Posted: 22/08/2013 at 15:39
If you sow something that's not too hardy now, in or out of the propagator, it will probably germinate quite quickly. then you have to look after it all through the winter. If you keep them indoors they don't get enough light and get very 'leggy and soft', then they fall over when planting out time comes. If you keep them in a greenhouse, you'll need to heat it, expensive
I've tried all sorts of things with seeds and this year I sowed the ones that need a chill in the cold greenhouse at the beginning of January. Previously I'd sown them in pots, in autumn outside but some of them germinated within days leaving me with babies in pots to get through the winter. that's OK outside but they're too close together in seed pots and need pricking out. But they don't tolerate pricking out in the winter and rot instead
other hardy plants I sow in the same cold GH in March, there's still some chill, the verbena likes a bit of a chill, and they germinate when it warms up. Anything not hardy or needing warmth to germinate (that's not a lot for me), I sow when it gets warm.