More on winter hardiness
I came in late on the "What looks best in winter" thread. I've grown bamboo
in two spots in Maine -- one a fairly sheltered, z6-ish coastal village and the other an inland frost bowl where we once got a low of -29F. This is from personal experience only: TALL BAMBOOS Every bamboo I've grown -- including the reputedly iron-hardy fargesias -- looks a bit shabby and weatherbeaten (if not worse) by the end of winter. On the other hand, the same can be said for many "evergreens" in the climate of northern New England. It's one of the things that makes spring so welcome. P. bissetti has proved clearly superior to anything else I've tried. Its arching habit turns out to be a survival trait during severe winters, because much of the foliage spends the critical months buried in snow. It is fairly quick to put out new growth when warm weather returns. Canes tend to remain viable and attractive for two or three seasons. P. aureosulcata does okay. I love the look of the golden-caned varieties (like p.a. aureocaulis) which make a nice contrast with bissetti. These are more likely than bissetti to die above the snow line, unless you take the trouble to stake down the (stiff and resistant) cames, which kind of defeats the purpose, no? P. nuda flat died on me, so tough cookies for that one. P. congesta (which is the same as what, dulcis?) was showing promise when I moved away from the colder inland spot. Last time I checked by, the little clump, in a state of utter neglect and complete lack of nurturing, was hanging on, though not thriving. The fargesias (nitida and murielae) are sturdy and attractive but they are stark naked from leaf loss by the end of winter. SHORTER TYPES Sasaella masamuniana albostriata is, hands down, the most successful I've tried here. Absolutely hardy and quite lovely most of the year. Pleioblastus viridistriata and p.v. chrysophylla have done well. They always die back to the roots, but this puts them in the category of an ornamental grass like, say, Panicum virgatum, which are still nice to look at because of the lovely, spare, golden-tan winter foliage. Huge, huge disappointment: Sasa palmata aka senanensis aka sinensis. This failed SO miserably despite its reputation for super-hardiness, I still wonder whether I might have been shipped the wrong species by New England Bamboo Company (which performed the same little favor with P. aureosulcata several years ago -- I deal now almost exclusively with Burt's Bamboo in Massachusetts). Not only did s. palmata drop dead at the first breath of winter, but it proved a pestilential house plant, luring whiteflies from at least five surrounding townships. I sacrified this to the angry Norse gods and have felt better ever since. |
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