Centaurea acaulis
| Centaurea acaulis | |
| Light: |  |
| Moisture: |   |
| Soil pH: | 5.6-8.4 |
| Self Pollinated | |
| Native to: | |
| Tea: | Yes |
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Centaurea acaulis
Propagation: Seed - sow April in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Division in autumn. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the summer or following spring. This should be done at least once every three years in order to maintain the vigour of the plants.
Basal cuttings in spring. Harvest the shoots when they are about 10cm long with plenty of underground stem. Pot them up into individual pots and keep them in light shade in a cold frame or greenhouse until they are rooting well. Plant them out in the summer.
Cultivation: We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it could succeed outdoors in many parts of this country. The following notes are based on the general needs of the genus.
Succeeds in ordinary garden soil[1][2]. Prefers a well-drained fertile soil and a sunny position[2]. Tolerates dry, low fertility and alkaline soils[2].
Members of this genus are rarely if ever troubled by browsing deer[3].
Range: N. Africa. Naturalized in Spain[4].
Usage: A yellow dye is obtained from the root[5].
Pollinators: Bees, flies, lepidoptera, self
Soil: Can grow in light, medium, and heavy soils.
Drainage: Prefers well drained soil.
Flower Type: Hermaphrodite
Links
References
- ↑ Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
- ↑ 2.0 2.1 2.2 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
- ↑ Thomas, Graham. Perennial Garden Plants. J. M. Dent & Sons, 1990.
- ↑ Tutin, Tom et al.. Flora Europaea. Cambridge University Press, 1964.
- ↑ Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.