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Albizia Julibrissin Rosea flowering in England ?
Does anyone know of this type of small (Korean origin) tree flowering
out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A greenhouse environment may also be unsuited as peak daily temperature over 40C seem to cause rapid death to most of the above ground growth. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Anthony ( 30Km east of London ) |
In article ,
Anthony Stokes wrote: Does anyone know of this type of small (Korean origin) tree flowering out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? Dunno. Mine was grown from seed and is only 9" high :-) It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A little better than that with me. However, I lost my non-rosea Albitzia (bought as a plant) during a wet winter. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Think polytunnels. There are a lot of plants that are fairly easy to grow with only minor control of the climate. They are sold in garden centres, look as if they would thrive, but - surprise, surprise! - they don't when planted out. Regards, Nick Maclaren. |
"Anthony Stokes" wrote in message ... Does anyone know of this type of small (Korean origin) tree flowering out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A greenhouse environment may also be unsuited as peak daily temperature over 40C seem to cause rapid death to most of the above ground growth. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Anthony ( 30Km east of London ) I wouldn't bet on it! look at the number of date and coconut palms sold each year. My Albizia is still small (I grew it from seed) after 15 years it has just reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leave are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. -- Charlie, gardening in Cornwall. http://www.roselandhouse.co.uk Holders of National Plant Collection of Clematis viticella (cvs) |
On 11/8/05 9:01, in article , "Nick
Maclaren" wrote: In article , Anthony Stokes wrote: Does anyone know of this type of small (Korean origin) tree flowering out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? Dunno. Mine was grown from seed and is only 9" high :-) It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A little better than that with me. However, I lost my non-rosea Albitzia (bought as a plant) during a wet winter. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Think polytunnels. There are a lot of plants that are fairly easy to grow with only minor control of the climate. They are sold in garden centres, look as if they would thrive, but - surprise, surprise! - they don't when planted out. They will survive here if we don't get hard frosts but I don't think they ever attain their real glory, no. -- Sacha www.hillhousenursery.co.uk South Devon (remove the weeds to email me) |
In article , Sacha writes: | | They will survive here if we don't get hard frosts but I don't think they | ever attain their real glory, no. Mine died without a significant frost, almost certainly due to root-rot in a very wet winter. Regards, Nick Maclaren. |
On 11/8/05 11:01, in article , "Nick
Maclaren" wrote: In article , Sacha writes: | | They will survive here if we don't get hard frosts but I don't think they | ever attain their real glory, no. Mine died without a significant frost, almost certainly due to root-rot in a very wet winter. Regards, Nick Maclaren. Very probably. Some friends of mine had one in France, about an hour from Lyons. They had one very snowy winter and their tree died after that. -- Sacha (remove the weeds for email) |
On 11/8/05 9:05, in article ,
"Charlie Pridham" wrote: "Anthony Stokes" wrote in message ... Does anyone know of this type of small (Korean origin) tree flowering out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A greenhouse environment may also be unsuited as peak daily temperature over 40C seem to cause rapid death to most of the above ground growth. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Anthony ( 30Km east of London ) I wouldn't bet on it! look at the number of date and coconut palms sold each year. My Albizia is still small (I grew it from seed) after 15 years it has just reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leave are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. Butting in to say that we will see you on Saturday, Charlie and Ray says please don't forget the P. antioquensis!! Clematis Day at Hestercombe everyone! -- Sacha www.hillhousenursery.co.uk South Devon (remove the weeds to email me) |
My Albizia is still small (I grew it from seed) after 15 years it has just
reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leaves are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. I think that's 12 feet not 12 inches you mean, as my greenhouse albizia has grown more than 12" ( inches) since June this year. The only flowering one I've seen is in the walled garden of the RHS at Wisley. It had an abundance of pink scented flowers during August last year. So far as I can see it lives in the same spot of the walled garden all year round and doesn't suffer badly from branches dying off in the winter. My seven foot high out-of-doors specimen seems very prone to the higher leaves turning yellow and falling off in mid summer; although the soil is generally kept moist. Maybe some trace nutrient is in short supply. Anthony |
The message from "Anthony Stokes" contains these words: My Albizia is still small (I grew it from seed) after 15 years it has just reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leaves are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. I think that's 12 feet not 12 inches you mean, as my greenhouse albizia has grown more than 12" ( inches) since June this year. The only flowering one I've seen is in the walled garden of the RHS at Wisley. It had an abundance of pink scented flowers during August last year. So far as I can see it lives in the same spot of the walled garden all year round and doesn't suffer badly from branches dying off in the winter. My seven foot high out-of-doors specimen seems very prone to the higher leaves turning yellow and falling off in mid summer; although the soil is generally kept moist. Maybe some trace nutrient is in short supply. Mine lives in a pot in the greenhouse in winter and comes out for the summer. It has flowered for the last two years. It does tend to lose its lower leaves so has become a little leggy but I put that down to less than perfect care. I simply added Osmocote to the compost when I potted it and try to stop it drying out too much. It's about five feet tall.. Janet G |
"Sacha" wrote in message .uk... On 11/8/05 9:05, in article , "Charlie Pridham" wrote: "Anthony Stokes" wrote in message ... Does anyone know of this type of small (Korean origin) tree flowering out-of-doors in England ? If so, at what age does it start to show flowers in our summertime ? It seems to be quite tricky to get success with. The tree doesn't seem to mind cold and damp winters in the garden, but is very reluctant to grow any leaves at all until daily temperature is peaking well above 20C ( ie very late May or June ). A greenhouse environment may also be unsuited as peak daily temperature over 40C seem to cause rapid death to most of the above ground growth. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? Anthony ( 30Km east of London ) I wouldn't bet on it! look at the number of date and coconut palms sold each year. My Albizia is still small (I grew it from seed) after 15 years it has just reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leave are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. Butting in to say that we will see you on Saturday, Charlie and Ray says please don't forget the P. antioquensis!! Clematis Day at Hestercombe everyone! -- Sacha www.hillhousenursery.co.uk South Devon (remove the weeds to email me) Its in the van! -- Charlie, gardening in Cornwall. http://www.roselandhouse.co.uk Holders of National Plant Collection of Clematis viticella (cvs) |
"Anthony Stokes" wrote in message ... My Albizia is still small (I grew it from seed) after 15 years it has just reach 12" it is very late into growth and puts on some extension most of which is lost in winter. Leaves are pretty though and it seems hardy enough just slow, so buying an imported large one may be the way to go. I think that's 12 feet not 12 inches you mean, as my greenhouse albizia has grown more than 12" ( inches) since June this year. The only flowering one I've seen is in the walled garden of the RHS at Wisley. It had an abundance of pink scented flowers during August last year. So far as I can see it lives in the same spot of the walled garden all year round and doesn't suffer badly from branches dying off in the winter. My seven foot high out-of-doors specimen seems very prone to the higher leaves turning yellow and falling off in mid summer; although the soil is generally kept moist. Maybe some trace nutrient is in short supply. Anthony No sadly I meant inches, I do grow a greenhouse one which used to be Albizia which grows like a weed but the julibrissin is desperately slow although it is in a very dry place. -- Charlie, gardening in Cornwall. http://www.roselandhouse.co.uk Holders of National Plant Collection of Clematis viticella (cvs) |
"Dave Poole" wrote in message The natural range of Albizia julibrissin is inland-continental, from northern Turkey in the west, right through Iran and as far east as China. etc Thankyou Dave for that much appreciated specialist information. Very useful. I will try to raise the pH of the soil that my Albizia Julibrissin Rosea are struggling to adapt themselves to. Anthony |
"Dave Poole" wrote The natural range of Albizia julibrissin is inland-continental, from northern Turkey in the west, right through Iran and as far east as China. Typically, temperatures are searingly hot in summer, but it is bitterly cold and dry in winter. I'm not aware of it being a native of Korea but the medicinal qualities of the bark, roots and leaves are highly valued by sino-asiatic races, causing it to be planted well outside of its range. Therefore it has naturalised in many places. It is extremely cold tolerant when dormant given the right growing conditions, but also requires high summer heat to thrive. Despite its delicate, tropical appearance, it withstands drought remarkably well. Full sun at all times is essential if the wood is to ripen sufficiently for flowering. Every good flowering specimen that I've seen has been on dry, moderately alkaline soils with no additional watering or fertilising. In fact neutral to slightly acidic, humus rich soils encourage infection by fusarium disease. This is a soil-borne fungus that enters via the roots and blocks the sap-conducting vessels, causing the leaves to yellow and die suddenly. Young plants are especially prone - often losing upper branches and in some case the entire plant above ground can be killed. As happens with wilt disease in Clematis, there is a possibility of regeneration from the rootstock, but the infection often recurs. In common with many plants native to regions where the climate is typically continental, growth only resumes when temperatures rise sharply. As a result, Albizia will often be the last of the trees to leaf-out in the UK. This is beneficial in terms of avoiding damage by sudden, late frosts, but of course at our latitudes it also leads to a short growing season. If the ensuing summer is 'indifferent', flowering will be poor or non-existent. The best spot to grow Albizia julibrissin is close to a sunny, south facing wall, where it is naturally drier and benefits from reflected heat. Unless the soil is especially impoverished, I would not apply any fertilisers, humus or mulch. Nor would I give additional watering once the plant has become fully established - regardless of the weather. I'm almost tempted to suggest that neglect is the best treatment if planted in the right spot! Anthony Stokes wrote: A greenhouse environment may also be unsuited as peak daily temperature over 40C seem to cause rapid death to most of the above ground growth. It is the relative humidity and accompanying turgid atmosphere that encourages this - peak temps of 40C or more in 'open air' are very much to its liking. The temptation to keep it evenly moist in such heat (admittedly a seeming necessity for pot grown specimens) is likely to encourage fusarium, which causes the sudden die-back in mid-growth. There seem to be many of these trees available in local garden centres ( typically at 5 - 10 feet high, in pots ) ~ so presumably someone somewhere is having success with them in England ? I wonder how many of these are being sold with the correct cultural advice. Thanks again Dave, I now know the very spot. A friend has a beautiful one in their garden about an hour from Toulouse, very hot summers (daily about 30°C) and dry but cold winters (down to -12°C last winter). Flowers beautifully and self seeds about (a couple of which and some seeds are on their way to me later in the year I've just been told) -- Regards Bob In Runnymede, 17 miles West of London |
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At the moment I have a spring planted species about 1.5m tall with not a leave dropped, two heavy frosts so far. We are located in central Scotland and will keep you posted as to progress. Our first sighting of this beautiful plant was in a town square in Switzerland(Valais) We observed over many summers and winters and was always stunning. |
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