Phacelia won't germinate

[ourarka]

Last year I had great success using Phacelia tanecifolia as a green manure. This yeear, I just can't get it to germinate .... other than the odd seedling or two. I have created a lovely till, broadcast sown and raked it in then watered. Any ideas why it is so stubborn? I have done this three times over the past three weeks and hardly anything - is it too warm this time of year? Surely not.

[Two_Sheds]

I've had that happen with repeated alfalfa sowings. It would be worth covering with netting in case, just maybe birds are eating the seed.

My own phacelia is self-sown, and comes up everywhere but not all year round, it definitely has its own seasons, eg there are no new seedlings during the summer ~ they come in spring and autumn

[mothhawk]

Or maybe slugs are grazing the newly emerged seedlings off over-night before you even see them. And slugs will graze on the actual seeds too.