Why do indoor growing temps (70-80) have to be lower then outdoor growing temps

Whats up guys?

My question is this:

"why do I need to be so careful about temmps in my grow room when I have done an outdoor grow up where i know temps sat around 80-90 on average."

Spanks!

The plants will grow in 90 degree temps, but growth will be stunted at anything above 85. 70 to 80 degrees is optimum, with good air circulation.

Plus, outdoors you have more fresh air with higher CO2 levels, increased CO2 levels can allow you to grow at slightly higher temps without the growth stunting. If your grow room has a significant air exchange, you can get away with your temps being on the higher end without to much of a problem.

Other than the sun's light and space....most of the rest of outdoor growing is less ideal than indoor. But the power of the sun and the outdoor space on ones property is makes it worth it.
That's why greenhouse is a step up from outdoor. Controlled environment, but free sun.

THanks yall!