How To Start Gomphrena From Seed. Gomphrena is a beautiful. Place the tray in a bright place but not in direct sunlight as excessive sun exposure may damage the sprouts.
Commercially it is recommended to start germination one or two weeks before the last frost and it should be done in a controlled indoor environment. Keep soil surface moist. Use a good compostpreferably a good peat free compostdont skimp hereits not worth it.
Seedlings will emerge on average after 714 days although using a heat mat will speed germination.
Transplant - Sow 6-8 weeks before last frost. Save them until indoor planting time about six weeks before the last spring frost. Direct seeding is not recommended. Sep 17 2020 At the end of the season collect seeds at the base of each petal.