Silphium laeve
| Silphium laeve | |
| Light: |   |
| Moisture: |  |
| Hardiness: | 4 |
| Soil pH: | 5.6-8.4 |
| Native to: | |
| Edible Rating: |  |
| Tea: | Yes |
 | |
Silphium laeve
Propagation: Seed - best sown as soon as it is ripe in a greenhouse[1]. Prick out the seedlings into individual pots as soon as they are large enough to handle and plant them out in the summer.
Division in spring[2]. This is very difficult due to the deep and extensive root system.
Cultivation: We have very little information on this species and do not know if it will be hardy in Britain. The following notes are based on the general needs of the genus.
Succeeds in any ordinary garden soil[3]. Prefers a deep moisture retentive moderately fertile soil that is not too nitrogen rich, in sun or dappled shade[1].
Plants have a deep and extensive root system which makes transplanting difficult[1].
Range: N. America.
Edibility: Root[4][5][6]. No more details are given in the reports.
Pollinators: Insects
Soil: Can grow in light, medium, and heavy soils.
Flower Type: Hermaphrodite
Links
References
- ↑ 1.0 1.1 1.2 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Brickell, Christopher. The RHS Gardener's Encyclopedia of Plants and Flowers. Dorling Kindersley Publishers, 1990.
- ↑ Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
- ↑ Grieve, Margaret. A Modern Herbal. Penguin, 1984.
- ↑ Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.