Why grow outside in Illinois?

Every indoor grower eventually looks at their electric bill and wonders. The answer is: yes, you can grow cannabis outside in Illinois. And for a lot of people, it’s better.

The case for outdoor

Sunlight is free. A 1000W HPS runs you roughly $100–$150 per season in electricity. The sun is free, and on a clear July day it’s putting down more usable light than any lamp.

The plants are bigger. Indoor plants cap out at whatever your space allows. Outdoor plants cap out at whatever the sun and the season allow — which, in northern Illinois, is considerably more than five feet.

The terpenes are better. This is contested, but most growers who’ve done both will tell you outdoor plants smell different. The stress of wind, temperature swings, and real UV light does something you can’t replicate in a tent.

It’s less work. An indoor grow is a daily job. An outdoor grow is a weekly one once it’s established.

The case against

Short season. In northern Illinois you’ve got from roughly mid-May (last frost) to mid-October (first hard freeze). That’s 150 days, and the last 40 of those are cold and wet. Strain selection matters more than anywhere else.

Weather. Hail, wind, thunderstorms. You don’t get to control the environment.

Pests. Spider mites, caterpillars, and deer are all real problems that indoor growers don’t think about.

Privacy and security. Outdoor plants are visible and smell. Your site selection matters for more than just sun.

Who outdoor is right for

If you have a sunny backyard, tolerance for weather risk, and you’re OK with one harvest per year instead of four — outdoor is a great answer. If you need control, indoor is still the move.

For most of my medical-patient clients, outdoor hits the sweet spot: they need five plants, they need them to yield, and they don’t want to pay a $200/month electric bill to do it.

Want help deciding if outdoor is right for your space? Book a discovery call.