Posted: 18/03/2014 at 21:14
loganb, I have always been told to expect frost up to May18th and then sort of ignore that info except for VERY frost tender plants. So my pelagoniums that have been in the g/h for the winter will go out on April 1st as I need the space in the g/h for seedlings. For sowing seeds directly outside it is a good idea to warm up the soil with cloches/plastic sheeting/old bits of polycarbonate, whatever you have or can get hold of. So warm the soil up for 2 weeks, sow your seeds and have some fleece perhaps to put on top to keep the heat in?