soil: miracle grow moisture control/ sand mix
water: tap water
temp: 75-79 day 65-69 night

no extra nutes besides what comes in soil mix. started flowering month after planting and they seemed healthy. they still look good but the top leaves around the head bud are starting to curl under. its probably a ph problem in the soil or water but this is my first and i just wanted to have a stash for summer. can u still harvest early to save crop??