Well it’s time for another large group of plants I haven’t featured before, bamboos. They are a very useful group of plants as well, even more so at this time of year, as their bright canes help to enhance the winter garden and there is no bamboo that can do this better than Phyllostachys aureosulcata f. spectablis.
Phyllostachys aureosulcata is also know as the yellow-groove bamboo. It is a native of Zhejiang Province, Eastern China and was introduced in the USA in around 1901. In its native sites, it grows on the edges of woodlands and into woodland glades. Bamboos are normally divided up into clump forming and runners. Phyllostachys aureosulcata f. spectablis is a clump forming bamboo and can make a very big plant up to 7m in height and well over 3m wide. Phyllostachys aureosulcata f. spectablis has stunning yellow stems, that unlike others in the family, has a green strip in the distinctive groove in the back of the canes, hence the common name. They also sometimes make Zig Zag shape kinks in the canes as well. When the new canes emerge from the ground they are called Colms. With Phyllostachys aureosulcata f. spectablis they emerge with a pinkish tinge to them and are quite beautiful indeed. The name Phyllostachys is derived from the Greek phyllon meaning ‘leaf’ and stachys meaning ‘spike’. Aureosulcata is derived from the Latin aurea meaning ‘golden’ and sulcus meaning ‘furrow’.
Phyllostachys aureosulcata f. spectablis is a pretty tough bamboo, it will grow in most soils but it does prefer to be in sun or semishade. Even though it is a clump forming bamboo, it still can send out underground stems called rhizomes that help it spread into new areas. It is best to encase the bamboo in a root barrier, leaving enough room for the plant to grow. These clump forming bamboos tend to spread if they run out of food and water, so the best idea to keep them from spreading is to mulch once per year in the spring with garden compost, green waste and ensure that it has enough water during the dry spells. Each cane or colm, grows to its maximum height within 1 year. It is a good idea in each spring to remove a few of the older weaker canes from the clump to keep the clump looking young. It also give the new colms room to grow within the clump. The worse thing you can do is try and control the spread by removing the new canes, this will make the plant want to spread even more as it feels it’s under threat in this space. In the autumn it is also worth removing the lower leaves on the stems up to 5ft to let the stems shine though. Only other maintenance required is cutting back any rhizomes that spread from the plant. It is pretty disease free and is only propagated by dividing up the main clump.
It’s height and size makes it prefect to block off not so pleasant views from the garden so is excellent as either a specimen plant or as a screening plant.
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