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All ratings refer to the UK growing conditions unless otherwise stated. Minimum
temperature ranges (in degrees C) are shown in brackets
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
P. viridiglaucescens is a robust, very vigorous bamboo with green canes, maturing to yellow-green, with plentiful bright green leaves, glaucous beneath to 15cm long. Forms a thicket in ideal condtions
P. flexuosa has slightly glossy green wavy canes to 3m tall, which mature to yellow-brown then almost black, with narrow glossy, dark green leaves to 15cm in length which retain their colour through winter
'Castillonii' is a highly ornamental, robust bamboo with thick golden-yellow canes to 4.5m high, striped green in the grooves, and glossy, dark-green lance-shaped leaves to 15cm in length
P. aureosulcata f. aureocaulis has pale, golden-yellow canes to 5m or more, reddish when young, sometimes striped with green near the base, bearing lance-shaped mid-green leaves
P. vivax f. aureocaulis is a vigorous bamboo with tall upright, golden-yellow canes, to 8m high, striped with green bearing dense, drooping leaves to 20cm in length
P. aurea is a graceful evergreen bamboo producing large clumps of bright green canes 2.5-3.5m high becoming yellowish with age and exposure. Leaves linear-lanceolate are yellow to golden-green , to 18cm in length
P. nigra is a large, elegant evergreen bamboo with arching canes, green at first becoming blackish-brown with maturity, and narrow-lanceolate leaves to 12cm in length
'Holochrysa' is a robust bamboo to 8m tall in mild locations, with rich yellow canes, occasionally striped with green, and narrowly lance-shaped leaves to 20cm long
P. nigra f. henonis is an evergreen bamboo with tall, graceful bright green young canes, brownish-yellow when mature, 2.5-4m high, with abundant narrowly-lanceolate glossy dark green leaves to 10cm in length.
'Tsuboii', a relatively dwarf bamboo, grown for its creamy-white variegated leaves, has a somewhat pendulous habit. As the leaves develop on the new culms, their weight gradually weighs them down
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