Mine have been very disappointing this year, of the four I've got, one flowered in late August, two didn't flower at all and one only actually flowered about three weeks ago which I thought was very late. They've been in about four years and were pretty good the first year and I'm wondering if the last two hard winters have taken their toll. The soil is very free draining and they're all in full sun. I covered them over with about 3 in of mulch at the beginning of last winter but I wonder if either that should have been thicker or if I should start feeding them earlier in the spring? I used Phostrogen as a feed and also added quite a lot of home-made compost and commercial soil improver because the soil is pretty poor.
Any suggestions about what I might be doing wrong?
Any suggestions about what I might be doing wrong?
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