Greenhouse guide: 13 incredibly useful tips. If you want the luxury of an in-greenhouse mains supply, some plumbing is needed. A greenhouse roof harvests a surprising volume of rainwater, so store it in butts. Watering techniques range from devotional use of a watering can to a semi-automatic system if you’re away from home a lot.- Telegraph
Spraying epsom salt on plants boosts magnesium supply to plants and increases yield. GARDEN HACK: How to start maintaining your garden. Spraying 1 table spoon of epsom salt mix with 4 litre of water twice with 10 days gap could be used for good results. Use for growing tomatoes, peppers and roses
diy hoop house this site has .pdf instructions - we made one (15x20) for a few hundred. There is a greenhouse supply place in Aurora (south of Canby) you can get the 5year plastic at. Get an off cut, cheaper!