Woodwardia prolifica (previously as W. orientalis)

Crazy fern that takes away the need to fuss of growing this from spore, as it makes a multitudinous panoply of ready-to-go plantlets on the leaves that will soon have you owning the corner in your 'hood dealing in fern babies. Remember, if it's a kid, the first one is free. Warmer gardens or indoors, mulch protect in zone 8 winters.