Nodding Onion Gardens

Native Plant Nursery

Where Wildflowers Grow

Columbia Station, Ohio, USA


Caltha palustris - Marsh Marigold

Ohio Native Plant - Natural Range

Caltha palustris

Visit the USDA Natural Resource Conservation Service  website to view the natural range of Marsh Marigold
Marsh Marigold blooming
Marsh Marigold blooming
Caltha palustris - seed before maturing
Caltha palustris - seed before maturing
Marsh Marigold seeds
Marsh Marigold seeds

Wildlife Significance - Marsh Marigold

Nectar & Pollen Attracts
- Flies, bees, Giant Bee flies, Syrphid flies, Halictid bees, honey bees and more

Seed Attreacts - Ducks game birds and is eaten by chipmunks and other small rodents.

Detailed Information - Visit Illinois Wildflower website

Seed Provenance -

Caltha palustris - Marsh Marigold Prairie Moon Nursery, Winona, MN - 2013 Nodding Onion Gardens 2015 to present

Marsh Marigold starting to bloom
Marsh Marigold starting to bloom

Cultivation Information - Marsh Marigold

Height - 1 to 2 ft
Flower Color - Yellow
Blooms - May - June
Sun - Full to Shade
Hardy Zone - 2 to 7
Soil - Moist to wet

Organic Material - Include compost or leaf much when planting, adding an additional amount later in the season. This protects the Marsh Marigold plant when it goes dormant early in the summer.

pH - 5.0 to 6.5

Family - Ranunculaceae Buttercup Family

Toxicity- Leaves in large quantities are toxic. However, several sources indicate that early settlers ate Marsh Marigold leaves early in the spring as a replacement for spinach. Considering, how difficult it is to locate this plant it seems wise to propagate it for environmental reasons and grow your own spinach.
Our Caltha palustris is expanding - 2018
Our Caltha palustris is expanding - 2018

Propagation Notes - Caltha palustris


Collecting seed

Place fresh seed in a sealed container (I save our small vitamin and spice jars) then store in the refrigerator until the time in which the stratification process needs to begin. Marsh Marigolds  require 60 days of cold, moist storage. Determine when you would like to begin planting seeds, then count back 60 days. This initiates the process of tricking the seed into believing winter is up them.



Using small jars to stratify seeds also works well, as they stack neatly in the refrigerator. For each package of seed add a tablespoon or two of vermiculite, moisten slightly.



Use a permanent marker to indicate seed name, date stratification began and expected date the cold, moist storage is completed.