Hi, mea. For the melons, each 5-gal. bucket has a large hole in the bottom through which the roots can grow down into the soil below, sort of like a raised bed. Theoretically it will work along the principles of square foot gardening -- "intense" spacing but with much attention paid to ensuring sufficient nutrients and moisture. The recommended space is one square foot per melon plant. Anyway, I'll report back on them after the season is finished. The rest of the veggies that need support are tomatoes in self-watering grow-buckets.

At this stage, it's pretty much impossible to tell what it is.. all that can be said is that is probably a cucurbit, a large family that includes pumpkins, squash, zucchini, watermelon, canteloupe, honeydew, cucumbers, etc. I hate to tell people they can't do things.. but in this I'll have to make an exception. Even in my zone 9a, it's just too late to plant these. No practical amount of growlights could ever provide enough light for a cucurbit, and if you managed to somehow keep them alive through the winter, they would almost certainly die when transplanted (they hate being transplanted, unless it's done when they're very young and with minimal root disturbance. The only example I've of indoor grown cucumbers is when someone allowed the vine itself to wrap around the actual bulbs and casing of a fluorescent tube work light fixture (T8, with four tubes). Even then, he only got 4 cucumbers. Plant these in the spring, after your "last frost date", or 1.5 to 2 weeks before in pots for transplanting. Btw, there's really no such thing as a green thumb... learning and practice.

lol you need root comb. When plants need water the soil be dry and loose take out container root ball put four finger under and dance finger soil should fall away do this just above a pieces cardboard so plant have short fall and seperate you have 2 minutes to get plants planted and transplant water them use bottle water so have right ph water uptake be best if ph 6.5 to 7.0 there no need add shock to plants with tap water. Best time of day to work this is mid afternoon so water needs of plant low until next day about 10 a.m.. Direct seeding good on melons there not going to grow until hot. Seed planting take 3 seed put together long ways on table take tape measureer that length that how deep plant one seed in soil. Alittle sprinkle of 18-46-0 fertilizer is good popup fertilizer for seedling vegatables and it do wouders for onions after begin growing add 18-46-0 table spoon level each plant.

Since you are in zone 2 your problem with melons may well be cold soil. You can help that some by putting black plastic down around the melons and cover that with clear plastic. Once the melons cover that it won't help much. You may need to raise the temperature in the greenhouse. Your nights even in summer may be way to cold for melons. How warm is your soil?