Specialty Gardening: Nasturtium and Nicotina will grow in 1/4 inch of dirt., 0 by Jaywhacker

Jaywhacker wrote:
Each year when I plant and start watering these stacked containers, various little plants sprout and grow in the tiny smidgen of dirt caught at the edge of this board on top of the the weed barrier cloth. The roots do NOT grow through the weed cloth, just form a little mat and suck their moisture from the ground beneath. It is surpising how long they will live when I have stopped watering the stacks in the winter, with their only source of moisture being sucked up thru the weed cloth. Here is the nicotina.