Plate No. 17

Queen of the Night

Epiphyllum oxypetalum

"A single night, a single flower"

Native to

Tropical forests of southern Mexico and Central America

Botanical illustration of Queen of the Night
Epiphyllum oxypetalum — drawn from life
History

A brief account

An epiphytic cactus with flat strap-like stems, the Queen blooms only at night and for a single evening, releasing an almost overpowering perfume. In parts of India and China the bloom is a celebrated event, awaited with friends and tea.

How to care for

Queen of the Night (Epiphyllum oxypetalum) grows best when its natural cycle of strong light, freely draining soil and measured watering is respected. Give it bright indirect light. avoid harsh midday sun. Water it according to its seasonal needs: keep evenly moist in growth; reduce in winter. Plant it in loose orchid-and-cactus mix with bark and perlite. A container with an unobstructed drainage hole is essential, because moisture lingering around cactus roots can quickly lead to rot. Keep its temperature needs in mind: 16–28°c. frost-tender. During active growth, check the compost before watering rather than following a rigid calendar, since heat, light and pot size all change how quickly it dries. Reduce watering during cool or dormant periods, keep the plant well ventilated, and wait until the growing medium is dry before watering again.

How to propagate

Stem cuttings root easily after a brief callous. Take material from healthy growth with a clean blade or tongs, then leave the cut surface in a dry, shaded place until it forms a firm callus. Set it into a dry, gritty medium and introduce water sparingly only after roots begin to develop. Young cacti are especially vulnerable to excess moisture. Use a small pot with excellent drainage, provide bright filtered light while roots establish, and move the new plant gradually into the light, temperature and watering conditions preferred by a mature Queen of the Night.
Cultivation

Quick tips for care & planting

Light
Bright indirect light. Avoid harsh midday sun.
Water
Keep evenly moist in growth; reduce in winter.
Soil
Loose orchid-and-cactus mix with bark and perlite.
Temperature
16–28°C. Frost-tender.
Propagation
Stem cuttings root easily after a brief callous.