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Liliaceae FAMILY

Lilium superbum

Lilium superbum

Edibility
3/5
Medicinal
0/5

Safety & Hazards

None known

Cultivation Details

HabitBulb
Growth—

Lilium superbum is a very cold-hardy plant, able to tolerate temperatures down to around -35°c when fully dormant[1]. Prefers an open free-draining humus-rich loamy soil with its roots in the shade and its head in the sun[1]. Requires a lime-free soil[2, 3, 4, 5]. Does well in a woodland, succeeding in sun or shade[2, 3, 5]. Stem rooting, the bulbs should be planted 12 - 20cm deep on a few stones[5]. Early to mid autumn is the best time to plant out the bulbs in cool temperate areas, in warmer areas they can be planted out as late as late autumn[1]. A very ornamental plant[6], it flowers in 4 years from seed[5]. Hybridizes with L. canadense but does not seem to cross with other species[5]. The plant should be protected against rabbits and slugs in early spring. If the shoot tip is eaten out the bulb will not grow in that year and will lose vigour[1].

Propagation

Seed - delayed hypogeal germination[7]. Best sown as soon as ripe in a cold frame, it should germinate in spring[5]. Stored seed will require a warm/cold/warm cycle of stratification, each period being about 2 months long[8]. Grow on in cool shady conditions. Great care should be taken in pricking out the young seedlings, many people leave them in the seed pot until they die down at the end of their second years growth. This necessitates sowing the seed thinly and using a reasonably fertile sowing medium. The plants will also require regular feeding when in growth. Divide the young bulbs when they are dormant, putting 2 - 3 in each pot, and grow them on for at least another year before planting them out into their permanent positions when the plants are dormant[PFAF]. Division with care in the autumn once the leaves have died down. Replant immediately[1]. Bulb scales can be removed from the bulbs in early autumn. If they are kept in a warm dark place in a bag of moist peat, they will produce bulblets. These bulblets can be potted up and grown on in the greenhouse until they are large enough to plant out[1]. Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2026-02-21. <temperate.theferns.info/plant/Lilium+superbum>

Pollinators

Butterflies

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]Plants for Shade. — Knight. F. P. · Royal Horticultural Society. · 1980 · ISBN 0-900629-78-9 ↩︎A small but informative booklet listing plants that can be grown in shady positions with a few cultivation details.
  3. [3]Hardy Bulbs.; Including Half-hardy Bulbs and Tuberous and Fiberous-rooted Plants — Grey. C. H. · Williams & Norgate. · 1938 · ISBN - ↩︎Rather dated now, but an immense work on bulbs for temperate zones and how to grow them. Three large volumes.
  4. [4]Growing Lilies. — Fox. D. · Croom Helm · 1985 ↩︎A lovely and very readable book dealing with the cultivation of the genus Lilium.
  5. [5]Lilies - Their Culture and Management. — Woodcock. and Coutts. · Country Life · 1935 · ISBN - ↩︎A classic, but dated. Deals with the genus Lilium.
  6. [6]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 ]).
  7. [7]The Plantsman. Vol. 4. 1982 - 1983. — ? · Royal Horticultural Society · 1982 · ISBN - ↩︎Excerpts from the periodical giving cultivation details and other notes on some of the useful plants, including Distylium racemosum and some perennial members of the family Berberidaceae.
  8. [8]Lilies and Related Plants. — RHS Lily Group. ↩︎Lots of interesting snippets about plants in the family Liliaceae (in the old, broad sense)
  9. [9]Flora of N. America — http://flora.huh.harvard.edu/fna/ ↩︎An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
  10. [10]Gray's Manual of Botany.Eighth Edition — Fernald. M. L. · American Book Co.; New York · 1950 · ISBN 0442222505 ↩︎A bit dated but a good and concise flora of the eastern part of N. America.
  11. [11]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.
  12. [12]A Dictionary of Plants Used by Man. — Usher. G. · Constable · 1974 · ISBN 0094579202 ↩︎Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
  13. [13]Tanaka's Cyclopedia of Edible Plants of the World. — Tanaka. T. & Nakao S. · Keigaku Publishing; Tokyo · 1976 · ISBN - ↩︎The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
  14. [14]Edible Native Plants of the Rocky Mountains. — Harrington. H. D. · University of New Mexico Press · 1967 · ISBN 0-8623-0343-9 ↩︎A superb book. Very readable, it gives the results of the authors experiments with native edible plants.
  15. [15]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.
  16. [16]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.
  17. [17]An Illustrated Flora of the Northern United States and Canada — Britton. N. L. Brown. A. · Dover Publications. New York. · 1970 · ISBN 0-486-22642-5 ↩︎Reprint of a 1913 Flora, but still a very useful book.
  18. [18]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.
  19. [PFAF]Plants for a Future — pfaf.org ↩︎