In my quest to find the "perfect" indoor potting mix for me to use while indoors until pot out in late May/early June. I have researched many different mixes and still not quite sure what to try with my next batch of plants I'm potting up to #1 pots this weekend. (I have read the soil sticky also) I am currently using Pro-Mix Ultimate Organic with 30% Perlite added (the mix I linked must be the replacement or renamed version, my bags have blue accents vs red and are not on their site anymore). I am not set on using organic, It's just the bag that looked like a good choice last season and I had some left over so I am using that up this season.
The problem I have with my current mixture is it holds water for way to long. You can see this in my Glog if you are interested and or not following it currently. Even with a fan on them for 17 hours per day, the #1 pots hold just 2oz of water for 10 days before my plants start to wilt. The edema was caused by me watering them a bit too much at pot up, roughly 8oz or 9oz each and they didn't have the root structure in place to use all that water so that was my fault. Now my biggest plants are only about 50 days old at this point, so they dont need much water, but I dont like how the peat based mix like I am using now shrinks so much when it dries. I'd prefer something that doesn't hold water so long. Thinking of going to something with more Coco instead of peat, I know Coco wont shrink like that, but it can hold even more water than peat. Also, as much as most people dis-like MG mixs, I used them years ago and never had any edema issues, what are the real issues or reasons for disliking MG mixs?
All that being said, what is your favorite mix, store bought or homemade?
(available locally I have the usual stuff from big box stores, plus a local hydro store with Fox Farms, Pro-Mix and a few others)
Has anyone tried Pro-Mix HP? Still has a lot of Peat, but supposed to be great for indoor growing and drainage.
Thank you all in advance for your input.