Rudbeckia laciniata

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Rudbeckia laciniata
Rudbeckia laciniata.jpg
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:3
Soil pH:5.6-8.4
Height:8'
Width:3'
Blooms:Mid Summer-Mid Fall
Native to:
Nectary
Edible Rating:PFAF Edibility Rating
Medicinal Rating:PFAF Medicinal Rating
Tea:Yes
Poisonous

Rudbeckia laciniata (common names: cone flower and wild golden glow)

Propagation: Seed - sow April in a greenhouse. Only just cover the seed. Germination should take place within 2 weeks, prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer[K]. The seed can also be sown in situ[1].

Division in spring or autumn[1]. Very easy, larger divisions can be planted out direct into their permanent positions. We have found it best to pot up the smaller divisions and grow them on in a lightly shaded position in a cold frame, planting them out once they are well established in the summer.

Cultivation: Succeeds in an ordinary medium soil in sun or shade[1]. Requires a moist soil[2]. Prefers a well-drained soil[3]. Tolerates considerable wind exposure without support[K]. Plants can be grown in quite coarse grass, which can be cut annually in the autumn[4]. They grow particularly well in long hot late summers[5].

Dormant plants are hardy to about -25°c[6].

Some named forms have been selected for their ornamental value[6].

Members of this genus are rarely if ever troubled by browsing deer[4].

Plants can be invasive[5].

Range: N. America - Quebec to Manitoba, Colorado Florida. Locally naturalized garden escape in Britain[7].

Habitat: Stream banks and moist places in rich low ground[8][9].

Edibility: Edible young stems[10][11][12]. Cooked and eaten in the spring for 'good health'[13][14]. The young stems can be eaten like celery[14]. The stems can also be dried for later use[14]. Some caution is advised, see the notes above on toxicity.

Medicinal: A tea made from the root (mixed with Caulophyllum thalictroides) is used in the treatment of indigestion[13][14].

A poultice of the flowers (mixed with Agastache anisatum and Solidago sp.) is applied to burns[13][14].

Usage: A green dye is obtained from the flowers[15].

Pollinators: Bees, hoverflies

Soil: Can grow in light, medium, and heavy soils.

Wind: Tolerates strong winds

Seed Ripens: Late Summer-Mid Fall

Flower Type: Hermaphrodite

Known Hazards: This plant is reputed to be poisonous to cattle, sheep and pigs[11].

Links

References

  1. 1.0 1.1 1.2 Sanders, Thomas. Popular Hardy Perennials. Collingridge, 1926.
  2. Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  3. Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
  4. 4.0 4.1 Thomas, Graham. Perennial Garden Plants. J. M. Dent & Sons, 1990.
  5. 5.0 5.1 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  6. 6.0 6.1 Phillips, Roger and Martyn Rix. Perennials - The Definitve Reference. Pan Books, 1991.
  7. Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
  8. Lyndon, Merritt. Gray's Manual of Botany. American Book Co, 1950.
  9. Hitchcock, Leo. Vascular Plants of the Pacific Northwest. University of Washington Press, 1955.
  10. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  11. 11.0 11.1 Arnberger, Leslie. Flowers of the Southwest Mountains. Southwestern Monuments, 1968.
  12. Yanovsky, Elias. Food Plants of the North American Indians Publication 237. US Department of Agriculture.
  13. 13.0 13.1 13.2 Foster, Steven and Billy Tatum. Medicinal Plants of Eastern and Central North America. Houghton Mifflin, 1990.
  14. 14.0 14.1 14.2 14.3 14.4 Moerman, Daniel. Native American Ethnobotany. Timber Press, 1998.
  15. Grae, Ida. Nature's Colors. MacMillan Publishing, 1974.