I hear that. I wanted to grow just a couple of pie pumpkins. Planted three mounds in a bin of compost three times before the weather cleared enough for a planting to sprout. Around mid-July a volunteer pumpkin plant started up in this year’s compost pile and is now the only plant to survive the two mild frosts I’ve had. No time to mature a fruit though.
Thing is, between regular store-bought plants and volunteers, I ALWAYS go volunteers, whenever possible. Just harvest the seeds and re-plant in the spring.
Volunteers show they have the right genetics to grow in your (or my) conditions.
There are a few exceptions, like potatoes, which I would not recommend.
Happy planting!!!