How to Grow Pilea peperomioides? A Detailed Guide to the Latest Care Methods
Pilea peperomioides is a perennial succulent herbaceous plant of the genus Pilea in the family Urticaceae. Its thick, nearly round succulent leaves, with petioles attached in a peltate manner, closely resemble the mirror in which ancient immortals gazed at their faces, so people affectionately call it the mirror plant. In Yunnan and other regions outside South China, it is mostly grown as a greenhouse potted plant, and it is also very suitable as a household potted plant. Let us take a look together at how to grow Pilea peperomioides!
Growth Habits of Pilea peperomioides
Pilea peperomioides prefers shade, but it also grows well in a sunny greenhouse. The optimal growth temperature is 16-20°C. It is suitable for growing in relatively moist and well-drained peat soil. It is very shade-tolerant; it can grow as long as there is enough light to read an ordinary newspaper, so it is very suitable for household indoor potting. It likes a warm, humid environment. Below -4°C, chilling injury occurs, the leaves lose their luster and may even drop. It likes loose, well-drained loam rich in humus. You can take humus soil from shady spots in the mountains, or make a mix from leaf mold and peat with a little river sand, coal ash and base fertilizer. In warm regions it flowers and sets seed easily. It is relatively cold-tolerant and can overwinter safely outdoors in the south.
Propagation Methods for Pilea peperomioides
1. Division: When side shoots newly sprouting from the base of the stem or from stem nodes have grown more than 3 leaves, cut them off with fibrous roots, coat the wounds with stove ash, then plant them in a pot with soil rich in humus, shade them slightly, spray with clean water, and they can survive in about 10 days. Alternatively, between spring and summer, take cuttings from shoots with tips and insert them into a sand bed, keep them moist with plastic film, and at a temperature of about 20°C they can root in about 10 days.
2. Cuttings: In late summer and early autumn, carefully peel off the tillers growing on the plant stem with a sharp blade, plant them in clusters in a wet sand bed, place them in a cool place, and maintain relatively high air humidity; they will root in half a month, and after 1 month they can be potted up. For leaf cuttings, refer to the leaf-cutting method for begonias. You can also cut the stem into small sections of about 3 cm for cuttings.
3. Sowing: In Yunnan, Pilea peperomioides can be propagated by sowing seeds. The seeds of Pilea peperomioides are tiny, so they should not be sown deep; deep sowing makes it hard for seedlings to emerge.
How to Grow Pilea peperomioides
1. Soil: For potted Pilea peperomioides, you can use a growing medium mixed from leaf mold, garden soil and a little river sand, stove ash and bone meal. A loose, fertile, well-drained sandy loam rich in humus is best. For home cultivation, you can choose a mix of 3 parts leaf mold + 3 parts garden soil + 2 parts river sand or stove ash + 1 part decomposed organic fertilizer. When planting, use well-drained humus soil mixed with sand, and place tiles at the bottom of the pot to improve drainage.
2. Light: Pilea peperomioides is a shade-tolerant plant, but it also likes light. It should not be exposed to strong light; diffused light is preferable. If the light is too strong or the shade too deep, the glossy sheen of the leaves tends to fade or disappear. When it is too shaded, the leaves also tend to become thinner, and the petioles elongate, causing the leaves to droop. When winter temperatures are low, it can be given full-sun care.
3. Temperature: The suitable growth temperature for Pilea peperomioides is between 15-20°C. During overwintering it should be kept above 7°C, otherwise it easily drops leaves or even dies from freezing injury. When summer temperatures rise above 30°C, growth stagnation occurs and leaves easily drop. In particular, note that a sudden drop in temperature can cause the leaf stems to change color and partly drop. If leaves drop due to freezing injury, but the stem is undamaged, you can manage it according to routine overwintering care, and in the spring of the following year it can leaf out again and become a plant. In summer, do not place it in direct strong sunlight.
4. Humidity: Pilea peperomioides likes water but fears waterlogging. You can keep the potting soil moist. Drought easily causes wilting and drooping, and in severe cases the leaves develop wrinkles or turn yellow and die. It is not suitable for a dry environment; the growing environment should maintain relatively high air humidity. Frequently spray water on the growing environment and leaves to increase humidity so that it grows well.
5. Watering: In winter, when the temperature is below 12°C, watering frequency should be controlled, otherwise it easily rots, which is unfavorable for overwintering. Keep the potting soil moist often, but avoid water accumulation, to prevent leaf discoloration, wilting and even stem rot. Water according to the principle of watering when dry and stopping when wet; to maintain air humidity, you can frequently mist the leaf surface. During the entire growing period, the pot should remain moist; in winter it can be relatively drier, but there must not be a dry condition, otherwise the leaves easily wither and blacken. In dry seasons, frequently spray water on the leaves and surroundings to create a small humid environment.
6. Fertilizing: Pilea peperomioides is not tolerant of concentrated or heavy fertilizer. Apply small amounts many times; watering with dilute fertilizer solution is most suitable. Stop fertilizing when the temperature is above 28°C or below 12°C. During the growing season, apply dilute liquid fertilizer once every half month. The whole spring and summer is the vigorous growth period of Pilea peperomioides, so fertilizer and water management should be strengthened, and it should often be watered or sprayed on the leaves with a 0.1-0.5% potassium dihydrogen phosphate solution. During spring, supplement a small amount of nitrogen fertilizer irregularly; in summer, apply as little nitrogen fertilizer as possible or none. During the growing season, apply dilute liquid fertilizer once every half month, but note that too much nitrogen fertilizer will cause leggy leaves and lodging of the plant, and concentrated fertilizer and raw fertilizer will cause root rot and even death of the plant.
7. Pests and Diseases: Common problems of Pilea peperomioides include anthracnose and scale insect damage. For anthracnose, spray with thiophanate-methyl or carbendazim for control. For scale insects, spray with methidathion or chlorpyrifos for control. It is prone to leaf spot disease, which can be controlled by spraying a 600-fold dilution of 50% carbendazim once every ten days, for 3 consecutive sprays. When there is damage by cottony cushion scale and the like, spray the leaves with a 1000-fold dilution of 40% omethoate.