blomma wrote: Pfg,
When I started Helianthus 3 years ago, I chilled the seeds. I put the pan of seeds in my garage for 2 weeks. If you have never grown this plant, give it lots of room. I didn't use Deno for them since the seeds are small. Didn't know then about sowing in peatmoss
The clump gets bigger each year. I started in February and it bloomed the first year. I moved it the following spring with my daughter's help and 2 fork spades. The roots grow large and deep. So plant it were it is to grow.
Below is the plant. It is 2 years old.I grow it next to the fence because it grow to 7 ft and need staking.