If you’re a cold climate gardener, the ability to extend the season and enjoy early and late season greens while giving your warm season crops a little more protection is really needed. When my outdoor garden is still dormant in early April, the greenhouse allows me to produce an abundance of veggies like lettuce, arugula, spinach, kale, peas and cilantro. It also gives me a jumpstart on hot crops like tomatoes, peppers and basil. 

But if you’ve never grown in a greenhouse before, it’s sometimes hard to know where to start. That’s why I created this guide. Though many of the same principles that you apply to your outdoor garden can be practiced in the greenhouse, there are critical things to pay attention to in an indoor environment.