I've had good luck planting poke. I just scatter the seeds in good habitat.
My favorite wild edible, though, is ramps, and for years I've been transplanting bulbs in likely spots. Ramps are very, very slow to become established, but this spring it finally looks like my plots are all booming.
If you want to give it a try, collect seeds when they are hard and black (probably September), and plant them in moist, rich soil under hardwood trees. Anywhere you see trout lilies, May apples, or trillium growing in the shade of hardwoods is good habitat. Rake aside the leaf litter, press the seeds into the soil with your hand, and replace the leaf litter.
Growing from seed is slow, but takes very little effort and is the best way to build up big populations for future harvests.
In the south, seeds will germinate the next spring. In the north, germination takes an extra year. This is because the seeds require a warm period followed by a cold period to break dormancy.
To speed germination in the north, you can mix the seeds with moist vermiculite and store them in a Ziploc bag for 60 days at room temperature, then move the bag to the refrigerator for another 90 days to simulate winter. After this moist, cold period, sow seeds outside in spring. This will get you a year head-start.
Transplanting bulbs is more work but will reduce the time-to-harvest by several more years. Water them until they’re established.