I have wintersown milkweed plants that I want to grow in pots this summer. Our summers can get very hot and humid.

For the few times I've attempted to grow plants in a big pot over the summer, I noticed the pot sides heat up a lot. I'm talking just big plastic pots with no insulation. The reason I need these pots is because my full sun spots are limited. One long side of my little greenhouse is a southern exposure and I thought I'd set the big pots along this side of the gh and take avantage of the sun. Shading the greenhouse would be a plus, as I doubt I'll be able to use it in the heat of the summer, even with the shade cloth on it.

My idea is to line the thin plastic pot SIDES with bubble wrap before adding the potting mix. For any of you who grow in large containers, do you think this might help keep the roots a bit cooler? The pots are probably 24 to 30 inch dia pots.

Any comments or suggestions will be deeply appreciated.

Mary