Paeonia lactiflora Koningin Wilhelmina

Place the Queen Wilhelmine Peony mainly in the sun. In southern regions you should provide partial shade, protecting it during the hottest hours of the day. Plant from September to May, except during freezing periods, in fertile and deep, humus-bearing soil that is moist but well-drained, to prevent the roots from rotting. Easy to grow, peonies require little maintenance. During planting, dig a large hole measuring 40 to 50 cm (16 to 20in) on each side and add potting soil, river sand, and peat. Place the collar at ground level. Do not overcrowd the plants to ensure proper air circulation. Keep the soil moist throughout the growing season with regular watering. Peonies are known to be homebodies, so you shouldn't move them after planting. (If you do they have to be divided, otherwise they won't flower for several years). From February to April or October to November, cut the foliage to ground level, taking care with the young shoots. Provide a stake to support the floral stems, and remove faded flowers during the season. Protect peonies from viruses, nematodes, and thrips larvae. Armillaria (honey fungus) can cause rapid plant death, and stem rot destroys shoots and flower buds.