Caltha Palustris

Description

Caltha Palustris, commonly known as marsh marigold or kingcup, is a perennial herbaceous plant that belongs to the Ranunculaceae family. It is native to Europe, Asia, and North America and can be found growing in wetlands, along streams, and in other water bodies.

Taxonomic Information

Appearance

Marsh marigold grows up to 30 cm tall and has shiny, dark green, heart-shaped leaves that are 3-7 cm wide. It produces bright yellow, buttercup-like flowers that are 2-5 cm in diameter and bloom from March to May. The flowers have five to nine petal-like sepals and numerous yellow stamens. The plant also produces small, round, green seed pods that turn brown as they mature.

Care Guide

Marsh marigold is easy to care for and requires minimal maintenance. Here are some tips:

• Water: Marsh marigold prefers moist soil and can tolerate standing water. Water regularly to keep the soil moist.
• Fertilization: Marsh marigold does not require fertilization. If desired, use a balanced fertilizer in the spring.
• Soil: Marsh marigold prefers neutral to slightly acidic soil that is rich in organic matter. Use a well-draining soil mix.
• Sunlight: Marsh marigold prefers partial to full shade and can tolerate full sun in cooler climates.
• Hardiness Zones: Marsh marigold is hardy in USDA zones 3-7.

Common Pests & Diseases

Marsh marigold is generally resistant to pests and diseases. However, it may be susceptible to root rot if grown in poorly drained soil. Here are some common pests and diseases:

• Aphids: These tiny insects can suck sap from the plant and cause stunted growth. Use insecticidal soap to control them.
• Slugs and Snails: These pests can munch on the leaves and flowers of the plant. Use slug bait or copper strips to repel them.
• Root Rot: This fungal disease can be caused by overwatering or growing in poorly drained soil. Remove infected plants and improve drainage to prevent it from spreading.

Habitat

Marsh marigold is commonly found growing in wetlands, along streams, and in other water bodies. It prefers moist soil and can tolerate standing water. It is native to Europe, Asia, and North America and can be found growing in a wide range of habitats, from sea level to high elevations.

Question and Answer

Q: Can marsh marigold be grown in containers?
A: Yes, marsh marigold can be grown in containers as long as the soil is kept moist and the container is not allowed to dry out.

Q: Can marsh marigold be propagated by division?
A: Yes, marsh marigold can be propagated by dividing the plant in the spring or fall.

Q: Is marsh marigold poisonous?
A: Marsh marigold is not poisonous. However, it can cause skin irritation in some people, so wear gloves when handling the plant.

Q: Can marsh marigold be used for medicinal purposes?
A: Marsh marigold has been used in traditional medicine to treat a variety of ailments, including rheumatism and digestive disorders. However, it should not be consumed without consulting a healthcare professional.

Related Plants

• Caltha leptosepala
• Caltha natans
• Caltha palustris var. palustris
• Caltha palustris var. radicans

References

• Missouri Botanical Garden. (2021). Caltha palustris. Retrieved from https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=282867
• Royal Horticultural Society. (n.d.). Caltha palustris. Retrieved from https://www.rhs.org.uk/plants/16086/caltha-palustris/details
• The Plant List. (2013). Caltha palustris. Retrieved from http://www.theplantlist.org/tpl1.1/record/kew-2698305