What are the precautions for growing Pilea involucrata?
1. Water:
Keep the soil moist at ordinary times, water when dry and let it dry out between waterings, and never let water accumulate in the pot.
2. Temperature:
Pilea involucrata is relatively cold-tolerant; it will not freeze as long as the winter room temperature is not below 6°C, and it begins to grow above 14°C.
3. Fertilizing:
During the growing season of Pilea involucrata, apply a nitrogen liquid fertilizer at a 20-80 or 30-70 ratio about once every two weeks to make the plant strong. After autumn, apply additional phosphorus and potassium fertilizer to strengthen the stems and prevent lodging.
4. Soil:
Pilea involucrata likes loose, well-drained soil, which can be prepared by mixing loam, river sand, and leaf mold.
5. Pests and diseases:
In the high-temperature summer season, pests and diseases such as scale insects and aphids are likely to occur. They should be scraped off promptly or washed off with soapy water, and in severe cases pesticide spraying can be used for control. In addition, poor management can lead to leaf spot disease, which should be controlled promptly. For the common damage of leaf spot disease, spray 200 times Bordeaux mixture for prevention. If the potting soil is too wet, root rot is likely to occur, and it can be drenched with 1000 times solution of thiophanate-methyl. If root-knot nematodes are found, apply 3% carbofuran for control. If there is damage from scale insects, spray with 1000 times solution of 40% omethoate to kill them.
6. Placement:
Displayed in the study or bedroom, it is elegant and pleasant.
Cultivation and propagation methods of Pilea cadierei and pest and disease control
Pilea cadierei is also known as mosaic urticaceae and snow grass. It belongs to the family Urticaceae and the genus Pilea. It is native to Vietnam and is mostly distributed in tropical regions.
Morphological characteristics: Perennial evergreen herb, plant height 15-40 cm. Leaves opposite, oval, 4-8 cm long. The upper part of the leaf margin has sparse blunt serrations, and the lower part is often entire. The base color of the leaf surface is green, with three longitudinal main veins, and the vein areas are slightly sunken. Between the main veins there are silver-white markings, and the striped areas are slightly raised; the leaf back is green. Common cultivated varieties include: Pilea cadierei cv. Nana: branches and leaves densely grown, the plant is relatively short, less than 20 cm.
Common cultivated species in the same genus include: Pilea involucrata: leaves cross-shaped opposite, veins reddish brown, leaf surface yellow-green, surface wrinkled, margin serrated, veins tea-brown, leaf color and markings very similar to iron cross begonia.
Pilea nummulariifolia: the plant creeps and trails, with fine and numerous branches, and the whole plant is covered with short, fine hairs. Leaves round, base heart-shaped, thin in texture, leaf margin with semicircular serrations, and the mesophyll between veins raised. Pilea cadierei 'Silver': stems upright, much branched. Petioles short, leaves ovate-lanceolate, dark green, with blunt serrations, and a beautiful silver-white stripe in the center of the leaf extending from the leaf base to the tip.
Habits: Likes a warm, humid, and semi-shaded environment, avoids direct sunlight, and has strong shade tolerance. It tolerates both fertility and poor soil, and likes to grow in loam rich in organic matter. It is not drought-tolerant and has a certain degree of cold tolerance, able to withstand short-term low temperatures of 5°C.
Cultivation management: Pilea cadierei has low requirements for soil, and ordinary garden soil mixed with sand can be used as growing soil. To make the plant grow vigorously with dense, dark green branches and leaves, the potting soil can be made by mixing 5 parts leaf mold or peat soil, 3 parts perlite, and 2 parts river sand, plus a small amount of base fertilizer, and maintained under warm and humid climatic conditions.
During the growing period, pay attention to timely watering to keep the potting soil moist. In the hot summer, increase the frequency of watering, and water once a day to maintain moderate soil moisture, and often water the leaf surface and ground to maintain sufficient air humidity. In autumn and winter, reduce watering frequency, otherwise black spots may appear on the leaf surface. Watering should follow the principle of "water when dry and let it dry out between waterings," and avoid waterlogging. During the growing season, apply a dilute liquid fertilizer once every 2-3 weeks, but do not apply too much nitrogen fertilizer alone. Granular fertilizer can also be used, but do not let the fertilizer touch the leaf surface. It is best to lightly sprinkle water on the leaf surface after fertilizing to wash away any fertilizer that accidentally falls on the leaves.
In summer, it should be placed in a shaded place for care, avoiding strong direct light. However, if the light is too dark, the leaf color will fade. In a dappled shade environment, the leaves are clearly white and green, the internodes are short and compact, and the leaf surface is translucent and glossy. In full shade, it often grows leggy, with longer internodes, soft stems, easy lodging, and a loose plant shape. To enhance the potted ornamental effect of Pilea cadierei, prune regularly during the growing period to encourage branching and maintain a full plant shape. If you want to dwarf the plant, you can prune appropriately or pinch the tips 2-3 times. Be careful not to prune excessively, otherwise it easily leads to many small leaves and affects the ornamental appearance. When the plant grows to about 40 cm, the stems begin to lodge outward. It should be cut back promptly to encourage the lower axillary buds to sprout and grow branches, making the branch cluster dense and compact. You can also plant 3-5 plants in one pot for a lush green look. The suitable growth temperature for Pilea cadierei is 18-22°C, and the overwintering temperature should not be lower than 7°C. The plant grows very quickly, so it is best to repot every April. The pot should be slightly larger but somewhat shallow and well drained. Potted plants should be renewed every 2-3 years. Propagation: generally use cuttings, and division can also be used.
1. Cuttings can be taken in both spring and summer. The high-temperature summer season is not suitable for cuttings, and cuttings in winter grow slowly. Select fully grown branches, cut the stem tip 5-8 cm long as cuttings, retain a few leaves at the tip, and insert them directly into a sand bed with vermiculite or plain sand as the substrate, or insert them into potting soil mixed with peat and soil. The insertion depth should not exceed 2 cm. Place in a semi-shaded place, keep the soil temperature at 18-20°C, spray water with a watering can when dry, and roots will form in about 2-3 weeks. After 1-2 months, they can be transplanted or potted.
2. Division propagation: Pilea cadierei has a very strong clumping habit. When repotting and changing soil, the whole clump can be divided into several parts and potted separately. At the same time, shorten the old stems, keeping 2-3 nodes at the base of the stems. After survival, the axillary buds will quickly sprout and produce new side branches.
Pests and diseases: In the high-temperature summer season, pests and diseases such as scale insects and aphids are likely to occur. They should be scraped off promptly or washed off with soapy water, and in severe cases pesticide spraying can be used for control. In addition, poor management can lead to leaf spot disease, which should be controlled promptly.
How to grow Pilea peperomioides? Cultivation methods and precautions for Pilea peperomioides
Pilea peperomioides is a perennial succulent herb in the family Urticaceae and genus Pilea, named for its leaves resembling a mirror. Pilea peperomioides has a peculiar leaf shape and beautiful posture, is very suitable for indoor planting, has high ornamental value, and is a foliage plant worth promoting. So, how to grow Pilea peperomioides? The cultivation methods and precautions for Pilea peperomioides are introduced below.
Image: Pilea peperomioides
I. Cultivation methods for Pilea peperomioides
1. Soil:For potted Pilea peperomioides, the soil can be a culture soil made by mixing leaf mold, garden soil, and a little river sand, furnace ash, and bone meal. A sandy loam that is loose, fertile, well drained, and rich in humus is best. For home cultivation, it can be made by mixing 3 parts leaf mold + 3 parts garden soil + 2 parts river sand or furnace ash + 1 part decomposed organic fertilizer. When planting, use humus soil mixed with sand that drains well, and place tiles at the bottom of the pot to facilitate drainage.
2. Light:Pilea peperomioides is a shade-tolerant plant, but it also likes light. Strong light is not allowed; scattered light is preferable. If the light is too strong or too shaded, the glossy leaves tend to fade or lose their shine. When too shaded, the leaves also tend to become thinner, and the petioles lengthen, causing the leaves to droop. When the winter temperature is low, full-sun care can be given.
3. Temperature:The suitable growth temperature for Pilea peperomioides is between 15-20°C. For overwintering, it should be kept above 7°C, otherwise it easily sheds leaves or even dies from freezing damage. When the summer temperature is above 30°C, growth stagnation occurs and the leaves easily fall off. In particular, note that a sudden drop in temperature can cause the leaf stems to change color and partially fall off. If the leaves fall off due to freezing damage, but the stems are not damaged, it can be managed with routine overwintering care, and in the following spring it can still leaf out and become a plant again. In summer, do not place it in strong direct sunlight.
Image: Pilea peperomioides
4. Humidity:Pilea peperomioides likes water but fears wet waterlogging. The potting soil can be kept 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, and water should often be sprayed on the growing environment and leaves to increase humidity so that it grows well.
5. Watering:When the winter temperature is below 12°C, the frequency of watering Pilea peperomioides should be controlled, otherwise it easily rots, which is not conducive to overwintering. Keep the potting soil moist often, but avoid waterlogging to prevent leaf discoloration, wilting, or even stem rot. Water according to "water when dry and let it dry out between waterings." To maintain air humidity, spray the leaf surface often. During the entire growing period, the pot soil should remain moist, and in winter it can be relatively drier, but there should not be a dry condition, otherwise the leaves easily turn blighted and black. In dry seasons, spray water often on the leaf surface and around it to create a small humid environment.
6. Fertilizing:Pilea peperomioides is not tolerant of concentrated or heavy fertilizer, so it should be applied little and often, with dilute fertilizer water being 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 are the vigorous growth period for Pilea peperomioides, so fertilizer and water management should be strengthened, and a 0.1-0.5% potassium dihydrogen phosphate solution should often be used for watering or foliar spraying. During spring, supplement a small amount of nitrogen fertilizer from time to time, and in summer apply as little nitrogen fertilizer as possible or none at all. 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 or raw fertilizer will cause root rot or even death of the plant.
Image: Pilea peperomioides
II. Precautions for growing Pilea peperomioides
During the cultivation of Pilea peperomioides, attention should be paid to the prevention and control of pests and diseases. Pilea peperomioides commonly suffers from anthracnose and damage from scale insects. Anthracnose can be controlled by spraying anthracnose Fumei, carbendazim, and the like. Scale insects can be controlled by spraying methidathion, chlorpyrifos, and the like. It is susceptible to leaf spot disease, which can be controlled by spraying a 600 times dilution of 50% carbendazim once every ten days, for 3 consecutive sprays. If there is damage from cottony cushion scale and the like, spray the leaves with a 1000 times dilution of 40% omethoate.
[Editor's concluding remarks]Pilea peperomioides likes a warm and humid environment and is very suitable for potted cultivation at home. The above has introduced the cultivation methods and precautions for Pilea peperomioides, and I hope it can help everyone!