When does lemon balm flower?
In June–September; the flowers are white.
When do I sow lemon balm?
In March–April (sow indoors).
When is lemon balm harvested?
In March–November.
Does lemon balm tolerate shade?
It tolerates part shade (3–6 hours of sun), but not full shade.
How much space does lemon balm need?
At maturity 0.4–0.9 m wide and 0.4–0.9 m tall; recommended spacing 40 cm.
Sage and Ligurian leafhoppers — what can you do?
Affected herbs are safe to eat; no control is needed. Encourage natural enemies (ladybirds, wasps, ground beetles, birds).
Powdery mildews — what can you do?
Destroy fallen infected leaves in autumn; do not over-feed, and protect from drought (stress invites powdery mildew). Prune out infected shoots early and destroy fallen leaves.