Perennial Plant Care Guide - Peony, Phlox, Rudbeckia, Salvia
Peony To control weeds and retain moisture, apply a thin layer of compost each spring, followed by a 2 inch layer of mulch. These plants need watering during the summer if rainfall is less than 1 inch per week. Tall varieties can be kept upright with a stake. After the first killing frost, cut stems