Tweedia
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| Tweedia | |
|---|---|
| Tweedia caerulea, flowers | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Gentianales |
| Family: | Asclepiadaceae |
| Genus: | Tweedia |
Tweedia (syn Oxypetalum) is a genus of one species of straggling perennial grown for its clear pale blue, star shaped flowers, which are long lasting and cut well.
[edit] Cultivation
Tweedia require full sun in a well-drained soil that is dry. It is slightly frost hardy but requires little maintenance. Propagation is via seed.[1]
[edit] Species
Tweedia caerulea (syn. Oxypetalum caeruleum) is a perennial plant to 3ft with heart shaped, gray-green, downy leaves. The summer flowers age to purple and are followed by 6in long, boat shaped seed pods.The seeds have downy parachute like tufts (cipsela).
- T.c. Alba has white flowers.
- T.c. Rosea has pink flowers.
[edit] References
- ^ Botanica's Organic Gardening, Random House Publishing, Sydney, 2002, ISBN 1 74051 426 2