How to Care for a Rubber Plant? Detailed Guide to Growing Methods and Precautions

SummaryGrowing methods: For the rubber plant (Ficus elastica), you can choose materials such as plain sand, garden soil and leaf mold to prepare the growing medium, while mixing in a small amount of farmyard manure as a base fertilizer. The optimal growing temperature is 20-25°C, and it can be given scattered light. During the growing period it needs plenty of water to keep the potting soil moist. In winter, watering should be controlled to avoid root rot, and top dressing can be applied with nitrogen, phosphorus and potassium fertilizers. Precautions: Later on, promptly prune dead branches, thin and weak branches, forked branches and inward-growing branches, and repot once every 2 years.

I. Methods for Growing a Rubber Plant

1. Soil

The rubber plant loves fertile, loose, well-drained sandy loam. The growing medium can be prepared from garden soil, leaf mold, plain sand and other materials, mixed with a small amount of farmyard manure as a base fertilizer.

2. Temperature

The rubber plant loves a warm environment. The suitable growing temperature is 20-25°C. It is tolerant of high temperatures and can still grow robustly when the temperature is above 30°C, but it is not cold-tolerant. The safe wintering temperature is 5°C. Variegated varieties have relatively poor cold tolerance, and the wintering temperature needs to remain stable above 8°C. When the temperature is too low, a large number of leaves will drop.

3. Light

(1) The rubber plant loves bright, scattered light and has good shade tolerance, but it is not tolerant of intense direct sunlight. Too strong light can easily cause leaf scorch, resulting in yellowing and burnt leaves.

(2) Light should also not be too shady, as this can easily cause a large number of leaves to drop and make the beautiful markings on variegated varieties fade. From May to September, the plant needs to be shaded, or it can be moved to a spot with ample scattered light for care; in the other seasons, it needs plenty of sunlight.

4. Watering

The rubber plant loves a moist soil environment. During the growing period it needs plenty of water, which helps keep the potting soil moist. In winter, watering needs to be controlled. When the temperature is too low and the potting soil is too wet, the plant's root system can easily rot.

5. Fertilizing

(1) The rubber plant grows relatively quickly, so nutrients need to be supplied promptly to promote more vigorous growth. Nitrogen fertilizer can be applied as a top dressing 2-3 times a month. Varieties with colored markings grow relatively slowly, so the number of fertilizer applications can be appropriately reduced, while phosphorus and potassium fertilizers can be added to make the markings on the leaves glossy and bright.

(2) If nitrogen fertilizer is applied excessively or alone, the color of the markings will fade or disappear. In September, nitrogen fertilizer should be stopped, and phosphorus and potassium fertilizers should be appropriately applied as top dressing, which helps improve the plant's cold resistance. In winter, the plant enters a dormant state, and fertilizing should be stopped at this time.

II. Precautions for Growing a Rubber Plant

1. Pruning Branches and Leaves

In spring, pruning can be done along with moving the plant out of the shed. Prune away dead branches, thin and weak branches, forked branches and inward-growing branches inside the canopy. You also need to shorten the rampant shoots that stick out beyond the canopy, which helps ensure good ventilation and light penetration inside the plant and keeps the tree shape attractive. If the canopy is too large, the outer branches can be shortened overall. During the growing period, branches that grow too densely need to be pruned promptly.

2. Repotting and Maintaining Humidity

Generally, the plant needs to be repotted once every 2 years. When the weather is clear and the air is dry, frequently spray water on the branches, leaves and the surrounding environment, which helps raise the humidity in the air.