Marsh Marigold Caltha palustris Height: 8-12 in. Width: 8-12' Light: Partial Shade/Full Shade  Soil: Any good garden soil. Moisture: Medium to moist  Propagation: By seed, or division Spacing: 8-12 inches apart Bloom Season:  Early Spring Flowers: Yellow 1" Nearly round leaves are heart shaped and have dentate margins.  Waxy yellow buttercup like flowers are produced in early spring.  Usually grows 1 - 1.5 ft. in shallow water up to 4 - 5 in. deep or in soggy  soil around the pond or stream. Is notorious for going dormant during the summer when placed in full sun in hot summers.  When in shady area or shaded by other plants as they grow it will flourish.  Bright yellow 1" flowers above mounded clumps of glossy rounded leaves. Best grown in soil rich in organic matter with an assurance of even moisture. Hardy zones 3 to 7.