Phyllostachys flavescens-inversa R.Stover
Phyllostachys spectabilis C.D.Chu & C.S.Chao
Common Name: Yellow-Groove Bamboo
Phyllostachys aureosulcata is an evergreen bamboo that can grow up to 9 metres tall; the erect, woody culms are up to 40mm in diameter with thin-walled internodes up to 40cm long[
]. The rhizomes are elongated, the plant having a running habit that can produce new canes some distance from the main clump, especially in warm climates. This tendency to run, however, is somewhat curtailed in cooler climates, where new shoot production can be rather reduced.
The plant is harvested from the wild for used as a food and a source of materials. It is commonly grown as an ornamental, where it is particularly valued for the large kinks found in the bottoms of some culms[
E. Asia - eastern China.
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Phyllostachys aureosulcata is cultivated in the temperate and warm temperate regions of eastern China. It can tolertate occasional temperatures down to about -20°c[
], though it dislikes prolonged exposure to hard frosts[
Succeeds in full sun and in dappled shade. Requires a rich damp soil in a sheltered position.
This species is notably resistant to honey fungus[
The bottoms of some culms have large kinks in them, this limits their use for timber etc but makes them more ornamental.
Bamboos have an interesting method of growth. Each plant produces a number of new stems annually - these stems grow to their maximum height in their first year of growth, subsequent growth in the stem being limited to the production of new side branches and leaves. In the case of some mature tropical species the new stem could be as much as 30 metres tall, with daily increases in height of 30cm or more during their peak growth time. This makes them some of the fastest-growing species in the world[
Bamboos in general are usually monocarpic, living for many years before flowering, then flowering and seeding profusely for a period of 1 - 3 years before usually dying. This pattern can vary - sometimes flowering is sporadic, with plants flowering annually and not dying; at other times it is gregarious with all the plants in a specific species coming into flower at the same time.
Young shoots - raw or cooked. They have very little bitterness, even when eaten raw[
]. The canes of plants grown in Britain are about 25mm in diameter[
], though they can reach up to 4cm in diameter[
]. The shoots are harvested in the spring when they are about 8cm above the ground, cutting them about 5cm below soil level.
Plants can be grown as a screen or a hedge, where they make an excellent buffer that helps to reduce noise. The roots can be rather running in warmer climates, where they will need some form of root barrier to keep them in place[
This is a good companion species to grow in a woodland because the plants have shallow root systems that do not compete with deep tree roots[
The canes are not of the best quality but make good plant supports[
Seed - surface sow as soon as it is ripe in a greenhouse at about 20°c. Do not allow the compost to dry out. Germination usually takes place fairly quickly so long as the seed is of good quality, though it can take 3 - 6 months. Grow on in a lightly shaded place in the greenhouse until large enough to plant out. Seed is rarely available.
Division in spring as new growth commences. Divisions from the open ground do not transplant well, so will need careful treatment and nurturing under cover in pots until at least late spring[
]. Division is best carried out in wet weather and small divisions will establish better than large clumps[
]. Another report says that you can take large divisions from established clumps and transfer them straight to their permanent positions, misting or drenching them frequently until they are established[
Basal cane cuttings in spring.