How to grow Cape primrose 'Concord Blue'
Keep in mind when planting that Concord Blue is thought of as tender, so it is really important to ensure that the outside temperature is well above freezing before planting or moving outdoors.
Growing Concord Blue from seed
Soil temperature should be kept higher than 20°C / 68°F to ensure good germination.
Transplanting Concord Blue
Ensure that temperatures are mild and all chance of frost has passed before planting out, as Concord Blue is a tender plant.
Harvesting Concord Blue