Symptom
Seeds not coming up
Seeds need the right warmth, even moisture, air and depth. Cold, wet soil rots them; dry soil stops them; mice and birds eat them. Old seed is less vigorous.
Dig up a few seeds. Rotted seeds point to cold, wet soil; missing seeds to mice or birds; intact dry seeds to dry soil or too deep a sowing.
Likely causes
Ordered from the usual answer to the less likely one. Each links to the full problem.
Recorded on Basil
-
Fungal disease Common
Damping off
Seeds rot or seedlings collapse in cold, wet compost. -
Watering Possible
Overwatering
Seeds rot in saturated compost.
Less likely on Basil