Pumpkin basics - do vines need to root?
1st time pumpkin grower, and 1st time forum user! I'm planting a few pumpkins this week (late May) - hope to be ready by Halloween (or Thanksgiving). Growing Connecticut Field, and Spookie varieties. I've read a little online, and trying to generally follow the advice. On our property, the best, sunny place to do this was near our house. We have very large "flower beds" in front which we've never planted... just large (20' x 40') sunny beds, which we've covered with weed blocker, and a few inches of hardwood mulch on top in some areas, decorative gravel in others. Here, I moved the mulch aside, cut holes in the weed blocker, tilled the soil deep, added some high quality topsoil, and fertilizer to each hole, and created 5 mounds about 3 ft across and 1 ft high. But 90% of the area is still covered by weed blocker (and mulch).
My novice question: Will pumpkins grow here? I've read that you can grow near sidewalks, etc... just train the vines over the pavement... but do the vines need to take root farther away from the mound? Do I need to open up more "bare soil" for that to happen, or can they get all the nutrients they need from the roots in the mound?