Earliest dates for starting sowing (indoors, under glass)
Coleman delivers the latest possible dates for sowing, but is there a chart or something like that for the earliest dates possible?
If not: e.g.,if the seed package says that this spceial seed should be sown in March, how early can I sow it if I start sowing indoors and later move the pots in my green house/cold frame?
Thanks for any hints how I can find the best dates for early sowing!!