Adanson's Monstera Monstera adansonii

The Swiss Cheese Plant is a tender, evergreen, herbaceous perennial climber that hails from the tropical rainforests of Mexico, Central America, and South America. In its native habitat, it uses aerial roots to attach itself to a large tree so it can climb upwards to have access to more sunlight. It is a popular houseplant and has large, medium to dark green, heart-shaped leaves that have unique oval holes. The holes in the leaves help sunlight to filter down the plant. Using a trellis or moss pole, an Indoors plant can reach up to 3 to 8 feet tall and 1 to 3 feet wide. It can grow 10 to 13 feet when grown outdoors.

This plant thrives in bright, indirect sunlight, warm, and humid conditions. Direct sun can cause scorched leaves. Moist, well-drained soil with a slightly acidic pH is preferable. Avoid cold drafts as well as temperature drops below 50 degrees Fahrenheit. The plant loves high humidity, and it may be wise to consider misting the leaves regularly or use a humidifier. It is hardy in USDA zones 10 to 12.  Besure to provide a stake, trellis, or moss pole in the middle of a container to give the plant a structure to climb upon.

The Swiss Cheese Plant is member of the Arum or Araceae family that also includes Calla Lily and Elephant Ear. Don't be confused by another plant that is sometimes called the "Swiss Cheese Plant," known as Monstera deliciosa. It  is a larger plant and has bigger leaves than Monstera adansonii. Monstera adansonii is a smaller plant and has fast growth rate.

This plant is toxic to humans and pets if ingested. Exercise caution when children or pets are nearby.  It is also recommended to use gloves when handling this plant due to the risk of contact dermatitis. The Swiss Cheese Plant is a very popular indoor plant and is used primarily used as a tropical ornamental.

Quick ID Hints:

• herbaceous perennial, evergreen, climber, vining habit
• large, medium to dark green, glossy, heart-shaped, perforated leaves resembling swiss cheese
• leaves can reach up to 18 inches wide in the wild, usually smaller when grown as a houseplant
• creamy white flowers can appear in the spring when grown outdoors

Insects, Diseases, and Other Plant Problems:  Monitor for spider mites, mealybugs, aphids, whiteflies, and scales insects. Overwatering can result in root rot. Avoid splashing water on the foliage and provide good air circulation to prevent leaf spots. Rust, powdery mildew, and blight can occur.