Hyssop (Hyssopus officinalis) Seeds

Hyssop (Hyssopus officinalis) is a fragrant, drought-tolerant perennial herb with striking blue to violet flower spikes that bloom through summer. Its upright growth, dense foliage, and nectar-rich flowers make it a standout in borders, rock gardens, sensory gardens, and pollinator habitats. Easy to grow in sunny, well-drained soils, Hyssop delivers long-lasting color and supports bees, butterflies, and other beneficial garden visitors.

Features

• Showy blue-purple flower spikes with aromatic foliage.
• Excellent pollinator plant attracting bees & butterflies.
• Drought-tolerant perennial once established.
• Ideal for sensory gardens, borders, and rock gardens.
• Non-GMO Hyssopus officinalis seed variety.
• Compact, upright growth with long bloom season.

Specifications

• Common Name: Hyssop
• Scientific Name: Hyssopus officinalis
• Plant Type: Perennial herb
• USDA Zones: 4–9
• Bloom Color: Blue to violet flower spikes
• Foliage: Fragrant, narrow dark-green leaves
• Height: 18–30 inches
• Spread: 12–18 inches
• Growth Habit: Upright, bushy
• Heirloom: Yes
• GMO Status: Non-GMO
• Organic: Not certified organic
• Light Requirements: Full sun
• Soil Preference: Well-drained, sandy to average soil
• Water Needs: Low to moderate; drought tolerant once established
• Bloom Season: Mid-summer to fall
• Pollinator Friendly: Yes (bees, butterflies)
• Maintenance Level: Low
• Plant Spacing: 12–18 inches
• Seed Viability: 2–3 years stored cool & dry

Planting Guide

• Start seeds indoors 6–8 weeks before last frost, or direct sow in spring.
• Lightly press seeds onto soil surface; cover with a thin layer (1/8 inch).
• Keep soil lightly moist until germination (14–28 days).
• Provide bright light and good air circulation for seedlings.
• Transplant outdoors after frost danger has passed.
• Choose full sun and well-drained soil for strongest blooms.
• Water moderately until established; reduce watering afterward.
• Trim after flowering to encourage bushier growth and reblooming.
• Leave seedheads in fall if self-seeding or wildlife interest is desired.