Is it cheaper to buy a greenhouse kit or build your own?
Conclusion. Deciding whether it’s cheaper to build or buy a greenhouse hinges on your budget, time, and skill level. Building a greenhouse may save money if you already have tools and experience, while buying offers convenience and often includes warranties and professional support. Choose the right greenhouse type – A hoop house, cold frame, or recycled window greenhouse are the best low-cost options. Use affordable and sustainable materials – Look for PVC, wood, repurposed glass, and 6-mil plastic sheeting to keep costs low.
Can plants survive in an unheated greenhouse?
It’s definitely possible to grow without heat if you use cold frames and/or hoop tunnels inside the greenhouse. In my climate, venting the heat on sunny days would be essential, even on cold days. Imagine a car parked in the sun all day. How much sunlight is ideal in a greenhouse? For optimal plant growth, a greenhouse should receive 5 to 6 hours of direct sunlight per day. This is especially beneficial in spring and autumn. But in summer, temperatures can rise quickly, your greenhouse might turn into a sauna.The ideal summer temperature for a greenhouse is 75-85° F during the day and 60-76° F at night. In the winter, this changes to 65-70° F in the day and 45° at night. The best way to control the temperature is through ventilation, shade cloth, and heating.On a still, cold night, an unheated greenhouse typically stays 2-5C warmer than outside. On windy nights, that margin shrinks because moving air strips heat from the glass faster. By dawn, the temperature inside an unheated, uninsulated greenhouse can be only 1-2C above the outside air.