Ric Rac cactus Care (Selenicereus anthonyanus)

This forest cactus prefers bright, indirect light that mimics dappled sun under tree canopies.

• Provide 6–8 hours of bright, filtered light daily, such as an east window with morning sun or light behind a sheer curtain.
• It tolerates partial shade, but very low light leads to stretched, weak growth and fewer flowers on a Ric Rac cactus.
• Avoid harsh midday or afternoon sun, especially in summer; direct exposure can scorch leaf edges, so shift slightly farther from south or west windows.

Watering should mimic a moist but fast-draining forest environment rather than a true desert habitat.

• Water when the top 3–5 cm of soil are dry, then soak thoroughly so excess drains away; do not leave the pot sitting in runoff.
• Reduce watering in winter, letting the potting mix dry a bit deeper, as cooler, darker conditions slow Selenicereus anthonyanus growth and water use.
• Watch for signs: soft, yellowing, or translucent stems suggest overwatering and poor drainage; thin, wrinkled segments indicate the plant stayed dry too long.

This species grows best in warm, stable temperatures without frost or extreme heat swings.

• Aim for 65–80°F (18–27°C) during active growth; short peaks to 85°F (29°C) are tolerated if humidity and airflow are adequate.
• Protect from cold; growth slows below 60°F (16°C), and damage occurs near 40°F (4°C), with tissue dying if exposed to frost.
• In winter, a slightly cooler period around 60–70°F (16–21°C) is acceptable, but avoid drafty spots, heaters, or vents that cause rapid temperature fluctuations.

This epiphytic cactus prefers moderate indoor humidity and copes with typical household air.

• Aim for 40–60% humidity to support healthy, glossy, lobed stems on Ric Rac cactus.
• Tolerates short dry spells, but very dry air can cause crispy stem edges and slowed growth.
• Increase humidity by grouping plants, using a small humidifier nearby, or placing the pot on a pebble tray above (not in) water.

This species needs a very fast-draining, airy mix that mimics loose, organic forest debris on tree branches.

• Use a mix of roughly 50% cactus or succulent mix with 25% fine orchid bark and 25% perlite or pumice for structure and drainage.
• Ensure a loose, chunky texture that allows water to pass quickly while roots cling to organic pieces rather than dense, compacted soil.
• Keep pH slightly acidic to neutral, around 6.0–7.0, which is typical for most commercial potting substrates used for Selenicereus anthonyanus.
• Avoid heavy garden soil, peat-only mixes, or containers that hold water for long periods, which promote root rot and oxygen-poor conditions.

This cactus is well-suited to container growing due to its shallow, spreading root system and trailing stems.

• Choose a wide, shallow pot that lets roots spread laterally and supports the plant’s cascading habit without crowding.
• Select a stable, heavier container if stems become long and top-heavy, reducing the risk of tipping when the medium is dry.
• Leave a clear rim space at the top of the pot so water can be applied slowly and drain evenly without overflowing the soil surface.

This epiphytic cactus benefits from light feeding during its active growing season.

• Use a balanced liquid cactus or houseplant fertilizer (around 10-10-10 or 20-20-20) diluted to 1/4–1/2 strength.
• Apply every 4–6 weeks in spring and summer when the Ric Rac cactus is producing new segments.
• Avoid high-nitrogen lawn or foliage formulas, which encourage weak, lush growth at the expense of flowers.
• Stop feeding in fall and winter to allow a natural rest period and reduce root stress.

Pruning Selenicereus anthonyanus is mainly used to manage size and improve plant health.

• Carry out pruning in late winter or early spring before strong new growth begins.
• Use clean, sharp scissors or pruning shears to remove dead, diseased, or damaged stems at their base.
• Thin out tangled or crowded segments to open the plant, improving light penetration and airflow.
• Shortening overly long stems encourages branching and can lead to a fuller hanging form over time.

This cactus prefers slightly snug containers and only needs repotting when truly root-bound.

• Check for roots circling the pot, growing from drainage holes, or a noticeable slowdown in growth as signs to repot.
• Plan repotting in late winter or early spring, typically every 2–3 years for healthy indoor plants.
• Choose a shallow, slightly larger pot with a fast-draining cactus or orchid mix to support aerial roots.
• Minimize root stress by watering lightly a day before, handling roots gently, and keeping the plant shaded for 3–5 days after repotting.

New Selenicereus anthonyanus plants are most commonly produced from stem cuttings.

• Take healthy, mature stem segments in spring or early summer, cutting just between joints.
• Allow cut ends to dry and callus for 2–3 days in a warm, shaded place to reduce rot risk.
• Insert the callused end into a slightly moist, well-draining cactus or succulent mix and keep at 70–80°F.
• Provide bright, indirect light and minimal watering until firm resistance indicates roots have formed, then transition to normal care.

This tropical cactus is sensitive to frost and needs protection in colder climates.

• Keep plants above 50°F, with an ideal winter range of 55–65°F for indoor specimens.
• Move containers indoors before night temperatures drop near 50°F, placing them in bright, indirect light.
• Reduce watering so the top half of the potting mix dries before re-watering, preventing cold-related root rot.
• Avoid cold drafts and unheated windowsills, which can chill stems and cause tissue damage.