I recently found ground cherries growing wild on my property and I want to put them in beds and harvest seeds from them.
How and when should I transplant them?
These plants won't like their roots disturbed. Starting from seed next year might be easier. If you want to transplant mature plants, here are a few tips that might make the survival rate higher:
Look for an overcast week, where there will be rain, and little to no direct sun for a period of time. If the sunny weather is relentless, you can build a small shading frame with slats or cheesecloth, to cut back on direct lighting while they recover.
Take as large a rootball as possible for each crown. The fewer cut roots the better. Try not to crack/break the rootball.
Plant in loose, well drained organic topsoil. Hard soil like dry clay can cause moisture pockets when planting, or retard root growth.
Water heavily after planting. Get the soil good and wet. Water again when the top layer is dry.
Mulch with 2-3" of organic matter (such as shredded bark, mushroom soil, or chopped leaves).
Once you see new growth, you can fertilize.