How to grow ric rac cactus
Overview
Ric rac cactus (Disocactus anguliger) is an epiphytic herbaceous cactus grown for its distinctive zigzag stems and fragrant night-blooming flowers. It thrives in hanging baskets or pots with filtered light, and requires consistent moisture without waterlogging.
Soil Preparation
Use an orchid bark or coarse potting mix with added perlite for drainage. Aim for pH 5.5–6.5. Avoid garden soil—it compacts and causes root rot.
Growing Guide
Position ric rac cactus in bright, filtered light—avoid direct afternoon sun. Use a well-draining orchid mix or coarse bark-based potting medium. Water when the top 2 cm of mix feels dry, reducing in winter. Space plants 30 cm apart in baskets. Support stems with soft ties if needed.
Care
Feed monthly in spring and summer with a balanced liquid fertiliser at half strength. Prune leggy stems after flowering to maintain a compact shape. Repot every 2–3 years into fresh orchid mix.
Companion Planting
Pair with other epiphytic plants like orchids, bromeliads, or ferns in a shaded patio setting. Avoid planting near heavy feeders like tomatoes or leafy greens that compete for moisture.
Common Pests & Risks
Mealybugs: treat with neem oil or insecticidal soap. Stem rot: caused by overwatering—improve drainage and reduce watering frequency. Scale insects: remove with a soft brush or horticultural oil.
Harvesting
Harvest is not applicable—ric rac cactus is grown for ornamental flowers and foliage. Enjoy blooms from late spring to autumn.
Troubleshooting
Yellow stems: too much direct sun—move to filtered light. Brown, mushy stems: overwatering—let mix dry out. Stunted growth: lack of fertiliser in growing season. Drooping stems: underwatering—increase frequency. No flowers: insufficient light or winter chill.