Selenicereus grandiflorus

queen of the night
Queen of the night cactus cherished for large, fragrant white night-blooming flowers appearing in late spring to summer. Climbs, clings by aerial roots. Nice in pots for seasonal show.
synonyms Selenicereus urbanianus, Selenicereus x callianthus
height 3–20ft
width 1–15ft
tolerates Drought, Heat, Pots, Salt
water
needs		 Low – Moderate
water
info		 Appreciates completely drying out between waterings in winter, but grows quickly with average water during summer when temperatures rise. Good drainage is a must for this epiphytic species. Protect from winter rain if possible.
hardy
to		 32F
exposure Part Sun – Full Sun
indoor
outdoor		 In or Out
drainage In Ground: Cactus Mix, In Pots: Cactus Mix, Requires Perfect Drainage
fertilizing All Purpose 1/2 Strength
origin Caribbean, Mexico, Central America
california
native		 No
sunset
zones		 16, 23, 24, H2

Sunset Zones Map

Growing Notes

Can self-attach by aerial roots, especially where the atmosphere is moist, but often it is best to train the cactus up a trellis or string to direct its path. Prune lightly in spring to open up the form if needed. Can look tangled over time.
Appreciates a hot spot, but be careful growing on a blasting south-facing wall, where full sun could be a bit much for this tree-growing cactus.
To control its exposure to rain and cold, try growing this vining plant in a container and pruning after bloom to manage its form.

Special Interest

The ephemeral evening bloom of this beautiful, fragrant flower is an occasion worth celebrating.

More Info

This cactus climbs up trees in seasonally dry tropical woodlands, which are often deciduous in winter-spring. This habitat has a winter dry season with increasing sun exposure until heavier rains begin in early summer and canopy trees flush with foliage, shading this plant and the understory.