- Sow undercover in post with warmth in early Spring or directly outside once frost danger has passed at 20C.
- A fine seed-based compost with plenty of added grit for drainage is ideal. Seed need only be pressed firmly into growing medium.
- Germination averages 14-21 days.
- Harden off young plants after all danger of frost has passed and plant to growing position with approx. 12 in spacing.
- The seedlings will initially be silver green and develop their blue silver colour when mature.
- Cut back foliage in early spring for mature plants and remove flower / seed stalks if you do not want them to self-seed and spread.





