American Rubber Plant
American Rubber Plant (Peperomia obtusifolia) is a popular, easy to care for house plant. It has medium dark green, shiny, leathery, oblong leaves that appear in a rosette pattern. It is a tropical perennial plant and grows best in wet soil. It is a slow growing plant that typically reaches heights of 8 - 12 inches.
American Rubber Plant requires regular watering during the growing season, approximately once every 10 - 14 days in the summer. During the winter, it is best to reduce to watering every 2-3 weeks or when the soil on the surface of the pot is dry. During this period, do not let the soil stay too dry or too wet, as it might suffer from disease or pest infestation.
American Rubber Plant can tolerate many light conditions, but prefers brighter indirect light rather than direct sun. Direct sunlight is likely to scorch its foliage or cause stress to the plant. However, it can thrive in shaded environments as well. It can be grown in artificial light if the light source is adequate and within 6 - 8 inches away from the plant.
The ideal temperature for American Rubber Plant is between 45 - 85 degrees Fahrenheit (7 - 29 degrees Celsius). Extremely cold temperatures are unfavorable to it and temperature beneath 50 degrees Fahrenheit (10 degrees Celsius) are likely to cause damage and harm the growth of the plant. In extremely hot climates, the plant should be placed in indirect lighting position with sufficient air circulation.
American Rubber Plant prefers high humidity but can tolerate low humidity as well. It would be beneficial to use a humidifier near its location. You can also mist it daily to maintain a humid environment for the plant, along with wiping its leaves with a damp cotton cloth.
American Rubber Plant requires a light and well-draining soil. To achieve this, mix equal parts of potting soil, peat, and perlite or coarse sand. This mix provides the soil with good draining capability, as well as aeration. You can also add a few tablespoons of bone meal or fish emulsion to the soil for added nutrients.
Fertilizing American Rubber Plant during the growing season is recommended. Use an all-purpose, water-soluble fertilizer diluted to half strength, or use diluted fish emulsion. Fertilize the plant once every month during the growing season and every two months during the winter months. It is best to avoid feeding the plant during its dormant phase. Stop fertilizing from late autumn to early spring.
American Rubber Plant is not immune to pest problems. Common pests that cause damage to it are mealybugs, spider mites, and scale insects. Mealybugs are white and cottony and can be found underneath the leaves. Spider mites are tiny and red and can cause yellow spots on the leaves. Scale insects can cause damage to the plant's stems, leaves and roots. If the plant has been infested, it is best to isolate it from other plants. It can be treated with neem oil or Horticultural oil sprayed every seven to ten days for three to four weeks. It is best to avoid using chemical pesticides.
The American Rubber Plant should be repotted every year. It is best to repot in early spring when the plant is actively growing. Before repotting, use a sharp knife or pruners to snip off dead or decaying root ball. Take the plant out of the pot and put it in a fresh pot that is slightly larger in size that the original one. As the plant grows, you should also increase the size of the pot.
American Rubber Plant may require pruning every now and then. Pruning is best done when the plant is actively growing, which is usually during the spring and summer. To prune, cut off dead leaves and stems, or cut back on foliage to control the size of the plant. Pruning helps to keep the plant looking neat and encourage bushy growth.
American Rubber Plant does not require mulching. However, if you decide to have a mulch layer around the pot to help retain moisture, use organic materials, such as bark chips, straw, and mulch compost.
American Rubber Plant can be propagated easily from stem cuttings. Select healthy stems with multiple leaves and cut about 4 - 6 inches from the tip of the stem. Dip the end into a rooting hormone and plant it in a light and well-drained soil. Keep the pot moist for a few weeks and it should start to root. Once it is established, transplant it to larger containers.
American Rubber Plant does not require any support. However, you may need to use a stake to help the plant maintain its upright position if the plant is tall and heavy.
American Rubber Plant does not require a rest period. It may, however, enter a dormant phase during the winter months, during which the growth of the plant slows down. During this time, it requires less water and less fertilizer.
American Rubber Plant is not toxic to pet animals, such as cats and dogs. Therefore, it is safe to have around them.
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