. The average UK rainfall for the first fortnight was 56.6mm (2.2in) – about 81 per cent of the normal July level.

But while most of us probably feel like we have experienced the worst summer for years, the rainfall figures were much lower than in the past two years.

However, this is still not Canna growing weather, and the Claines collection currently stands forlornly with every single plant having some good and some bad foliage. Leaves that unfolded when there was sunshine are mostly alright, but those on the same plant that unfurled during days with cloud and poor light reflect that fact. This is light stress, which looks like CYMV virus. The mosaic virus types is always the cause of this pattern in the leaf, in my opinion, as lack of light does not create a mosaic pattern in any any plants that I have experienced.

The worst sufferers are the wild species, grown from seed this year and all a vibrant green when planted outdoors in late May. They are now, almost without exception, looking yellow coloured with holes and tattered edges where the weather has meant little photosynthesis has taken place and the extreme rain has washed away the powder that protects the leaf against normal volumes of rain.