A 9 cm Gratiola officinalis typically refers to a young plant supplied in a 9 cm nursery pot, ready for planting in garden beds or pond margins.

Plant Overview

• Common name: Hedge Hyssop

• Type: Hardy perennial

• Height: 30–60 cm

• Spread: 30–45 cm

• Flowers: Small, tubular white to pale pink flowers (summer)

• Foliage: Narrow, lance-shaped green leaves

Ideal Growing Conditions

• Position: Full sun to partial shade

• Soil: Moist, boggy, or shallow water (great for pond edges)

• Water depth: 0–5 cm above crown (if aquatic planting)

• Hardiness: Very hardy in temperate climates

Uses in the Garden

• Pond margins

• Bog gardens

• Naturalistic wildlife gardens

• Traditional medicinal herb gardens