Thelypteris palustris aka Marsh Fern

Taxonomy

Thelypteris palustris, also known as the marsh fern or eastern marsh fern, is a deciduous fern species native to eastern North America and Eurasia. Its preferred habitat is marshy areas with full sun exposure, as indicated by its species epithet "palustris," meaning "of the marsh" in Latin. This fern has light green upright fronds that can reach a height of around 50cm. The fronds are finely divided and may have a slight curve or twist. In addition to its natural habitat, Thelypteris palustris can also be grown as a houseplant. When grown indoors, it thrives in long-lasting, direct light and should be placed within one foot of a window. Well-draining soil is recommended for this fern, and regular repotting when it doubles in size eliminates the need for additional fertilizers. Thelypteris palustris belongs to the Thelypteris genus and is native to North America, China, and Japan. One interesting fact about this fern is that it serves as the exclusive host plant for Fagitana littera, a moth species commonly referred to as the marsh fern moth.

Common names

Marsh Fern, Eastern Marsh Fern, Meadow Fern

How to care for Marsh Fern

Difficulty

Marsh Fern is a low-maintenance plant that requires minimal attention, making it an excellent choice for beginners.

Soil

Marsh Fern 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

Marsh Fern requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Marsh Fern will be sure to bring you many years of beauty and enjoyment.

Toxicity

Ploi does not possess verified information regarding the toxicity of this particular plant. In the event that you, a member of your family, or a pet ingests plant material with an unclear toxicity level, it is highly recommended to seek the advice of a medical professional.

Fertilizer

The Marsh Fern should be transferred to a new pot once it has increased in size two-fold, or on an annual basis, whichever occurs earlier. Replacing the soil with fresh potting soil containing all the necessary nutrients, is sufficient enough to support the growth of the plant, thus avoiding the need to use fertilizer. It's important to note that plants derive their energy from the sun and not fertilizer.

Growth-pattern

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


More info:
Wikipedia