Gentians I Have Known
I have a phobia or total lack of ability when it comes to growing Gentians. Because I expect to fail I have done so many many times and now I avoid Gentians like I wanted to avoid Gentain Violet bactericide as a child. (The purple dye you mum stained on cuts)
Gentian Facts
- The Gentians are evocative of the mountains (and that should tell me something about there cultivation).
- The majority of species flower in the deep, intense shade of blue for which Gentains are renown. ( New Zealand Gentians are white and there is a yellow Peruvian variety).
- Larger Gentians have 5 petals in a trumpet shape whilst smaller varieties have 5 petals that open like a star.
- In general European varieties flower in spring whilst the ‘easier’ Asian varieties flower in Autumn.
- This is a large genus with over 400 species and varieties.
Growing Tips
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- Gentians are fiercely lime hating and require moist but fast draining soil.
- Gentians are thought to be difficult to grow outside their wild habitat.
- Good clumps of root should be planted out between October and February.
- Once established the less the plants are meddled with the better
- Top species to grow in England include Gentain Acaulis, Gentian verna, the spring Gentian and Gentian septemfida the Crested Gentian.
- Gentiana sino-ornata is not only one of the easiest and most reliable, but also one of the loveliest with spectacular colour
The flower that is most evocative of mountain scenery must be the the Gentian with its alpine associations. Gentians make me blue in the face because I fail every time I try to grow these sumptuous blue flowers.
Here are some of the reasons I have failed: –
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- Gentians are known to be difficult to transplant .
- When seed is sown, it should be fresh or it will not germinate & grow.
- All Gentians prefer partial shade for at least some of the day.
- The Fringed Gentiana is a biennial variety which is extremely difficult to grow. I have been guilty of lumping all Gentians under one species as though it was a perennial, acid hating alpine. How wrong I was each variety needs to be understood in its own right.
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- I have failed to provide adequate drainage, most Gentians need gritty alpine conditions
- The Closed Gentiana may be grown in moist meadows but have no lime in the soil.
- Winter sow in coldframe or unheated greenhouse with ventilation
- The Gentianella is an easy sort to grow requiring limestone added to the soil.
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I resolve to try again in my Rockery. Perhaps with American, Australian and Japanese hybrids.