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Poaceae FAMILY

Semiarundinaria densiflora

Semiarundinaria densiflora

Edibility
0/5
Medicinal
0/5

Safety & Hazards

None known

Cultivation Details

HabitEvergreen Bamboo
Growth—

Semiarundinaria densiflora is a somewhat hardy bamboo[1], tolerating temperatures down to about -22°c[2, 3] Prefers a damp humus-rich soil in sun or semi-shade[3]. Dislikes drought[4]. A slow growing plant, it prefers a position sheltered from cold winds[2] but is fairly tolerant of maritime exposure[PFAF]. Succeeds in full sun and in partial shade. Species in this genus generally tolerate a wide range of soils and sites, though they prefer a damp humus-rich soil in sun or semi-shade[4, 5, 3]. They grow best in a position sheltered from cold winds[5]. Plants are generally not very tolerant of dry conditions[4]. Temperate bamboos have an interesting method of growth. Each plant produces a number of new stems annually – usually in the spring and early summer, and these stems grow to their maximum height in their first two to three months. Any subsequent growth in the stem in future years is limited to the production of new side branches and leaves. Temperate bamboo species usually grow for many years without flowering. When they do finally flower it is not unusual for all the plants of that species in the region to also flower. They do so profusely over a period of 1 - 3 years and will often then die, probably from exhaustion. Some species, if given plenty of organic matter at this time will gradually recover, although they will look rather poorly for a year or three. If fed with artificial NPK fertilizers at this time the plants are more likely to die[6]. Bamboo species are usually notably resistant to honey fungus[3].

Propagation

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. Prick out the seedlings into individual pots as soon as they are large enough to handle. Grow them on in a lightly shaded place in the greenhouse until large enough to plant out, which could be 2 - 3 years. The plants only flower at intervals of many years and so seed is rarely available. Division as the plants come into growth in spring. Take divisions with at least three canes in the clump, trying to cause as little root disturbance to the main plant as possible. Grow them on in light shade in a greenhouse in pots of a high fertility sandy medium. Mist the foliage regularly until plants are established. Plant them out into their permanent positions when a good root system has developed, which can take a year or more[3]. Basal cane cuttings. Rhizome cuttings. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Semiarundinaria+densiflora>

Pollinators

Wind

References

  1. [1]The Book of Bamboo — Farrelly. D. · Sierra Club. · 1984 · ISBN 0-87156-825-X ↩︎Very readable, giving lots of information on the uses of bamboos, both temperate and tropical.
  2. [2]Bamboos. — Lawson. · Faber · 1968 · ISBN - ↩︎Fairly comprehensive, it was once the standard work but is now rather dated. Deals with species hardy in Britain, giving cultivation details and some uses.
  3. [3]The New RHS Dictionary of Gardening. 1992. — Huxley. A. · MacMillan Press · 1992 · ISBN 0-333-47494-5 ↩︎Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
  4. [4]RHS Dictionary of Plants plus Supplement. 1956 — F. Chittendon. · Oxford University Press · 1951 · ISBN - ↩︎Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  5. [5]Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. — Bean. W. · Murray · 1981 · ISBN - ↩︎A classic with a wealth of information on the plants, but poor on pictures.
  6. [6]The Plantsman. Vol. 1. 1979 - 1980. — ? · Royal Horticultural Society · 1979 · ISBN - ↩︎Excerpts from the periodical giving cultivation details and other notes on some of the useful plants. A good article on the flowering of bamboos.
  7. [7]Flora of China — Missouri Botanical Garden Press; St. Louis. · 1994 · http://flora.huh.harvard.edu/china/ ↩︎An excellent, comprehensive resource in 25 volumes. In addition to the botanical information the flora also gives basic information on habitat and some uses. An on-line version is also available.
  8. [PFAF]Plants for a Future — pfaf.org ↩︎