Somehow I missed noticing that the old culms on Borinda yulongshanensis are quite a stunning red. Photos were taken tonight in the dark. This plant is no slowpoke; I got a one gallon this spring and 7 big culms shot up over the past month or so. Soon it will have to go into a 5 gallon pot. Fingers crossed on its hardiness but Susanne apparently is growing it successfully in eastern Massachussetts.

I wonder if the new canes leaf out fully the following year or the current year.

johnw - +18c and constant drizzle and fog.

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johnw coastal Nova Scotia

Any idea on its heat hardiness, can it handle 90º temperatures?

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M

I really can't say how much heat it can take as we rarely if ever get to 90F. It is doing well in Muntelier, Switzerland where discoverer Robert Linder lives but checking the records in nearby Berne I don't see that they get above 88F either. Maybe someone will chime in from Europe but of course they usually don't get the extreme humidity like the eastern USA.

johnw

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johnw coastal Nova Scotia

I have Borinda fungosa seedling. In one year and a half, it had shown a lot of heat and sun exposure related stress. First summer I had to keep it in full shade to prevent it from curling leaves during the day. This year, its hardiness somewhat improved and it started shooting abundantly despite being curled during most of the day. Temperatures went up to 95F so far, perhaps only a bit higher.
When watered thoroughly leaves uncurl and it seems to be healthy, but it curls in an hour or two. I'm not sure if it can "drink" all the water in that short period of time, that's why I don't water it more than once a day.

I think that established bamboo in at least partly shaded location would thrive even when exposed to temperatures slightly above 90F. On the other hand, we have night low temperatures around or below 70F - If you have higher night temperatures, you could experience more heat related problems.

Good point on night temps Tarzanus. Here too it usually goes to between 12-18c at night - very rarely to 20+ - and oftentimes with fog that can linger until late morning so there is a good recuperative period.

johnw - +25c and very humid.

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johnw coastal Nova Scotia

I apologize for duplicating a thread name with this one. Having read the other thread there was not a lot of optimism on the hardiness of this Borinda, the other species having sustained damage in many mild gardens. I wonder if this is part of the reason why Jos lists it not as a Borinda but as a Fargesia?

Apparently the Linder form was collected at 3800m which would suggest a fair degree of cold hardiness but perhaps little heat tolerance.....

johnw

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johnw coastal Nova Scotia

No need to apologize, Bamboogarden still lists this species has Borinda yulongshanensis (Linder form) and rates it hardy to 0º F with a mature height of 16'. I imagine they have had excellent luck with this species, otherwise they wouldn't be so bullish in a minimum temp rating. Still would like more feedback on its heat tolerance or lack there of as time goes on.

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M