Rubber plant (Ficus elastica) care guide

Rubber plant care is simple once you know what it hates: low light, cold drafts and wet soil in winter. Give Ficus elastica bright indirect light, water thoroughly when the top 2 inches of soil are dry, and keep it between 60 and 80°F, and it will grow into a 6–8 foot indoor tree with big glossy leaves.

The common failure is a tall, bare trunk with a tuft of leaves on top. That is a light and pruning problem, and it is reversible.

What a rubber plant is

Ficus elastica is a fig from Northeast India and Southeast Asia that reaches 100 feet in the wild. Indoors it grows 6–10 feet tall in a large pot. Each new leaf emerges from a reddish or pink sheath that falls off as it unfurls. Broken leaves and stems ooze white latex, which is where the name comes from.

Do not confuse it with the "baby rubber plant," Peperomia obtusifolia: an unrelated compact plant that the ASPCA lists as non-toxic. Its relatives in our database are the fiddle-leaf fig and weeping fig.

Choosing a size and where to put it

Rubber plants are sold from 4-inch tabletop starts to 6-foot floor trees. A small plant adjusts to your home more easily and grows fast in good light, so it can reach 4 feet in two to three years. A large tree makes an instant statement but is more likely to drop leaves after the move from a bright greenhouse.

Good spots in a typical US home:

• Living room corner beside an east window: the classic placement for a floor plant.
• A few feet back from a big south-facing slider: bright enough even for variegated types, as long as the leaves do not touch hot glass.
• Office: near a window, not under ceiling lights alone; the plant tolerates dry office air well.

Avoid hallways, the space between a door and a window (a draft corridor), and the top of a radiator or heat register.

Varieties

Light and placement

Clemson Extension says rubber plants grow best with morning light from an east window, and that they adapt to lower light. In practice:

Rotate the pot a quarter turn every few weeks so the trunk grows straight. Once a rubber plant is settled, do not move it around; each move tends to cost a few leaves. For low-light rooms, a grow light a foot or two above the canopy works well.

Watering

Water thoroughly until water drains, then wait until the top 2 inches are dry. Clemson's advice is the same: water thoroughly, but let the soil dry slightly between waterings, and make sure the pot drains.

These are starting points. In a big floor pot, a wooden chopstick or a moisture meter pushed halfway down is more reliable than the surface. Leaves that droop and curl on dry soil mean thirst; leaves that yellow and drop on damp soil mean too much water. See watering houseplants and overwatering.

Temperature and winter

Clemson gives 75–80°F by day and 60–65°F at night as ideal, and warns against temperatures below 55°F and cold drafts. In a US home the risky spots are next to a door that opens in January, against a single-pane window at night, and in the path of an air-conditioning vent in summer.

In winter, growth slows. Water less, stop feeding and keep it out of the hot blast of a heat register. Read our winter care guide for the full routine. In frost-free gardens rubber plants grow outdoors (NC State Extension lists USDA zones 9a–12b); elsewhere, bring a summered plant in when nights fall below 55°F.

Humidity and leaf cleaning

Rubber plants handle normal home humidity of 40–60% better than many tropicals thanks to their thick leaves. Dust is a bigger issue: it collects on the large flat leaves and cuts light. Wipe both sides with a damp soft cloth every two weeks, supporting the leaf with your other hand. Skip commercial leaf-shine products, which clog pores and attract dust.

Soil, pot and repotting

Use a standard indoor potting mix with 25% perlite or fine bark added for drainage; the plant likes slightly acidic soil, pH 5.5–6.5. Always use a pot with drainage holes.

Repot young plants every spring when roots fill the pot, going up 2 inches in diameter. Large plants can stay in the same pot for years; just scrape off the top 2 inches of soil each spring and replace it with fresh mix. A pot that is too large stays wet and rots the roots. See repotting and potting soil.

Fertilizer

Clemson recommends a water-soluble houseplant fertilizer every two weeks during active growth in spring and summer. If you prefer a lighter touch, use half strength every two weeks or full strength monthly. Do not feed in winter, right after repotting, or a plant that is dropping leaves. See fertilizer.

Pruning and branching

A rubber plant left alone grows as a single stem. To make it branch, cut the stem in spring just above a node (where a leaf joins the stem). One to three new shoots grow from the nodes below the cut within 4–8 weeks. Pruning also controls height; Clemson notes spring pruning can reduce height and rejuvenate leggy plants.

• Wear gloves and put down newspaper: the milky sap drips and stains.
• Blot the cut with a damp paper towel until the latex stops.
• Do not cut more than a third of the leaves at once.

Step-by-step with photos: rubber plant pruning. The general logic of a sparse plant is in leggy plants.

Propagation

Rubber plants propagate from tip cuttings, stem sections with a node, or air layering. Cuttings in water or moist mix root in 4–8 weeks at 75°F or warmer.

Air layering is the most reliable way to rescue a bare-trunked plant. The Iowa State University Extension describes it: choose a point 12–18 inches below a shoot tip, remove a 1-inch ring of bark, dust with rooting hormone, wrap with moist sphagnum moss and clear plastic, and tie both ends. Roots show in the moss in several weeks; then cut below the bundle and pot it up. The old trunk often resprouts. Full guide: rubber plant propagation.

Bringing one home

New rubber plants often drop two or three leaves in the first month as they adjust from greenhouse light. Place it in its permanent spot right away, water only when the soil is dry, and do not repot or fertilize for 4–6 weeks. Check under leaves and in leaf joints for pests before it joins your other plants.

Leaves dropping or turning yellow: decision rules

1. Did the plant move or see a cold night recently? Then wait; it is shock.
2. Is the soil damp 2 inches down and the leaves yellow? Overwatering. Let it dry and check the roots for brown mushy sections (root rot).
3. Is the soil dry and leaves curling? Underwatering.
4. Is only the oldest leaf at the bottom yellow? Normal.

More on dropping leaves and yellow leaves.

Pests

Scale and mealybugs are the main insect problems, and spider mites show up in dry heated air. Clemson lists mealybugs as the primary concern. Check stems and leaf undersides when you wipe the leaves; you will catch problems early. Treatment guides: scale, mealybugs, spider mites.

Toxicity

The ASPCA lists the Indian rubber plant (filed under Ficus) as toxic to dogs and cats, with the proteolytic enzyme ficin and psoralen (ficusin) as the toxic principles. Clemson notes that the sticky white sap may irritate skin or the stomach if eaten and advises keeping the plant away from pets and young children.

If a pet chews a leaf, call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435. For a child, call Poison Control at 1-800-222-1222. If you need a large plant that is safe around pets, see our pet-safe plants; for more big statement plants, see large houseplants.