Selenicereus validus is an ornamental, flowering cactus with stems that branch at the base. The stems are a pendant, rope-like, up to 40 cm long, up to 3 cm in diameter with very fine spines covering the exterior, stems cascade in waterfall form very easy. Nocturnal bloom opens at full darkness and stays open till late morning. The flowers are up to 22 cm long, white and gold, blooming in the warmer months from June to fall depending on your location.
Scientific Name: Selenicereus validus S.Arias & U.Guzmán
How to grow and maintain Selenicereus validus:
It thrives best in the light shade when young, then when they are mature, full sun is recommended, they need bright light all year round. Extra light in the early spring will stimulate budding.
It grows well in a rich-organic, well-drained soil mix.
Water regularly, during the growing season, but water sparingly when dormant (autumn and winter). Allow the top of the soil to slightly dry out before watering again.
It prefers average room temperatures of around 16°C – 24°C / 60°F – 75°F. The temperature should not be kept under 4 °C (39 °F) in winter.
Fertilize once every 15 days with compounds containing nitrogen, phosphorus, and potassium or use a good cactus fertilizer.
Repotting should be done every other year, or when the plant has outgrown its pot. Make sure the soil is dry and then remove the pot. Knock away old soil and prune away any rotted or dead roots, then replace it in a new pot and backfill with new soil.
It can be easily propagated from cuttings in spring or by Seeds. Simply sever a branch and replant in moist, well-drained soil. It helps to allow the cut end dry out and harden before you replant it, this makes it easier for the new cactus to form roots.
Pests and Diseases:
Selenicereus validus is susceptible to the scale or mealybugs. If bugs are detected on the cactus, apply an insecticidal soap to the plant according to the directions on the label.