Wood Poppy, Wind Poppy and Celandine Poppies are small genera with only few species in China (Stylophorum lasiocarpum and Stylophorum sutchuenense), Japan (Hylomecon japonica) and North America (Stylophorum diphyllum from deciduous forests in Ontario and south to Kentucky and Stylomecon heterophylla in California) where they grow in humus rich, slightly moist soils in open spots in woods. Hylomecon and Stylophorum are herbaceous perennials with light green, lobed to divided leaves and showy bright sun yellow flowers in spring, Stylomecon heterophylla is a rare annual, fast growing species which readily selfsows under appropiate conditions. All are easily cultivated in any humus rich, well drained, always slightly moist soil in a preferably partially shaded spot.
Sow seeds flat on any humus rich, well drained, always slightly moist soil. Keep pots in a partially shaded, protected spot outside. Carefully transplant the fleshy rhizomes from Stylophorum species in mid or late summer as soon as plants go dormant or as soon as Stylomecon heterophylla seedlings are strong enough in mid spring.
All are USDA Climate Zone 6.
20 seeds per package.