Now that plants are finally popping, take a good, hard look at your garden. Got too many hostas and not enough coneflowers? Come to the Greengirls plant swap to refresh your mix.

From 10 a.m. to noon on May 31, the Star Tribune’s garden bloggers will be hosting a cash-free plant swap. Our marketplace will be the small park across the street from the Star Tribune building (425 Portland Av. S. in downtown Minneapolis).

Here’s how it works: Bring whatever you have to share — divisions of plants from your garden, extra seedlings or seeds, containers, garden tools, books or other supplies. If you can strike a deal with a fellow green-thumb, you’ve got a trade. We’ll also be handing out gardening calendars and door prizes (while supplies last) and will provide free parking.

Of course, the Greengirls will be on hand to bemoan our late spring and answer gardening questions. So divide your overgrown plants, round up those extra seedlings and join us, rain or shine.