Caltha leptosepala aka Howell's Marsh Marigold

Taxonomy

Caltha leptosepala, also known as the white marsh marigold, twinflowered marsh marigold, or broadleaved marsh marigold, is a perennial species of flowering plant in the buttercup family. This plant is native to western North America, ranging from Alaska to New Mexico, and can be found in wet mountain habitats in alpine and subalpine regions. There are two distinct types of Caltha leptosepala, one growing in the interior and the other along the Pacific coast and coastal mountains, although they are not always treated separately. This deciduous and perennial plant is a marginal water plant that can reach a height and width of up to 30cm. It features glossy, dark green, heart-shaped leaves and produces beautiful white flowers with yellow centers that can be up to 4cm across. These flowers typically bloom in the spring. One particular variety of Caltha leptosepala is Howell's Marsh Marigold, which is a rare houseplant. To ensure its optimal growth, regular watering is essential. It thrives best in long-lasting, direct light and should be positioned within 1 foot of a window. Howell's Marsh Marigold prefers well-draining soil. Like other members of the Caltha genus, this plant is native to Western North America.

Common names

Howell's Marsh Marigold, Sulphur Marsh Marigold, White Marsh Marigold, Twinflowered Marsh Marigold, Broadleaved Marsh Marigold

How to care for Howell's Marsh Marigold

Water

Howell's Marsh Marigold should be watered regularly, allowing the soil to dry out between waterings.

Soil

Howell's Marsh Marigold loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

To ensure optimal growth, the Howell's Marsh Marigold prefers bright indirect light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

Toxicity

No verified data on the toxicity of this plant exists within Ploi's records. Should you, someone in your family, or your pet ingest plant material with an unknown toxicity level, it is recommended to seek medical advice.

Growth-pattern

New growth will sprout from the top of the plant as it grows upwards.

Region of origin

Howell's Marsh Marigold’s native range is Western N. America - Alaska to Oregon.


More info:
Wikipedia