AxilDB — Botanical Accession System

Hoya carnosa 'Compacta' husbandry

Water sparingly; let most of the mix dry first.Bright indirect light; some gentle sun.Mildly toxic/irritant possible; keep from pets and children.

Water: Water sparingly; let most of the mix dry first.
Light: Bright indirect light; some gentle sun.
Toxicity: Mildly toxic/irritant possible; keep from pets and children.
Care notes: Warm, bright, very free-draining epiphyte care; avoid overwatering and heavy soil.

Cadence: Typically every 1-2 weeks in active growth, less in winter.
Moisture level: Allow the top 50-75% of the mix to dry before watering again.
Drought tolerance: Moderate to good; prefers slight dryness over constant moisture.
Wet/dry cycle notes: Soak thoroughly, then drain completely; do not leave standing in water.
Seasonal adjustments: Reduce frequency in cool, low-light months; increase only when growth and drying speed pick up.

Intensity: Bright indirect light; a little morning or late-afternoon sun is helpful.
Duration: About 10-14 hours of bright light daily is ideal.

USDA zone: Typically grown as a houseplant; USDA zones 10-12 outdoors.
Cold tolerance: Best kept above 13 C; brief cooler nights tolerated, but not cold exposure.
Heat tolerance: Handles warm indoor conditions well if humidity and watering are adequate.
Frost sensitivity: Very frost sensitive; protect from any freezing temperatures.
Overwinter instructions: Keep warm, reduce watering, and place in the brightest practical indoor window.

Range: Average to moderate humidity, roughly 40-60% preferred.
Dry air tolerance: Fair; tolerates normal indoor air but grows better with moderate humidity.
Misting notes: Misting is usually unnecessary; use airflow and a humidity tray if air is very dry.

Preferred medium: Very airy epiphytic mix: chunky bark, perlite/pumice, and a small amount of peat or coco coir.
pH preference: Slightly acidic to neutral, about pH 6.0-7.0.
Drainage needs: Excellent drainage and fast air movement around roots are essential.
Growth substrate habit: Semi-epiphytic vine with fleshy leaves; roots prefer oxygen-rich media.
Substrate recipe notes: Use a coarse orchid-style mix rather than standard dense potting soil.

Type: Balanced liquid fertilizer, optionally with lower nitrogen and adequate micronutrients.
Strength: Use dilute strength, about 1/4 to 1/2 label rate.
Frequency: Every 2-4 weeks during active growth; flush occasionally.
Seasonal schedule: Feed in spring and summer; pause or greatly reduce in autumn and winter.
Micronutrient notes: Include calcium, magnesium, and trace elements if growth is pale or stunted.

Interval: Every 2-4 years, or when mix breaks down.
Pot type: Small pot with excellent drainage; terracotta can help if overwatering is a risk.
Root sensitivity: Roots are moderately sensitive; handle gently and avoid frequent disturbance.
Dormancy consideration: Repot in active growth when temperatures are warm and light is good.
Division guidance: Usually not divided; pot up slightly and preserve the root ball.

Preferred methods: Stem cuttings, layered nodes, and occasionally tissue culture.
Difficulty: Easy to moderate.
Expected success: High with warm temperatures and an airy medium.
Optimal timing: Late spring through summer, or anytime with warm bright conditions.
Rooting hormone notes: Rooting hormone is optional; clean cuts and humidity are usually sufficient.
Tissue culture notes: Possible commercially, but not usually needed for home or accession work.

Common pests: Mealybugs, scale, aphids, spider mites, and fungus gnats in wet media.
Common diseases: Root rot, stem rot, and occasional sooty mold from sap-feeding pests.
Treatment notes: Isolate affected plants, remove pests mechanically, and correct moisture/light issues first.
Susceptibility level: Moderate; main risk is overwatering and root rot.
Preventative practices: Use sterile tools, airy mix, good drainage, bright light, and inspect leaf axils regularly.

Pets: Potentially mildly toxic if chewed; may cause GI upset.
Humans: Potential skin or stomach irritation possible; keep out of reach of children.
Sap irritant: Milky sap may irritate skin or eyes in sensitive people.
Edible?: Not considered edible.

Dormancy behavior: No true dormancy; growth slows in cooler, darker months.
Typical bloom season: Usually spring to summer, but established plants may bloom unpredictably.
Bloom duration: Flowers often last several days to a few weeks.
Fragrance: Strong sweet fragrance, often strongest in the evening.
Rebloom tendency: Good on mature, well-lit plants; may rebloom annually or more.
Bloom triggers: Maturity, bright light, slight root restriction, and consistent care.
Pollinator notes: Waxy umbels attract insects in native habitat; indoor pollination is uncommon.

Growth habit: Twining or trailing epiphyte with thick, curled leaves in the Compacta cultivar.

Rarity: Common in cultivation; cultivar availability varies by region.
Conservation status: Not generally cited as threatened; wild status varies locally and may be under-recorded.
Reference links: Use POWO, GBIF, and iNaturalist records for distribution and taxonomic reference.
Protected species notes: No special protection typically noted for common cultivated stock; check local regulations for wild collection.
Collection restrictions: Avoid wild collecting without permits; verify accession source and cultivated provenance.
Import/export concerns: Inspect for mealybugs, scale, and mites before transport; follow phytosanitary rules.
Invasiveness: Low risk in most interiors; may naturalize in frost-free tropical climates.
Native range notes: Native to tropical Asia and nearby regions; exact native range is broad and sometimes treated variably.