Gentiana
( jen - tee - AY - nuh )
Gentiana Species and Varietals
These flowers grow best in zones 2-6 and 14-17, though this can vary somewhat depending on the species. For more information, see the descriptions below. To find your zone, click here: Zone Map.
Gentiana asclepiadea (Willow Gentian) This native of Europe and western Asia has arching stems topped with deep blue flowers that open in late summer and early fall. The plant forms a clump 2-3 feet tall and 1.5 feet wide. Loves rich, neutral to acidic soil and does great when planted amongst ferns. Needs partial shade for best performance. |
Gentiana cruciata (Cross Gentian) This species of Gentian is native to Europe, Turkey and Siberia. It grows to form a rosette of thick leaves up to 8 inches long. Stalks clad with leaves sprout 8-16 inches tall and hold clusters of dark blue flowers towards the tips, nestled amongst the leaves. This species is not fussy about soil, and blooms in summer and early fall. |
Gentiana septemfida This species grows best in zones A1-A3, 1-6 and 14-17. They are native to Turkey, Iran, and Central Asia and have arching, sprawling stems 9-18 inches in length. The plant forms a mass 8 inches tall and 1 foot wide. Flowers are purple-blue and bloom in late summer in clusters. Gentiana septemfida lagodechiana is a similar plant, but has more widely spaced flowers. |
Gentiana sino-ornata Native to China and Tibet, this plant forms a rosette of bright green foliage 7 inches tall and a little wider, which sends out trailing stems that produce blue flower clusters in early autumn. These like acidic soil and partial shade. Mulch these plants with gravel for best performance. |
Caring for Gentiana
Although these plants are considered to be generally difficult to grow, the species listed above are great for gardens, and if provided the right care and conditions, can be grown successfully. They need humus rich soil with excellent drainage; some species prefer lime-free soil (these species are noted above). They enjoy consistent watering.
Propagation
Problems and Pests
Gallery
Videos
A video all about growing camellias successfully
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Propagating camellias
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Resources
The New Sunset Western Garden Book: The Ultimate Gardening Guide (2012) - Page 335, Gentiana
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