Ruta graveolens, commonly known as Common Rue or Herb-of-grace, is a hardy evergreen perennial native to Southern Europe and the Balkan Peninsula. Seeds require light to germinate and should be surface-sown; they typically germinate within 7-21 days in warm conditions (15-25°C). This species is easy to grow and commonly cultivated as an ornamental and medicinal herb worldwide.
Before sowing
Optional cold stratification can enhance germination: refrigerate seeds for 2-4 weeks at 5°C before sowing
Sowing
What to expect
Tips
Surface sow seeds and lightly press into soil; do not bury completely. Keep substrate consistently moist but not waterlogged until germination. Provide bright light during germination. Optional: pre-treat with cold stratification at 5°C for 2-4 weeks to enhance germination rates. Use peat pots for easier transplanting. Once seedlings are 3-4 inches tall, transplant to permanent location spaced 12-18 inches apart. Handle plants with gloves as oils may cause skin irritation in sunlight.
Sources: Johnny's Selected Seeds, Pure Asia Seeds, Seed Needs LLC, Magic Garden Seeds, Sheffield Seed Company, Plants for a Future, Missouri Botanical Garden
