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Princess of the Night 'Callianthus'

Selenicereus x callianthus

Family: Cactaceae (kak-TAY-see-ee) (Info)
Genus: Selenicereus (sel-ee-nih-KER-ee-us) (Info)
Species: x callianthus (kal-lee-ANTH-us) (Info)
Cultivar: Callianthus
Synonym:Cereus x callianthus
» View all varieties of Orchid Cactus
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Tropicals and Tender Perennials

Vines and Climbers

Cactus and Succulents

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Suitable for growing in containers


Unknown - Tell us


12-15 in. (30-38 cm)

15-18 in. (38-45 cm)

18-24 in. (45-60 cm)


USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade

Light Shade


Unknown - Tell us

Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer


Unknown - Tell us

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

From woody stem cuttings

Allow cut surface to callous over before planting

Seed Collecting:

Allow unblemished fruit to ripen; clean and dry seeds

Unblemished fruit must be significantly overripe before harvesting seed; clean and dry seeds

Properly cleaned, seed can be successfully stored


This plant has been said to grow in the following regions:

Lutz, Florida

Woodstock, Georgia

Gardeners' Notes:


On Mar 3, 2006, lophoman from Woodstock, GA wrote:

Only grows in a greenhouse over the winter months, Can be kept outside after danger of frost has passed or in a bright tempe controlled area of the house. Tends to get quite large, so it needs a big hanging basket, regular fertilizer or slow release is beneficial for this type of cactus. Since this is a tropical cactus, it will require regular moisture with a well draining type of potting soil(add perlite or pumice to the mix , not sand). I like to use a good quality soil from the garden center.


On Apr 4, 2003, gospellady from Chocowinity, NC wrote:

The size and beauty of this plant's flower is well worth the years it takes to come to flowering. It flowers once yearly but lasts only a very short time, sometimes just one day at full size. The size of the bloom is so awesome, up to 12 inches! It blooms in the fall around mid September.
The plant prefers full sun in the times of the day when the sun is not as powerful, early morning and late afternoon. Direct full sun can damage the plant. The scent is so intoxicating and fills the room. It has been known to grow up to 15 feet.
Plant is not toxic and is used medicinally in extract for angina, edema, rheumatism, kidney congestion, nervous headache. It is a tonic herb that stimulates the heart. Needs temps above 50 degrees (f).


On Nov 7, 2002, EpiBase wrote:

This is the hybrid between Selenicereus grandiflorus and Selenicereus pteranthus.