- Season: Perennial
- USDA Zones: 3 - 8
- Height: 6 - 10 inches
- Bloom Season: Mid summer to mid fall
- Bloom Color: Blue
- Environment: Partial shade
- Soil Type: Cool, well-drained soils, pH 6.0 - 7.4
- Temperature: 60F - 70F, If germination does not occur after 3 - 4 weeks a cooling period of 2-4 weeks is recommended
- Average Germ Time: 21 - 28 days
- Light Required: Yes
- Depth: Cover very thinly
- Sowing Rate: 5 - 8 seeds per plant
- Moisture: Keep seeds moist until germination
- Plant Spacing: 16 inches
Blue Herald Gentian (Gentiana Paradoxa Hybrida Blue Herald) - Grown from Gentian seeds, this hardy perennial has beautiful blue blooms. This Gentiana Blue Herald plant forms a clump of upright stems with narrow leaves. Bright blue trumpet-shaped flowers grow at the tips of the stems. This blue Gentian herb grows well at the edge of woodlands or in semi-shady rock garden that does not dry-out. Gentiana Blue Herald is a hard-to-find hybrid Gentian which looks outstanding with many other plants including Heuchera. Gentiana Blue Herald is a great choice for a rock garden planting where the soil does not dry out.
How To Grow Gentian Plants: Gentian seeds require some patience in getting them to germinate. There are two recommended methods for starting the herb seeds. First method, in the spring, mix the Gentiana herb seeds in a moist growing medium, place in a freezer bag, then stratify by refrigeration for two months. Second method, in the fall place the Gentian seeds in starter trays with seed starter mix that has been moistened. Cover the trays with glass or plastic to help keep the moisture in. Place the trays in a cold frame outdoors or place the flat in a protected area outdoors. Gentian seedlings can be transplanted into their permanent place either in spring or fall. Gentian plants require moist, humus soil that drains well.