Propagation: Problems Starting Osteospermum, 1 by pennefeather

pennefeather wrote:
I don't know why this is so hard. Last year, I tried twice to start these from seed with no luck. Same thing this year. I have a good seed starting soil that has worked well for very other annual and perennial this year (about 12 different ones). I start it on a heat mat, with a plastic dome over the flat, and the lights are almost touching the dome.

Where am I going wrong? These are this year's seeds from Thompson and Morgan, so know that's not the problem. I would appreciate any help.