Woad (Isatis tinctoria) is an attractive biennial ornamental herb known for its rosettes of blue-green leaves and airy clusters of golden flowers. Its unique foliage color adds striking contrast to borders and meadow-style plantings. During its bloom season, Woad supports pollinators, making it both visually appealing and ecologically beneficial in naturalistic garden designs.
Features
• Distinctive blue-green foliage for textured ornamental plantings
• Golden flower clusters support bees & beneficial insects
• Ideal for meadow gardens, borders & wildflower displays
• Biennial ornamental herb with strong architectural form
• Non-GMO Isatis tinctoria heirloom seed variety
Specifications
• Common Name: Woad
• Scientific Name: Isatis tinctoria
• Plant Type: Biennial ornamental herb
• USDA Zones: 4–9
• Height: 24–48 inches
• Spread: 18–30 inches
• Growth Habit: Basal rosette in year 1; tall flowering stalk in year 2
• Foliage: Blue-green, elongated leaves
• Flower Color: Yellow, airy clustered blooms
• Bloom Season: Spring to early summer (2nd year)
• Heirloom: Yes
• GMO Status: Non-GMO
• Organic: Not certified organic
• Light Requirements: Full sun preferred
• Soil Preference: Well-drained, moderately fertile soil
• Water Needs: Moderate; drought tolerant after establishment
• Pollinator Value: Highly attractive to bees & small insects
• Maintenance Level: Low
• Plant Spacing: 12–18 inches
• Seed Viability: 2–4 years stored cool & dry
Planting Guide
• Direct sow outdoors in fall or early spring (best for biennials).
• Sow ¼ inch deep in well-drained soil.
• Keep soil moist during germination (10–30 days).
• Full sun promotes better foliage color and stronger stems.
• Water moderately; reduce watering once established.
• Allow flower heads to mature if natural reseeding is desired.
• Remove old stalks after seed set to encourage fresh rosette growth.