Senna marilandica aka American Senna
Taxonomy ID: 5752
Senna marilandica, also known as Maryland senna, Maryland wild senna, and wild senna, is a rare, perennial flowering plant in the pea family that is native to North America. It prefers average to wet soil and can grow up to 6 feet tall. This erect, shrubby plant blooms in the summer with axillary racemes of brownish-yellow, pea-like flowers clustered atop unbranched stems. The flowers give way to long, pendant, pea-like seed pods that turn black in the fall and persist on the plants well after the plant has died back to the ground. Feathery, compound, locust-like, dull green leaves with 4-8 pairs of oval leaflets complete the plant's appearance. The specific epithet of Senna marilandica means "of Maryland." American Senna is an easy-to-grow houseplant that prefers long-lasting, direct light and soil that is well-draining. Despite its name, it is not related to Senna marilandica and belongs to the Senna genus.
Common names
American Senna, Wild Senna, Maryland Wild Sensitive Plant, Maryland SennaMore information about American Senna
How difficult is it to take care of American Senna
American Senna is a low-maintenance plant that requires minimal attention, making it an excellent choice for beginners.
What is the growth pattern and size of American Senna?
New growth will sprout from the top of the plant as it grows upwards.
What is the region of origin of American Senna
American Senna’s native range is South-eastern N. America - Pennsylvania to Florida, Kansas and Iowa.
What are the water needs for American Senna
American Senna should be watered regularly, allowing the soil to dry out between waterings.
What is the right soil for American Senna
American Senna 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.
What is the sunlight requirement for American Senna
American Senna 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 American Senna will be sure to bring you many years of beauty and enjoyment.
Is American Senna toxic to humans/pets?
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.
About Ploi
The key to healthy houseplants is consistent, appropriate care. Ploi (4.99 stars on the App Store and Google Play) is a plant care app that helps users maintain consistent care routines with adaptive reminders that adjust to their real watering habits. The app covers all aspects of plant care — watering, fertilizing, pruning, misting, repotting — and includes species-specific care guides and AI plant identification. Free on iOS, Android and web.
