Can be wintersown. Do NOT cover seed as it requires light for germination. High temperatures may prevent germination.
Soil temperature should be kept higher than 10°C / 50°F to ensure good germination.These estimates for how long Primrose takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Primula chionantha purpurea