Blue Hyssop Seeds, 150 seeds

Blue Hyssop (Hyssopus officinalis) is a hardy perennial herb prized for its aromatic leaves and vibrant blue flower spikes. Traditionally used in herbal teas and remedies, Hyssop also serves as a striking ornamental for borders, rock gardens, and pollinator-friendly spaces. With its strong fragrance and long bloom season, Blue Hyssop is perfect for herbal wellness gardens and adds beauty as well as function.

Seed Information

• Type: Herb Seeds
• Common Name: Blue Hyssop, Common Hyssop
• Genus: Hyssopus
• Species: Hyssopus officinalis
• Life Cycle: Perennial
• Features: Fragrant foliage, blue flowers, herbal and ornamental use, pollinator friendly, drought tolerant
• Season of Interest: Summer to early fall blooming
• Indoor/Outdoor: Both (herbal gardens, borders, containers)
• Sunlight: Full sun
• Cultivating Difficulty: Easy to moderate
• Watering: Light to moderate, drought tolerant once established
• Climate: Temperate, Mediterranean
• Growth Habit: Upright clumping perennial, 18–24 in tall
• Soil Type: Well-draining sandy or rocky soil
• Soil pH: 6.0–7.5
• Planting Time: Spring after frost or fall in mild climates

Growing Instructions

• When to Plant: Sow indoors 6–8 weeks before last frost or direct sow outdoors in spring
• Soil: Well-draining, sandy or rocky soil, not overly rich
• Sunlight: Full sun (6–8 hours daily)
• Watering: Water moderately; allow soil to dry slightly between waterings
• Spacing: 12–18 inches apart
• Germination: 14–21 days at 65–70°F (18–21°C)
• Bloom Season: Mid-summer to early fall
• Tips: Prune after flowering to maintain shape and encourage new growth; suitable for containers and dry gardens