- Season: Annual
- USDA Zones: 4 - 10
- Height: 6 - 12 inches
- Bloom Season: Late spring to early summer
- Bloom Color: Blue
- Environment: Full sun to partial shade
- Soil Type: Rich, moist soils
- Temperature: 39F, after 14 days, move to 50F
- Average Germ Time: 30 - 40 days
- Light Required: Yes
- Depth: 1/4 inch
- Sowing Rate: 4 - 5 seeds per plant
- Moisture: Keep seeds moist until germination
- Plant Spacing: 9 - 12 inches
Blue Woodruff (Asperula Orientalis Blue Surprise) - Blue Woodruff seeds are a planting favorite of many herb gardeners. Asperula Orientalis, also called Oriental Woodruff, blooms in late spring to early summer with fluffy, lavender-blue flowers. Its lance-shaped leaves are wonderfully scented, creating a lovely perfume that wafts through the garden. The Oriental Woodruff herb is a terrific companion plant for roses, shrubs and large perennials. It tolerates quite a bit of shade, does well in moist locations, and the flowers attract butterflies. A synonymous botanical name is Asperula azurea.
How To Grow Blue Woodruff: Start Blue Woodruff seeds indoors in the late winter for transplanting out in the spring. Or, many gardeners recommend sowing the herbs seeds directly outdoors in prepared seedbeds several weeks before the end of frost season. The Blue Woodruff herb seeds germinate better in cooler temperatures. The Blue Woodruff herb does not perform well in extremely hot weather, so it may not survive the hottest weeks of summer. In cooler regions, the Blue Woodruff plant continues to look and smell fresh right up until frost. Blue Woodruff is one herb plant that reliably re-seeds itself for another year of blooming.