Q.How do I plant annual periwinkles to encourage their natural duplication?
How can I plant annual perwinkles to encourage their natural duplication?

Heather
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on September 23, 2012
Typically, this flower will reseed on its own. You can encourage reseeding by avoiding deadheading, planting the original plants in a sheltered location and laying down a bit of protection in the fall, such as straw or a bit of mulch.
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