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Brassicaceae FAMILY

Brassica oleracea ramosa

Brassica oleracea ramosa

Edibility
3/5
Medicinal
0/5

Safety & Hazards

None known

Cultivation Details

HabitEvergreen Biennial/Perennial
Growth—

Perpetual kale is a very hardy plant, tolerating temperatures down to about -15°c[1]. It also tolerates high summer temperatures[1]. A very easily grown plant, succeeding in full sun in a well-drained fertile preferably alkaline soil[2, 1]. Prefers a heavy soil[2]. Succeeds in any reasonable soil[3] and will tolerate quite poor conditions[4]. Shade tolerant, growing well on a north border[3]. Succeeds in maritime gardens[1]. Tolerates a pH in the range 4.2 to 8.3. Although at one time this group of kales was quite widely grown as a winter leaf crop, it has fallen out of favour somewhat because the leaves are considered be coarser than other vegetables that can be imported from warmer areas in the winter. This is a shame since the plants are very easy to grow, tolerate adverse conditions and are very productive. In addition some of them, particularly the form 'Daubenton', are reliably perennial and will remain productive in the garden for several years[5, PFAF]. Kale plants are less likely to be eaten by pigeons than the other members of this genus[4].

Propagation

Seed - sow in a seedbed outdoors in mid spring. Plant out into their permanent positions in the summer as space permits. Do not let the seedlings get overcrowded or they will soon become leggy and will not make such good plants. If your seedlings do get leggy, it is possible to plant them rather deeper into the soil - the buried stems will soon form roots and the plant will be better supported. The perennial forms can be increased by cuttings. These can be taken at almost any time that they are available. Use shoots about 8cm long of the current year's growth and place them in individual pots in the cuttings frame. They root very quickly and easily[PFAF]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-20. <temperate.theferns.info/plant/Brassica+oleracea+ramosa>

Pollinators

Bees

References

  1. [1]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.
  2. [2]New Vegetable Growers Handbook. — Simons. · Penguin · 1977 · ISBN 0-14-046-050-0 ↩︎A good guide to growing vegetables in temperate areas, not entirely organic.
  3. [3]The Gardener's Assistant. — Thompson. B. · Blackie and Son. · 1878 · ISBN - ↩︎Excellent general but extensive guide to gardening practices in the 19th century. A very good section on fruits and vegetables with many little known species.
  4. [4]Vegetables — Phillips. R. & Rix. M. · Macmillan Reference Books, London. · 1995 · ISBN 0 333 62640 0 ↩︎Excellent and easily read book with good information and an excellent collection of photos of vegetables from around the world, including many unusual species.
  5. [5]Cornucopia - A Source Book of Edible Plants. — Facciola. S. · Kampong Publications · 1990 · ISBN 0-9628087-0-9 ↩︎Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
  6. [6]Sturtevant's Edible Plants of the World. — Hedrick. U. P. · Dover Publications · 1972 · ISBN 0-486-20459-6 ↩︎Lots of entries, quite a lot of information in most entries and references.
  7. [7]Dictionary of Economic Plants. — Uphof. J. C. Th. · Weinheim · 1959 · ISBN - ↩︎An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
  8. [PFAF]Plants for a Future — pfaf.org ↩︎