Just chiming into say that this stuff seems like good quality, I got 2 bags of manure/compost blend and 2 bags of leaf compost. Black in color, well sifted, no plastic and no mulchy chunks! I got mine from Great Big Greenhouse in Richmond.
I think this is due to temperature swings (some days this spring have been 90F/32C and some nights have been just above freezing). We are also in a severe drought here in Virginia though I've been watering. Went ahead and picked this first crop hopefully the remaining berries all turn red! (These half guys still tasted pretty good). But if you have any tips to get all the strawberries to turn red let me know!