Can outdoor plants get heat stressed from the sun?

I am a Los Angeles, California area grower and this summer was a blazer. For the entire month of August, the tempeture never got lower than 88 degrees. We had about 10 days in a row of triple digit temps. Can this kind of heat affect an outdoor plant? I water almost every day or at least every other day.

At least in Cali I've never seen it. Been through weeks of average highs in the 105 and higher range in the past with grows, and as long as they get enough water, they love it

Yes they can just as they can from artificial light.

No that is wrong. as soon as the temp goes over 90 the plant stops growing, especially if the soil is hot also, watering when hot can bring mold, have to water early morning

Victor217 said:

No that is wrong. as soon as the temp goes over 90 the plant stops growing, especially if the soil is hot also, watering when hot can bring mold, have to water early morning

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Untrue on all counts. Plants grow fine in one hundred degree temps. Watering when hot will not bring mold. In the past during hot spells I'd water in the morning and again in the afternoon because they'd start to wilt.

Only thing that would cause mold is if you get lots of rain and live In a high humidity area. For the most part, California heat is very dry.

Artificial lights can burn plants if they are too close to the plant. The sun, at least in Cali, won't do that

the only times ive had this happen is when i bring indoors plants outside, the plants take some time getting used to the new environment and sometimes it might be more light then they are used to and the leaves can lose their colors.

indoors you are growing in a enclosed area (a room or a tent) and without proper ventilation and air circulation heat and stale air becomes an issue. outdoors you have wind and fresh air all the time to draw away heat even if the temps go up to 90-100 degrees. im around the same area as you and im dealing with the exact temps you are describing and my plants are thriving. indoors you are growing in a controlled environment where the grower has to do all the controlling, if you let one thing go the whole system can go out of whack. outdoors you have a self regulating system where you let mother earth take care of the environment. all you really have to worry about is keeping them hydrated.

also, i had to water once a day sometimes twice a day during the hottest parts of summer and had no issues with mold. the plants were drying out too fast for mold to form.

try raising your sun a few thousand miles.