Marigold Seeds – Swamp Caltha palustris

Bring vibrant color and natural charm to your garden or water landscapes with Swamp Marigold Seeds (Caltha palustris). Commonly known as Marsh Marigold in the United States, this perennial flowering plant thrives in moist soil and around ponds, streams, and wetlands. It produces bright yellow, buttercup-like flowers that attract a variety of beneficial pollinators, including bees and butterflies. Ideal for gardeners looking to add a splash of early spring color to shaded or wet areas, these hardy plants are low-maintenance and resilient in cool climates.

Features:

• Bright yellow, glossy blooms add vibrant contrast to water gardens and damp areas.

• Excellent for naturalizing around ponds, marshes, and streams.

• Attracts pollinators such as bees and butterflies.

• Hardy perennial that returns year after year.

• Easy to grow and maintain, ideal for beginners and experienced gardeners alike.

Specifications:

• Common Name: Marsh Marigold

• Scientific Name: Caltha palustris

• Plant Type: Perennial flowering plant

• Growth Habit: Clumping, upright

• Height: 12–18 inches

• Bloom Color: Bright yellow

• Sunlight Requirement: Full sun to partial shade

• Soil Type: Moist, rich, or boggy soil

• Water Needs: High – prefers wet or consistently damp conditions

• USDA Hardiness Zones: 3–7

• Planting Season:

  • Spring: March–May (ideal for germination)

  • Fall: September–October (for natural cold stratification)

• Blooming Season: Early to late spring (April–June)

• Germination Time: 14–30 days under moist conditions

• Spacing: 12–18 inches apart

• Lifespan: Perennial – returns every spring

• Uses: Water gardens, pond edges, rain gardens, and shaded wet areas