How often should you water a rubber plant? Watering methods and solutions for root rot
Among green plants, I really like the rubber plant bonsai. Although its leaves are dark green, each leaf clusters and grows upward, thick and steady, giving a strong sense of vitality that urges one forward. Liking it is appreciating it; loving it is watering it. So, how should a rubber plant be watered?
How to water a rubber plant (how often to water)
Keep the soil moist normally, and apply a dilute liquid fertilizer once every 15-20 days. In hot summer weather, the rubber plant grows quickly and should be given plenty of fertilizer and water, but avoid waterlogging in the pot. After autumn begins, gradually reduce fertilizing and watering to promote solid plant growth and help it overwinter. Because the rubber plant likes sunlight, it should be placed outdoors in a sunny spot from spring to autumn for care; if placed in shade for a long time, it easily causes leaves to turn yellow and drop.
Because the rubber plant is not cold-tolerant, in winter it must be moved indoors to a sunny spot for care, keeping the room temperature above 10°C, and the lowest temperature should not fall below 5°C; if the temperature is too low and the potting soil is damp, it will cause the leaves to turn black and drop and the roots to rot, and may even kill the whole plant. At the end of April to early May of the following year, move it to a courtyard or balcony for care.
Solutions for rubber plant root rot
1. First cut away the already rotted root system until the cut surface is fresh and white milky sap seeps out. Let it air dry slightly until the sap at the wound dries, or apply a wound-healing antiseptic film to the wound to disinfect it and protect the wound, or smear clean plant ash or charcoal powder on the wound. At the same time, cut off part of the branches to reduce transpiration loss of water.
2. Then repot and plant it. When replanting, it is best to use clean, slightly damp fine sand to first surround the root wound, and use fresh, loose sandy loam on the outside to plant it. Strengthen shading and misting management, and do not water again until the potting soil is dry; after planting, spray with new high-fat film to prevent pathogen invasion, shorten the recovery period, and promote healthy growth. As long as the plant's root system is not too severely damaged, new fine fibrous roots will grow from the wound area of the root system after one month. In later care, just keep the potting soil slightly moist often; do not overwater, and you can mist the leaf surface more in the morning and evening.
Solutions for rubber plant leaf drop
1. Suitable temperature
The rubber plant likes high-temperature, high-humidity environmental conditions and likes places with plenty of sunlight. Its suitable growth temperature is 20-25°C. One of the most common situations for rubber plant leaf drop is low temperature, especially in winter. Generally, when the temperature is below 10°C, the rubber plant will begin to drop leaves. At this time, it needs to be moved indoors or to another warmer place, but note that it must have sunlight exposure.
2. Plenty of sunlight
The rubber plant is a sun-loving plant and needs to be placed in a place with plenty of sunlight, maintaining good light. In winter, it is best if it can also receive full sun. If it is placed in a dark place where it cannot receive sunlight, it is also very easy to cause rubber plant leaf drop.
3. Appropriate watering
During the growth period, the rubber plant must be watered frequently, especially in the hot midsummer season. Because evaporation is high, it is necessary not only to water from the roots, but also to frequently spray and water the leaf surface. However, if the potting soil for growing rubber plants is too wet, it easily causes root rot, so it must be watered only when the potting soil is dry. Watering too frequently or not watering for a long time will both cause rubber plant leaf drop.
4. Deal with pests
Rubber plants sometimes also have pest problems. Red spider mites on the leaves and scale insects on the branches and leaves can both cause leaf drop, so when leaf drop occurs, check whether it is a pest problem and handle it promptly.
The role of the rubber plant
1. Ornamental
The rubber plant has large, shiny leaves and remains evergreen all year round. It is a large shade-tolerant foliage plant. Whether placed in an ordinary household in a hall or corridor, or used to decorate a hotel lobby, the potted rubber plant is a very good decorative material, and it has vigorous growth ability and does not need much care. In southern China, it is common to see rubber plants planted in front of residential buildings, in the center of flower beds, and along both sides of roads.
2. Purifying air
In places with plenty of sunlight, the rubber plant can carry out vigorous photosynthesis and transpiration, regulating air humidity and oxygen content, and it also has a unique function of purifying dust. It can also absorb harmful gases such as formaldehyde among volatile organic compounds, carbon monoxide, carbon dioxide, and hydrogen fluoride in the air, purifying stale indoor air. It is relatively good for spaces with a lot of airborne dust or poor indoor air circulation.
The rubber plant's leaves are green within black and delightfully shiny, and every vein is full of powerful life. In spring, rubber plants race to sprout, send out leaves, and grow. Rubber plants are very easy to grow. Whether watered or forgotten, most of the time rubber plants are always vigorous and full of life.