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How to Grow Dierama From Seeds

Updated March 23, 2017

Dierama is a striking garden ornamental. An evergreen flowering plant, native to the mountains of southern Africa, it blooms along arching stems in yellow, white or shades of pink and purple. Generally, dierama is grown from corms, but it is possible to propagate the plant from seed. It will take the plant five years to flower when grown from seed, according to the specialists at the Royal Horticultural Society. Dierama is hardy to U.S. Department of Agriculture hardiness zones 8a to 10b.

Add a combination of equal parts of compost and vermiculite to 3-inch planting pots. Water the mix until the excess water drains from the bottom of the pots. Set them aside until they have drained completely and the planting mixture is damp, not saturated.

Place 12 seeds on the surface of the planting medium in each pot and cover them with a 1/8-inch layer of vermiculite. The seeds will germinate quicker if placed outdoors in a cold frame. Otherwise, find a cool, damp place to leave them. The dierama seeds should sprout within six weeks.

Transplant the seedlings into individual pots when they are 5 inches tall. Dierama does not tolerate too much root disturbance, so handle them carefully when transplanting. They should be planted in equal parts of compost and vermiculite. Leave the pots in a sunny area and do not allow the soil to dry out. Transplant the dierama into their permanent location the second spring after germination.

Add 3 to 4 inches of sharp sand to the planting bed and mix it to a depth of 6 inches. Plant the dierama at the same depth at which they have been growing and 2 feet apart.

Things You'll Need

  • Compost
  • Vermiculite
  • 3-inch planting pots
  • Sharp sand
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About the Author

Based in the American Southwest, Bridget Kelly has been writing about gardening and real estate since 2005. Her articles have appeared at Trulia.com, SFGate.com, GardenGuides.com, RE/MAX.com, MarketLeader.com, RealEstate.com, USAToday.com and in "Chicago Agent" magazine, to name a few. She holds a Bachelor of Arts in English with a concentration in creative writing.