Rubber plant (rubber tree) care

Light

Rubber plant thrives in bright indirect light — the conditions just back from a sunny window, with plenty of ambient brightness but rarely any direct rays on the leaves themselves. Bright indirect light keeps leaves glossy and well-spaced. Variegated cultivars need brighter light; burgundy forms tolerate slightly less. If you are not sure whether your spot is bright enough, a free phone lux-meter app at midday is the quickest way to check; aim for 800-1,500 lux.

Watering

Water rubber plant when the top 3 cm of soil is dry, every 7-10 days. The actual day count varies with pot size, light level, and the season — the finger test (or, better, lifting the pot to feel its weight) is more reliable than a calendar. Empty any drainage saucer after watering so the pot is never sitting in water. Soak thoroughly then let excess drain. Yellow lower leaves are the first sign of overwatering.

Soil and pot

Rubber plant grows best in free-draining indoor tree mix. Standard potting compost with 20-30% perlite and a handful of orchid bark for structure. Repot every 2-3 years. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Rubber plant sits happiest at around 40-60% humidity and 18-26°C (65-80°F). Average humidity is fine. A pebble tray helps in winter. If you keep the room above 18 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed rubber plant sparingly. Balanced liquid feed at half strength every 4 weeks during the growing season. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on rubber plant in the Growli community. Where a problem matches one of our diagnostic guides, click through for the full step-by-step recovery plan written for rubber plant specifically.

• Yellow leaves — Overwatering or sudden change in conditions.
• Brown patches on leaves — Sunburn or cold draught damage.
• Drooping leaves — Underwatering or root rot — check the soil first.
• Leaf drop after moving — Like fiddle-leaf figs, rubber plants sulk after relocation; give them 3-4 weeks.

Companion plants

Rubber plant pairs well with Fiddle leaf fig, Bird of paradise, and Monstera. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Stem cuttings with one or two leaves root in water or moist mix in 4-6 weeks. Air-layering is more reliable for thick stems. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Rubber plant is toxic to pets. ASPCA lists Ficus elastica as toxic to cats, dogs and horses due to the milky latex sap, which irritates skin and digestive tracts. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Rubber plant deep-dive guides

Every aspect of rubber plant care, each with its own calibrated guide:

• Rubber plant watering schedule
• Rubber plant light requirements
• Best soil mix for rubber plant
• Rubber plant fertilizing guide
• When to repot rubber plant
• How to propagate rubber plant
• Rubber plant growth rate & size
• Rubber plant cold hardiness
• Rubber plant temperature & humidity
• Is rubber plant toxic to cats & dogs?

Related guides

Rubber plant is also known as rubber tree, rubber bush, and Indian rubber fig.

• Diagnose rubber plant symptoms — yellow leaves, drooping, brown spots, and more
• Monstera care — light, water and common problems
• Pothos care — light, water and common problems
• Fiddle leaf fig care — light, water and common problems
• All 200 plant care guides in the Growli library