PlantPeers
Back to Catalog
No image available
Boraginaceae FAMILY

Onosma setosa

Onosma setosa

Edibility
0/5
Medicinal
2/5

Safety & Hazards

None known

Cultivation Details

HabitBiennial/Perennial
Growth—

Onosma setosa is native to semi-arid regions of the temperate zone and does not grow well in moister climates. It is a very cold-tolerant plant, however, and when fully dormant it can withstand temperatures down to about 20°c[1]. Species in this genus generally require a sunny position in a well-drained soil[2, 3]. Prefers a deep rather rich sandy loam[2]. Tolerates hot dry conditions and also drought once it is established, but dislikes moist climates at any time of the year[4, 1]. Species in this genus tend to grow well in crevices in a rock garden or on a wall[2, 3].

Propagation

Seed - we have no information on this species but suggest sowing the seed in a greenhouse in early spring. Prick out the seedlings into individual pots as soon as they are large enough to handle and grow them on in the greenhouse for at least their first winter. Plant them out in early summer. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Onosma+setosa>

Pollinators

Insects

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]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 Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [ 200 ]).
  3. [3]Perennials. Volumes 1 and 2. — Phillips. R. & Rix. M. · Pan Books · 1991 · ISBN 0-330-30936-9 ↩︎Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
  4. [4]The Dry Garden. — Chatto. B. · Dent · 1982 · ISBN 0460045512 ↩︎A good list of drought resistant plants with details on how to grow them.
  5. [5]Flora of the USSR. — Komarov. V. L. · Israel Program for Scientific Translation · 1968 · http://www.biodiversitylibrary.org · ISBN - ↩︎An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers. It can be downloaded from the Internet.
  6. [6]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.
  7. [7]Onosma L.: A review of phytochemistry and ethnopharmacology — Kumar N,. Kumar R. & Kishore K. · 2013 · http://10.4103/0973-7847.120513 ↩︎