The best time to harvest flower seeds is when the plants are dry, and the seeds have fully matured. For most annuals, this happens late in the season, as the blooms fade and seed pods dry out on the ...

Plant some if you want to add a pop of color to your garden ... Store excess seeds in a cool, dry place to save them for next year. You can either direct sow zinnia seeds in late spring or early ...

Plant some if you want to add a pop of color ... You can either direct sow zinnia seeds in late spring or early summer when ...

Kristine Lang, assistant professor and SDSU Extension Consumer Horticulture Specialist, managed the research trials. Over two ...