Posted: 27/02/2015 at 19:55
Last year i did a test of what would and wouldnt survive in a cold greenhouse and from about mid march my antirrhinum seedlings were in a cold greenhouse and survived fine. Cant remember if it was particular mild or not. I live in the northeast but am about 2 miles from the coast so im unsure if that keeps it a little milder. Most of my antirrhinum plants did survive last winter also to flower another season.