Full Sun
Prefers very well-drained soil. Water early in the day so that the foliage is dry by evening, to prevent fungal diseases.
Keep in mind when planting that Happy Hour mix is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside.Portulaca is very sensitive to day length. If you sow too early, even under greenhouse conditions, the plants can “rosette” – ie, stop growing without flowering. Once they rosette, they don’t recover, even if you provide them with “long daylight conditions” afterwards. To prevent this, only sow when the day length is more than 10 hours 30 minutes1.
Do not cover the seeds. Light is not required for germination, but it is beneficial. Damping off is common.
Soil temperature should be kept higher than 22°C / 72°F to ensure good germination.Transplant in full sun after all danger of frost is past. Space plants 10 to 12 in. (25 to 30 cm) apart in welldrained soil.
As Happy Hour mix is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.