4" Swiss Cheese Philo

Swiss Cheese Philodendron – Care Guide

Overview

The name “Swiss Cheese Philodendron” is commonly used to refer to Monstera adansonii, although it's technically not a Philodendron, but a Monstera species. It earns its name from the oval to oblong holes (fenestrations) in its leaves, resembling Swiss cheese. With a trailing or climbing habit and easy-care nature, it’s a favorite for houseplant lovers — especially in hanging baskets or trained up a moss pole.

Key Characteristics

Botanical Name: Monstera adansonii
Common Names: Swiss Cheese Plant, Swiss Cheese Philodendron, Monkey Mask
Plant Type: Evergreen vining tropical aroid
Growth Habit: Trailing or climbing
Mature Size (indoors): 3–10 feet (trails or climbs)
Leaf Size: Up to 12 inches long with unique perforations

Light Requirements

Bright, indirect light is ideal
Tolerates moderate light, but will grow slower with smaller leaves
Avoid direct sunlight — can burn the delicate leaves

Watering Needs

Water when the top 1–2 inches of soil are dry
Keep soil evenly moist but not soggy
Reduce watering slightly in winter
Avoid letting it fully dry out — leaves may curl or crisp

Soil & Potting

Use a well-draining, chunky mix

• • Great mix: potting soil + orchid bark + perlite + a touch of peat or coco coir

Drainage holes are essential
Repot every 1–2 years as it becomes root-bound

Temperature & Humidity

Temperature range: 18–27°C (65–80°F)
Not frost-hardy — protect from temperatures below 12°C (54°F)
High humidity (50–80%) preferred

• • Use a humidifier or humidity tray for best results

Fertilizing

Feed monthly during spring and summer with a balanced liquid houseplant fertilizer
Slow down or stop feeding in fall and winter

Growth & Pruning

Can be trained to climb (using a moss pole or trellis) or left to trail in a hanging basket
Prune to control shape or encourage fuller growth
Wipe leaves occasionally to remove dust and allow photosynthesis

Common Problems

Yellow leaves: Overwatering
Crispy edges: Low humidity or underwatering
Leaf curl: Underwatering or too much sun
Pests: Watch for spider mites, mealybugs, and thrips

Toxicity

Toxic to pets and humans if ingested (contains calcium oxalate crystals)
Keep away from cats, dogs, and small children

Bonus Tips

Variegated versions exist (like Monstera adansonii ‘Albo’), but they are rarer and require more light
You can mix Monstera adansonii with other aroids like Philodendron or Pothos in grouped displays for texture variety