The Marsh marigold
scientific name is Caltha palustris and is also known as caltha cowslip. Marsh
marigold belongs to the buttercup family (Ranunculaceae). Actually the marsh
marigold has no petals. Rather, each cluster of flowers is made of 5 to 9
sepals, which resemble petals, surrounding many stamens and pistils. The waxy
deciduous foliage is rich green and each of the leaf is heart-shaped,
kidney-shaped, or rounded with 2 lobes. You can sow the marsh marigold seeds in
the late fall or early spring.
Marsh Marigold Plants
Info
The botanical
name: The botanical name is Caltha palustris
The common names:
The common names are caltha cowslips, marsh marigold, cowslip, cowflock; in
Great Britain the plant is known as mollyblobs, mayflower, pollyblobs, may
blobs, water blobs, horse blob, water bubbles, gollins, and the publican.
The plant
type: The plant is perennial, herb, wildflower.
The mature size: The
mature size is 1–3 feet tall, 1–1.5 feet wide.
The sun exposure: The
plant prefers partial, shade.
The soil type: The plant
does well in loamy, moist soil.
The soil pH: Acidic
(6.8)
The blooming time: The
blooming time is spring.
The flower color:
Yellow.
USDA Hardiness zones:
USDA Three to seven.
The native area: The
plant is native to North America.
Plant toxicity: The
plant is toxic to humans and pets.
Marsh Marigold Plant
Care
Marsh marigolds plant
can easily be grown alongside other bodies of water such as streams, and the
plants are often the first pond plants to bloom in early spring. These
low-maintenance buttercup blossoms actually come up from April to June.
Furthermore, the marsh
marigold plants are pretty hardy, and pests don't really bother them much. Most
times the plant suffers from fungal diseases like powdery mildew and rust.
These can be easily taken care of with fungicides or milk spray.
Light requirement: The
plant will bloom consistently in part sun to full shade, an unusual feature as
most flowering plants for water gardens prefer full sun. For best results they
should be in a south-facing or west-facing direction. Find an especially shady
afternoon spot in zones six to seven, protecting the plant from extremely high
temperatures will actually welcome the plant to bloom into summer and maintain
healthy foliage.
Soil requirement: Give
the marsh marigolds plant a rich, moist, or boggy soil that is damp to fully
submerge in water. If you’re planting them in a rain garden, position it near
the center of the lowest spot.
Water requirement:
General, plant in a slow-draining area. Adding a glorious yellow aesthetic to
the edges of a pond or between the rocks near waterfalls, the marsh marigold
plant is native to marshes, swamps, stream margins, and wet meadows in
Newfoundland and Alaska south to Nebraska, Tennessee, and North Carolina.
Still, the marsh marigolds plant can survive drought by going dormant and
returning the following year.
Temperature and humidity
requirement: You can plant the marsh marigold in any moist or boggy area like
the woodlands, a rain garden, or near a body of water. Where summers are
extremely hot, or in areas of direct sunlight, the marsh marigold plants can go
dormant after blooming. Be expecting the foliage to wilt and die, and also look
forward to the following spring’s show.
Fertilizer requirement:
The marsh marigold plants don't really need much in the way of fertilizer, but
if you actually insist, you can fertilize with an all-purpose fertilizer.
Marsh Marigold
Propagation
One of the best ways to
propagate marsh marigold is root division. Make sure you wear a glove to
protect your skin from toxins from the plant. Divide in early spring when the
foliage emerges and then replant immediately and water the roots well.
Growing Marsh Marigold
Plant from Seed
Collect the marsh
marigold seeds off the plant towards the end of its bloom period and then sow
them when they ripen. Make sure you don’t allow them to dry out. Start
store-bought marsh marigold seeds in spring. It may take roughly 3 years for
the seed-started marsh marigolds to actually mature and start blooming.
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