Hoya Hoya carnosa
At a glance
- Light
- Bright indirect
- 10000–20000 lux
- Water
- Every 10–14 days
- Top half of soil
- Humidity
- 40–60%
- Tolerates dry air
- Temperature
- 16–27°C
- Ideal 18–24°C
- Soil pH
- 6–7.5
- fast-draining
- Mature size
- 200 cm tall
- 60 cm wide
- Native to
- East Asia, Australia
- Growth
- Slow
- Trailing
Watering calculator
Estimate how often to water your Hoya based on pot size, light, and season.
Always check the top 2 cm of soil before watering. Calculator output is an estimate, not a schedule.
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Compare with similar plants
| Trait | Hoya Hoya carnosa | Sweetheart Plant Hoya kerrii | String of Pearls Curio rowleyanus |
|---|---|---|---|
| Light | Bright indirect | Bright indirect | Bright indirect |
| Water | 10–14 days | 14–21 days | 14–21 days |
| Pet safe | Pet-safe | Pet-safe | Toxic to cats and dogs |
| Difficulty | Easy | Easy | Moderate |
| Mature size | 200 cm | 60 cm | 5 cm |
Light requirements in detail
Hoya prefers bright indirect (10000–20000 lux) . A few hours of direct morning sun encourages bloom; never move once buds form (they will drop)
A spot 1–2 meters from a bright east or south-facing window usually fits this range. Direct afternoon sun through unfiltered glass can scorch leaves; sheer curtains help diffuse it.
Watering in detail
Water Hoya every 10– 14 days during the growing season, allowing Top half of soil to dry between waterings. Reduce frequency in winter when growth slows.
This plant tolerates the occasional missed watering — err on the dry side rather than overwater.
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Frequently asked questions about Hoya
How often should I water Hoya?
Water Hoya every 10–14 days during the growing season, allowing Top half of soil to dry between waterings. Reduce frequency by 30–50% in winter.
What kind of light does Hoya need?
Hoya prefers bright indirect (10000–20000 lux). A few hours of direct morning sun encourages bloom; never move once buds form (they will drop)
Is Hoya toxic to cats?
Hoya is non-toxic to cats according to the ASPCA Animal Poison Control Center. Mild stomach upset is still possible if a cat chews the leaves, but it will not cause poisoning.
Is Hoya toxic to dogs?
Hoya is non-toxic to dogs according to the ASPCA. Mild stomach upset is still possible if a dog chews the leaves.
How big does Hoya grow?
Hoya reaches about 200 cm tall and 60 cm wide at maturity. Growth rate is slow.