From seed the first 5 took 7 days to pop. Did altogether and 100% success rate. Mixed my own soil with 3 parts peat. 3 parts acidic compost. 2 parts perlite and 1 part vermiculite. Spelling could be wrong. There 16 days in and only slightly watered twice. The other 8 went out last Sunday. Learned a lot last year . Water is ph of 6.1. I probably won't add any nutes for another 2 weeks. Check out my outdoor auto blueberry journal from last year. I'm starting to realise that they are very light feeders and like to work for there growth. I used lidls fabric bags for the early ones and 10 to 12 ltr fabric pots for the rest. The roots love the air and I'm hoping for some good results this summer. Add 3 weeks when growing autos outdoors. At least that's my experience. Shout out to fast buds. Never had one bad seed in 3 years..