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Uses

Toxic parts

The roots contain saponins[1]. Whilst saponins are quite toxic to people, they are poorly absorbed by the body and so tend to pass straight through. They are also destroyed by prolonged heat, such as slow baking in an oven. Saponins are found in many common foods such as beans[K]. Saponins are much more toxic to some creatures, such as fish, and hunting tribes have traditionally put large quantities of them in streams, lakes etc in order to stupefy or kill the fish[K].

Edible uses

Notes

Fruit - raw or cooked[2][3][4][5][6]. Dry, with a bitter skin[7]. The fruit can be baked and either eaten immediately or formed into cakes and dried for later use[6]. The raw fruit can be dried for winter use[8][6]. The immature fruits are peeled, boiled and served with seasonings[9]. The soaked, cooked fruit can be made into a syrup and used like hot chocolate[6]. The fruit is up to 8cm long and 12mm wide[2].

Flowers and flower buds - raw or cooked[4][7]. Delicious raw, they can also be dried, crushed and used as a flavouring[10]. A delicious addition to the salad bowl, or used as a potherb[9]. Flowering stem - raw or cooked[11][7][5][6]. It can be cooked and used like asparagus[10]. The white inner portion of the stem is eaten[9]. Seedpods - cooked. They can be boiled or roasted and used as a vegetable[6].

The plant crowns have been roasted and eaten in times of food shortage[6].

Flowers

Fruit

Leaves

Seedpod

Material uses

Both the leaves, and a fibre obtained from the leaves, can be used for making cloth, ropes and mats[12][13][4][14][7][15][6].

The leaves can be split and used to make baskets[6]. The leaves are used as paint brushes and brooms[3][7][16]. The leaves can be split and used as a temporary tying material[6]. The sharp points of the leaves have been used as needles[6]. The roots are rich in saponins and can be used as a soap substitute[14][7][17].

The soap obtained from the root makes a good hair shampoo[17], it is said to be effective against dandruff and also to act as a tonic to stop the hair falling out[18][6]. The shampoo also rids the body of lice and other parasites[6].

Medicinal uses(Warning!)

A soap made from the crushed roots is said to be an effective treatment for dandruff and skin irritations[18][1].

A cold infusion of the root has been used to expedite the delivery of a child or the placenta[6]. The root is poulticed and applied to inflammations, wounds, bleeding cuts, sprains etc[1][6].

The rotten root can be crushed and boiled to make suds. Drinking these suds is said to induce the menopause in women, thereby rendering then infertile[6].

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a greenhouse. Pre-soaking the seed for 24 hours in warm water may reduce the germination time. It usually germinates within 1 - 12 months if kept at a temperature of 20°c. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse or cold frame for at least their first two winters. Plant them out into their permanent positions in early summer and consider giving them some winter protection for at least their first winter outdoors - a simple pane of glass is usually sufficient[K]. Seed is not produced in Britain unless the flowers are hand pollinated.

Root cuttings in late winter or early spring. Lift in April/May and remove small buds from base of stem and rhizomes. Dip in dry wood ashes to stop any bleeding and plant in a sandy soil in pots in a greenhouse until established[19].

Division of suckers in late spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the following spring.

Practical Plants is currently lacking information on propagation instructions of Yucca glauca. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

Thrives in most soils but prefers a sandy loam and full exposure to the south[20]. Dislikes chalky or peaty soils[21]. Can succeed in light shade[K]. Plants are hardier when grown on poor sandy soils[22]. Prefers a hot dry position and a poor soil[23]. Established plants are very drought tolerant[22].

Hardy to at least -30°c according to one report[10], whilst another one says that it is hardy to about -15°c[22]. A very ornamental plant[8], it rarely flowers unless in a dry sandy soil[24]. The scent of the flowers is most pronounced at night[25]. In the plants native environment, its flowers can only be pollinated by a certain species of moth. This moth cannot live in Britain and, if fruit and seed is required, hand pollination is necessary. This can be quite easily and successfully done using something like a small paint brush[8]. Individual crowns are monocarpic, dying after flowering[26]. However, the crown will usually produce a number of sideshoots before it dies and these will grow on to flower in later years[26]. Plants in this genus are notably resistant to honey fungus[22].

Members of this genus seem to be immune to the predations of rabbits[26]

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Yucca glauca. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Yucca glauca.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Yucca glauca
Genus
Yucca
Family
Agavaceae
Imported References
Medicinal uses
Material uses & Functions
Botanic
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
4
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light shade
Soil PH
Soil Texture
Soil Water Retention
Environmental Tolerances
  • Drought
  • Strong wind
Ecosystems
Native Climate Zones
None listed.
Adapted Climate Zones
None listed.
Native Geographical Range
None listed.
Native Environment
None listed.
Ecosystem Niche
None listed.
Root Zone Tendancy
None listed.
Life
Deciduous or Evergreen
Herbaceous or Woody
Life Cycle
Growth Rate
Mature Size
Fertility
?
Pollinators
Flower Colour
?
Flower Type

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"image:Yucca glauca (as Yucca stricta) Bot. Mag. 48. t. 2222. 1821..jpg|248px" cannot be used as a page name in this wiki.

"image:Yucca glauca (as Yucca stricta) Bot. Mag. 48. t. 2222. 1821..jpg|248px" cannot be used as a page name in this wiki.

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References

  1. ? 1.01.11.21.3 Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. ISBN 0395467225 (1990-00-00)
  2. ? 2.02.12.2 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
  3. ? 3.03.13.23.3 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
  4. ? 4.04.14.24.34.4 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
  5. ? 5.05.15.2 Yanovsky. E. Food Plants of the N. American Indians. Publication no. 237. U.S. Depf of Agriculture. ()
  6. ? 6.006.016.026.036.046.056.066.076.086.096.106.116.126.136.146.156.166.176.18 Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (1998-00-00)
  7. ? 7.07.17.27.37.47.57.67.7 Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press ISBN 0-8623-0343-9 (1967-00-00)
  8. ? 8.08.18.28.3 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
  9. ? 9.09.19.29.3 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
  10. ? 10.010.110.210.3 Bird. R. (Editor) Growing from Seed. Volume 4. Thompson and Morgan. (1990-00-00)
  11. ? 11.011.1 Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants. Van Nostrand Reinhold ISBN 0442222009 (1982-00-00)
  12. ? 12.012.1 Lust. J. The Herb Book. Bantam books ISBN 0-553-23827-2 (1983-00-00)
  13. ? 13.013.1 Schery. R. W. Plants for Man. ()
  14. ? 14.014.114.2 Sargent. C. S. Manual of the Trees of N. America. Dover Publications Inc. New York. ISBN 0-486-20278-X (1965-00-00)
  15. ? 15.015.1 Buchanan. R. A Weavers Garden. ()
  16. ? 16.016.1 Balls. E. K. Early Uses of Californian Plants. University of California Press ISBN 0-520-00072-2 (1975-00-00)
  17. ? 17.017.117.2 Saunders. C. F. Edible and Useful Wild Plants of the United States and Canada. Dover Publications ISBN 0-486-23310-3 (1976-00-00)
  18. ? 18.018.118.218.3 Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books ISBN 0-449-90589-6 (1980-00-00)
  19. ? Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
  20. ? 20.020.1 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
  21. ? Sanders. T. W. Popular Hardy Perennials. Collingridge (1926-00-00)
  22. ? 22.022.122.222.322.4 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
  23. ? Taylor. J. The Milder Garden. Dent (1990-00-00)
  24. ? Grey. C. H. Hardy Bulbs. Williams & Norgate. (1938-00-00)
  25. ? Genders. R. Scented Flora of the World. Robert Hale. London. ISBN 0-7090-5440-8 (1994-00-00)
  26. ? 26.026.126.2 Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
  27. ? Cite error: Invalid <ref> tag; no text was provided for refs named PFAFimport-60

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