I am using Sunshine Mix #4 , it is so porous I will have to go out every 3-4 days to water. Well I thought about that and came up with a simple solution to help water stick around a little longer in the holes without using bags. This morning I purchased a bale of Sunshine Mix #4 , half bale of neutral Vermiculite and half bale of neutral Perlite. Since I live in an apartment I took all the goods to my parents house and used a 110 Liter tough box to make enough mix for 12 more plants that I dropped off last night in the bush. That is 9 plants outplanted already and 12 in the bush in pots still. The 12 will get my porous yet water retaining mix and those holes will be fed slightly less nutrients at feeds. Why? Well when you use an amendment like Vermiculite not only does it hold on to water longer but also stretches out full use of nutes , hangs on to them and allows plants to devour without running most off feed and water after feed n water. Verm is awesome stuff but can promote moldy roots so keep eyes peeled.
I'm looking to get some 10 feet monstahs this summer. 15 years, eh? I heard that your season in Colorado is quite short. Still, you can force them to flower.
RH is crazy, but at least you don't have to haul water for a very long time! Hmmm, tomorrow I need to make a bloodmeal run 
