Planting, Growing & Caring for Queen of the Night Flower

The Queen of the Night flower originates from southern Mexico and the tropical rainforests of South and Central America. Mature plants can reach up to 10 feet tall when grown outdoors. This tropical succulent is often referred to as climbing cacti or orchid cacti.

In its natural habitat, the Queen of the Night grows as an epiphyte, nestled within the branches of trees. As it matures, it sends out long shoots that cling to nearby trees, allowing it to spread. These shoots, or stems, have root-like structures that support the plant and enable it to move across the canopy in search of better light.

There are dozens of species and hybrids of varying shapes, colors, and sizes. They typically have flat, long, non-spiny trailing stems. With proper care, they produce bright, fragrant, night-blooming flowers in the spring and summer.

In the wild, these plants grow on tree trunks or branches rather than rooting in the ground. They absorb nutrients and moisture from the humid environment around them.

Light

The Queen of the Night cactus needs light to grow. Direct sunlight in the morning is essential for blooming, but it should be kept in indirect light afterward. This plant requires at least six hours of bright indirect sunlight. A south-facing window is ideal for indoor growth. Outdoors, it should be placed in dappled shade where it can receive enough morning sun.

Soil

This plant thrives in well-drained, airy soil that can hold moisture and is slightly acidic (pH 5.5 to 6.5). Avoid dry soil and enhance the mix with peat moss, perlite, and orchid bark. Sandy soil is also suitable.

Water

The Queen of the Night flower is resilient and can tolerate periods of drought. During its active growing season, water it when the top two inches of soil are dry. When potted, water slowly until water flows out of the bottom, then remove any excess water from the tray. Water once or twice during the growing season in spring and summer, and less frequently in fall and winter.

Temperature and Humidity

This plant thrives in temperatures between 68-95°F. Temperatures below 50°F or above 95°F can slow its growth and induce dormancy. It prefers normal humidity levels found in most homes (40-50%). In dry climates, increase humidity by placing the plant on a tray of water-filled pebbles or misting it regularly.

Fertilizer

Fertilize the Queen of the Night flower once a month during its active growing season. Use phosphate-potassium fertilizer before and after blooming, and nitrogen fertilizer during seedling growth. Use low-concentration fertilizers to avoid over-fertilization, which can cause yellowing and slow growth.

Pruning

Prune the plant annually after blooming to remove yellow leaves, dead flowers, or stems and to shape the plant. Use clean, sharp pruning shears. Propagation can be done through stem cuttings, which can be rooted in water or soil.

Propagation

To propagate the Queen of the Night flower:

1. Cut the Stem: Cut a 4-6 inch stem from the parent plant.

2. Prepare the Cutting: Remove leaves from the bottom half of the stem, dip the cut end in rooting hormone, and allow it to callus in a cool, dark place for a couple of days.

3. Plant the Cutting: Place the cutting in a well-draining cactus or succulent potting mix.

4. Care for the Cutting: Water sparingly and keep it in a warm, humid area. Covering with a plastic bag can help maintain humidity.

Common Pests and Diseases

The Queen of the Night flower is generally resistant to pests, but mealybugs and spider mites can cause wilting and curled leaves. To prevent infestations, maintain proper hygiene and inspect the plant regularly. Diseases such as anthracnose, powdery mildew, and stem rot can occur, so practice good care habits, including proper watering and fertilization.

Common Problems

- No Blooms: Ensure appropriate nitrogen levels and avoid harsh direct sunlight.

- Wilting: Check the soil medium and ensure it retains enough moisture.

- Yellow Leaves: This can be due to natural aging or nutrient deficiency. Use water-soluble fertilizer, organic pellets, or nutrient-rich compost.

Toxicity

The Queen of the Night flower is non-toxic, making it safe for kids and pets. However, ingestion in large quantities can cause gastrointestinal symptoms like nausea and vomiting.

Botanical Name: Epiphyllum oxypetalum  

Common Names: Queen of the Night, Lady of the Night, orchid cacti, leaf cactus, climbing cacti, Dutchman’s pipe cactus  

Family: Cactaceae  

Plant Type: Evergreen, cactus  

Hardiness Zones: 10-11 (USDA)  

Sun Exposure: Partial shade  

Soil Type: Well-drained  

Soil pH: 5.5-6.5 (Acidic)  

Height: 2 to 10 feet tall  

Bloom Time: Spring, summer  

Flower Colors: Red, white, yellow, orange, purple, pink  

Native Area: Central and South America