Primrose: Sowing, planting and harvest calendar
How do you sow primroses outdoors?
Before sowing primroses outdoors, identify the species or garden group on the packet. Germination needs vary within Primula. Summer or autumn sowing can suit common primrose and several hardy types; some seeds then benefit from a cool period. Follow the directions for the actual seed lot rather than using one date for every primrose. Check whether the selected plants are hardy enough for the conditions where the pots will stand.
Use a small tray or pots with drainage holes and a fine, free-draining seed mix. Moisten it before scattering seed thinly. For types needing light to germinate, press seed onto the surface without burying it; any very light covering should follow the supplier’s directions. Label the sowing to preserve its identity and date.
Place the containers outdoors in gentle light, protected from scorching sun and rain that washes the surface. Keep moisture even without standing water. A ventilated barrier can stop birds disturbing the seeds. Emergence may be slow or uneven, so keep the sowing until the expected interval has passed. Once seedlings are large enough to handle, prick them out carefully while preserving roots. Frost-sensitive species need appropriate protection.
How do you plant primroses?
When does the primrose flower?
