Wax Plant
Wax Plant (Hoya carnosa)
Wax Plant is a classic, long-lived hoya prized for thick, glossy leaves and clusters of sweetly fragrant, star-shaped flowers; an easy indoor vine that thrives in bright, indirect light and a chunky, fast-draining mix as a hanging or trellised specimen.
Distinctive Features
Succulent foliage stores water and develops a handsome sheen, while waxy umbels on mature plants rebloom from persistent peduncles, delivering a long flowering season under steady light and warmth.
Growing Conditions
Provide strong filtered light, warm temperatures, and an airy epiphyte blend; allow partial dry-down between waterings and keep humidity moderate for reliable growth and bloom.
- Sun Exposure: Bright, indirect light; brief morning sun is beneficial, avoid harsh afternoon rays.
- Soil: Well-drained, airy mix with bark and perlite plus a small amount of peat or coco; avoid dense, water-holding soils.
- Water: Water thoroughly, then let the top 1 to 2 in dry; reduce in winter and err slightly dry to prevent rot.
- USDA Hardiness Zones: 10 to 11 outdoors; grow as a houseplant elsewhere.
- Mature Size: Vines typically 4 to 10 ft indoors with support.
- Bloom Time: Spring to fall on established vines with adequate light.
- Humidity: Moderate to high, about 40 to 60 percent.
- Soil pH: Slightly acidic to neutral, around 6.0 to 7.0.
Ideal Uses
Train on a hoop or trellis for a sculptural specimen, or let stems cascade from shelves and baskets to showcase glossy foliage and fragrant umbels.
- Focal Point: Shiny leaves and starry blooms create a bold indoor accent.
- Hanging Displays: Trailing stems highlight foliage and flowers.
- Trellised Specimen: Twining growth forms tidy spirals on hoops or ladders.
- Collector Groupings: Mix with variegated or silver-splashed hoyas for contrast.
- Bright-Shade Corners: Performs where many tropical vines struggle.
Low Maintenance Care
Keep roots slightly snug, feed lightly during warm months, and never remove flower spurs to encourage repeat bloom; patience and steady conditions are rewarded.
- Watering: Deep soak and drain fully; allow partial dry-down and avoid standing water.
- Pruning: Tip-trim for shape but do not cut peduncles, which rebloom.
- Fertilizing: Apply balanced or bloom-boosting fertilizer at half strength monthly in spring and summer.
- Mulching: Not required in pots; a thin decorative bark layer can slow evaporation.
- Notes: Provide airflow to deter mealybugs and scale; repot only when rootbound to maintain flowering momentum.
Why Choose Wax Plant?
This beloved species pairs glossy, drought-tolerant foliage with delightful fragrance and forgiving care for years of indoor enjoyment.
- Fragrant Umbels: Waxy stars on mature vines in good light.
- Waterwise: Succulent leaves tolerate brief dry-downs.
- Space Efficient: Trails or trains vertically to fit small areas.
- Long-Lived: Improves with age and steady conditions.
- Easy and Adaptable: Reliable houseplant for beginners and collectors.
Place in bright, indirect light with a chunky mix, allow partial dry-down between waterings, and keep peduncles intact to enjoy repeat bloom and glossy leaves.
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