Rubber Plant
Ficus elastica robusta
Robusta
About this plant
The Rubber Plant 'Robusta' is a popular indoor tree known for its large, thick, glossy dark green leaves with a leathery texture. It can grow quite tall indoors and adds a bold, tropical look to any room. It is valued for its air-purifying qualities and ease of care.
Taxonomy
- Genus
- Ficus
- Family
- Moraceae
- Higher classification
- Rosales
- Plant type
- Houseplant
- Lifespan
- Perennial
Origin & Distribution
- Native region
- India, Malaysia
- Distribution
- Widely cultivated indoors worldwide; native to India and Malaysia regions.
Care
- Light preference
- Bright indirect
- Suitable locations
- Indoor, Balcony, Greenhouse
- Preferred window facing
- East-facing, South-facing, West-facing
- Watering frequency
- Moderate
- Watering interval
- 7–14 days
- Humidity
- Normal
- Minimum
- 10 °C
- Maximum
- 30 °C
- Optimal
- 18-24 °C
- USDA hardiness zones
- 10-12
- Soil pH
- 6.0-7.5 (slightly acidic to neutral)
- Soil type
- well-draining potting soil mix
Watering. Water when the top inch of soil feels dry. Avoid letting the plant sit in water to prevent root rot. Reduce watering in winter when growth slows.
Fertilizing. Feed monthly during the growing season (spring and summer) with a balanced liquid fertilizer diluted to half strength. Reduce feeding in fall and winter when growth slows.
Ficus elastica robusta is a tough and easy-to-care-for houseplant. It prefers bright, indirect light and moderate watering. Overwatering can cause root rot, so let the soil dry slightly between waterings. It rarely has serious problems and benefits from occasional wiping of its large leaves to keep them dust-free.
Propagation
- Propagation methods
- Cuttings
- Care difficulty
- Easy
Ornamental features
- Flowering
- No
Large, glossy dark green leaves with a leathery texture; upright tree form.
Toxicity & Safety
- Toxic to humans
- Mildly toxic
- Toxic to pets
- Mildly toxic
- Weed potential
- Not considered a weed
The sap can irritate skin and eyes; keep away from children and pets to avoid ingestion, which may cause mild stomach upset.
Allergy information
- Allergy risk
- Low
- Allergy triggers
- Sap or latex, Skin contact
- Pollen level
- Low
Ficus elastica robusta can cause mild allergic reactions in some people, especially those sensitive to plant sap. The sap may irritate skin or eyes. To reduce exposure, avoid touching the sap and wash hands if contact occurs.
Common problems
Overwatering can lead to yellowing leaves and root rot. Low light may cause slow growth and leaf drop. Occasionally, spider mites or scale insects may appear but are easy to control.
Uses
Primarily grown as an ornamental indoor plant for its attractive foliage and air-purifying qualities.
Notes
Prune to control size and encourage bushier growth. Repot every 2-3 years or when root-bound. Sensitive to cold drafts and sudden temperature changes.