Caltha palustris
Marsh Marigold (American Cowslip) - Caltha palustris.
Location: requires open areas with sufficient moisture. In this case, they bloom most abundantly. But they also endure partial shade.
Soil: since marigolds in nature are plants of damp places, i.e. need rich, well-drained soil. With constant watering, it can also grow in dry places.
Reproduction: freshly harvested seeds ripening in June. When sown immediately after ripening, they germinate at the end of summer, in the case of sowing before winter, shoots appear in the spring. During spring sowing, phased stratification is recommended: about a month at 10 degrees, then two months at 18-20 degrees. Germination occurs at 18-20 degrees. Seedlings bloom in the second or third year. You can propagate marigolds by dividing the bush (preferably in autumn). Can be propagated by cuttings throughout the growing season.
Usage: indispensable near water bodies, in damp places. One of the earliest flowering coastal plants in which the foliage grows and remains quite decorative all summer. When decorating the banks of decorative reservoirs and streams, marigolds can be successfully used, creating juicy bright yellow spots both in clean plantings and in the vicinity of other plants. It is advisable to select species that are combined according to ecological needs, which complement each other in terms of flowering, color of flowering and vegetative plants.

Eng.: Marsh Marigold, American Cowslip, Marsh-Marigold, Yellow Marsh Marigold. Bot. syn.: Caltha minor Mill.