https://www.gardeningknowhow.com/ornamental/flowers/verbena/verbena-seed-harvest.htm
Saving Verbena Seeds - When To Harvest Verbena Seed From Plants | Gardening Know How
Dec 29, 2022 - There is a trick on how to collect verbena seeds so they are just ripe but have not released from the pods. Knowing the right time for verbena seed harvest...
verbena seeds