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Useful Temperate Plants

Calochortus uniflorus

Hook. & Arn.

Liliaceae

+ Synonyms

Calochortus lilacinus Kellogg

Cyclobothra uniflora (Hook. & Arn.) Kunth

Common Name: Large-Flowered Star Tulip

No Image.

General Information

Calochortus uniflorus is a herbaceous perennial plant producing a cluster of persistent, grass-like basal leaves 10 - 40cm long from an underground bulb. A flowering stem 5 - 10cm long, bearing bulblets near the base is produced[
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].
The plant was a traditional food of the native N. Americans and often eaten in quantity. It is grown as an ornamental, valued for its attractive flowers.

Known Hazards

None known

Botanical References

60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.

Range

South-western N. America - Oregon, California

Habitat

Low moist meadows on the western side of the Cascades; at elevations from sea level to 200 metres[
60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].

Properties

Edibility Rating *  *
HabitBulb
Height0.20 m
PollinatorsInsects
Cultivation StatusOrnamental, Wild

Cultivation Details

Calochortus uniflorus is native to semi-arid climates in western N. America, growing in freely draining soils. Whilst being very cold hardy, it can be a rather difficult plant to cultivate in moister temperate climates, being very intolerant of wetness especially when dormant.
Requires a deep very well-drained fertile sandy soil in a sunny position and must be kept dry over winter[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. The plant requires plenty of moisture when in growth, but very dry conditions after it has flowered[
245
Title
Scented Flora of the World.
Publication
 
Author
Genders. R.
Publisher
Robert Hale. London.
Year
1994
ISBN
0-7090-5440-8
Description
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
]. The plants should not be crowded by other plants[
214
Title
The New Plantsman. Volume 1, 1994.
Publication
 
Author
Matthews. V.
Publisher
Royal Horticultural Society
Year
1994
ISBN
1352-4186
Description
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.
]. In moist climates it is usually easier to grow this species in a bulb frame, though it is worth trying outdoors at the base of a south-facing wall, especially with shrubs that like these conditions[
120
Title
The Plantsman. Vol. 2. 1980 - 1981.
Publication
 
Author
?
Publisher
Royal Horticultural Society
Year
1980
ISBN
-
Description
Excerpts from the periodical giving cultivation details and other notes on some of the useful plants including Billardiera spp, Calochortus spp, Drimys spp.
]. Bulbs have succeeded in a cold frame with the cover removed from March to October[
214
Title
The New Plantsman. Volume 1, 1994.
Publication
 
Author
Matthews. V.
Publisher
Royal Horticultural Society
Year
1994
ISBN
1352-4186
Description
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.
].
Bulbs can be lifted as soon as the foliage dies down in the summer and stored overwinter in a cool dry place, replanting in spring[
138
Title
Growing from Seed. Volume 3.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1989
ISBN
-
Description
Very readable magazine with lots of information on propagation.
]. Another report says that they should be replanted immediately[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
].
Bulbs frequently divide after flowering, the bulblets taking 2 years to reach flowering size[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
The flowers are sweetly scented[
245
Title
Scented Flora of the World.
Publication
 
Author
Genders. R.
Publisher
Robert Hale. London.
Year
1994
ISBN
0-7090-5440-8
Description
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
].
When grown in cultivation, hand pollination is usually necessary if seed is required[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
].

Edible Uses

Bulb - raw or cooked[
92
Title
Early Uses of Californian Plants.
Publication
 
Author
Balls. E. K.
Publisher
University of California Press
Year
1975
ISBN
0-520-00072-2
Description
A nice readable book.
,
161
Title
Food Plants of the N. American Indians. Publication no. 237.
Publication
 
Author
Yanovsky. E.
Publisher
U.S. Depf of Agriculture.
Year
 
ISBN
-
Description
A comprehensive but very terse guide. Not for the casual reader.
].

Medicinal

None known

Other Uses

None known

Propagation

Seed - sow as soon as ripe or early spring in a cold frame in a very sharply draining medium. Stratification may be helpful. Germination usually takes place within 1 - 6 months at 15°c[
138
Title
Growing from Seed. Volume 3.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1989
ISBN
-
Description
Very readable magazine with lots of information on propagation.
]. Leave the seedlings undisturbed for their first two years growth[
138
Title
Growing from Seed. Volume 3.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1989
ISBN
-
Description
Very readable magazine with lots of information on propagation.
], but give them an occasional liquid feed to ensure they do not become nutrient deficient. It is quite difficult to get the seedlings through their first period of dormancy since it is all too easy either to dry them out completely or keep them too moist when they will rot[
214
Title
The New Plantsman. Volume 1, 1994.
Publication
 
Author
Matthews. V.
Publisher
Royal Horticultural Society
Year
1994
ISBN
1352-4186
Description
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.
]. After their second year of growth, pot up the dormant bulbs in late summer and grow them on for at least another 2 years in the greenhouse before trying them outside. Seedlings take about 5 - 7 years to come into flower[
214
Title
The New Plantsman. Volume 1, 1994.
Publication
 
Author
Matthews. V.
Publisher
Royal Horticultural Society
Year
1994
ISBN
1352-4186
Description
A quarterly magazine, it has articles on Himalayacalamus hookerianus, hardy Euphorbias and an excellent article on Hippophae spp.
].
Division of the bulbs as soon as the foliage dies down. One report says that the bulbs must be planted into their permanent positions immediately[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
], whilst another says that they can be stored overwinter and replanted in the spring[
138
Title
Growing from Seed. Volume 3.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1989
ISBN
-
Description
Very readable magazine with lots of information on propagation.
].
Stem bulbils, harvested from the stems after flowering[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. They can be stored cool and dry then planted in pots in the cold frame in the spring.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2018-12-13. <temperate.theferns.info/plant/Calochortus+uniflorus>

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