For the northern hemisphericentric, temperatocentric, in the group -
You been out digging?
I have tomatoes in protected chambers (commercially called "wall-o-water) which really do seem to warm the soil and protect the plants, for a head start. They are all seedlings I started at home.
We finished off, our first spinach. lettuce, mesclun, radishes, scallions. The scallions are cheating - they are a multiplier onion that is planted in the fall, so there are plants even before the soil can be worked. We've been using chives for potatoes.
This year we are trying the "potato-in-a-barrel" method. We planted starts in a half-wine barrel, just filled to 6 inches. Then as the plants grow, more compost is added, until it's filled to the rim. This is supposed to result in unbeleivably productive plants. We'll see if it's unbelievable.
Today I planted zukes and cucumbers in little pots. I'll plant them outside when they get one set of true leaves. We have a relatively small space, so the zukes are bush-type and the cucumbers will be grown vertically, which worked well before.
We are also growing peppers and eggplants in half wine barrels. A neighbor left the barrels out to give away, so we got them cheap (free). By growing raised and out of the garden bed, Im hoping they will be warmer, so produce earlier and better. Our cool summers make for a challenge with tropicals such as peppers and eggplants. A wooden box would work as well. I think the wood sides keep the soil temperature more stable, compared to plastic.
So... any tricks of the trade? New varieties? New adventures in the dirt?