How to grow window haworthia
Overview
Window haworthia is a compact, clump-forming succulent with translucent leaf tips that allow light into the inner leaf. It is grown as an ornamental houseplant or garden accent in bright shade, valued for its rosette form and low water needs.
Soil Preparation
Use a very free-draining mix: 2 parts coarse sand or pumice to 1 part potting soil. Ideal pH is 6.0–7.0. Add a handful of perlite or crushed granite to improve aeration and prevent waterlogging.
Growing Guide
Position in bright, indirect light or morning sun only; avoid harsh afternoon rays. Use a free-draining succulent or cactus mix, and plant in a shallow pot or rockery with good air flow. Space offsets 5–10 cm apart; water only when the soil is dry to the touch. In cooler districts, keep under cover or in a greenhouse during winter.
Care
Feed with a diluted, low-nitrogen liquid fertiliser once monthly in spring and summer only. Remove dead or shrivelled leaves to prevent pest harbourage. Repot every 2–3 years or when offsets crowd the pot, using fresh succulent mix.
Companion Planting
Pair with other small succulents like Echeveria, Sedum, or Lithops in a mixed dish garden. Avoid planting near moisture-loving ferns or annuals that require frequent watering, as this can lead to rot.
Common Pests & Risks
Mealybugs are the main pest; treat with a cotton swab dipped in isopropyl alcohol or use a systemic insecticide. Fungal rot occurs from overwatering or poor drainage; remove affected leaves and reduce watering immediately.
Troubleshooting
Yellow leaves: overwatering or poor drainage; let soil dry out completely and repot in grittier mix. Brown leaf tips: too much direct sun; move to brighter shade. Soft, mushy leaves: rot from cold or wet; cut back watering and increase warmth. Stretched, leggy growth: insufficient light; move to a brighter spot.