Delphinium staphisagria

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Delphinium staphisagria
Light:Full Sun
Moisture:Mesic
Hardiness:8
Soil pH:5.6-8.4
Height:3'
Blooms:Late Spring-Late Summer
Native to:
Medicinal Rating:
Tea:Yes
Poisonous

Delphinium staphisagria (common name: stavesacre)

Propagation: Seed - sow March in a cold frame or April outdoors. Keep moist and in a shady position until germination takes place[1]. Seed can also be sown either in a cold frame or in situ as soon as it is ripe in mid to late summer[1], though seedlings from the outdoor sowing can be killed in cold winters[K]. The seed has a limited viability so it should be stored in a sealed container at about 3°c[2]. Temperatures above 15°c inhibit germination[1]. The seed usually germinates in 2 - 9 weeks at 15°c[1].

Cultivation: Succeeds in most soils and situations[3] but prefers a rich well-drained neutral to alkaline soil[3][2][4] and is intolerant of winter-wet soils[2]. Requires an open sunny position[5].

This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[2].

A greedy plant, inhibiting the growth of nearby plants, especially legumes[6].

Range: Europe - Mediterranean.

Habitat: Field verges and in scrub, on hot dry soils[7]. Often found in poor soils[8].

Medicinal: Stavesacre is a very poisonous plant that is rarely used in modern herbal medicine[4]. The seed is antispasmodic, cathartic, emetic and vermifuge[3][9]. The seeds cause a strong salivation if they are chewed and have been used in the treatment of toothache and other painful conditions of the throat and gums[8]. They are so strongly emetic and cathartic, however, that they are rarely used internally[3]. Externally, a decoction is used to treat itchy skin and parasites4]. The seed is very poisonous and should be used with great caution[3].

The plant has been used externally in the treatment of warts, lice and itches[8].

A homeopathic remedy is made from the seeds[8]. This is used in the treatment of a variety of ailments including toothache, injuries and headache[8].

Usage: A parasiticide is obtained from the leaves[10]. It is quite toxic and so is for external use only.

The seed is used to make a potent insecticide, parasiticide and to destroy vermin[3][11][7][12][4]. It is used to kill head lice[4].

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

Drainage: Prefers well drained soil.

Flower Type: Hermaphrodite

Known Hazards: All parts of the plant contain diterpene alkaloids and are highly toxic[3][13][4]. The plant is most toxic when it is young[2]. Ingestion of a lethal dose produces a feeling of excitement, followed by depression and extreme sensitivity of the nerves,

Links

References

  1. 1.0 1.1 1.2 1.3 Bird, Alfred. Focus on Plants Volume 5. Thompson and Morgan, 1991.
  2. 2.0 2.1 2.2 2.3 2.4 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Grieve, Margaret. A Modern Herbal. Penguin, 1984.
  4. 4.0 4.1 4.2 4.3 4.4 Bown, Deni. Royal Horticultural Society Encyclopaedia of Herbs and Their Uses. Dorling Kindersley, 1995.
  5. Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
  6. Hatfield, Audrey. How to Enjoy your Weeds. Frederick Muller Ltd, 1974.
  7. 7.0 7.1 Polunin, Oleg. Flowers of the Mediterranean. Hogarth Press, 1987.
  8. 8.0 8.1 8.2 8.3 8.4 Castro, Miranda. The Complete Homeopathy Handbook. Macmillan, 1990.
  9. Allan, Harry. Flora of New Zealand. Government Printer Publications, 1961.
  10. Schofield, Janice. Discovering Wild Plants.
  11. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  12. Polunin, Oleg. Flowers of Europe. Oxford University Press, 1969.
  13. Niebuhr, Alta. Herbs of Greece. Herb Society of America, 1970.