Methods and Techniques for Cultivating Plumbago auriculata
Let's share the cultivation methods and techniques of Plumbago auriculata, as well as insights into the growing points of this green plant. Follow our editor to explore the specifics!
Also known as Plumbago auriculata, the blue hydrangea, blue leadwort, and blue jasmine, this plant is native to the southern part of South Africa and belongs to the Plumbaginaceae family, Plumbago genus, as an evergreen, tender, semi-shrub. When caring for Plumbago auriculata, you can choose a pot and soil with good ventilation and drainage, provide appropriate shading in strong sunlight, place it outdoors regularly in low indoor light, and keep the temperature between 22 to 35°C as optimal. Watering should follow the principle of "watering when dry and stopping when wet," and applying a compound fertilizer every 7 days during the growing period.
I. Maintenance Methods
1. Potting Soil
For maintaining Plumbago auriculata, you can choose a clay or ceramic pot with good ventilation and drainage. Select soil that is loose, well-draining, and rich in humus. A mixture of 3 parts decomposed leaf soil, 3 parts garden soil, 2 parts humus soil, 2 parts peat soil, and a small amount of base fertilizer can be used to create a cultivation soil. Before filling the pot with soil, cover the bottom with a layer of broken tiles to aid drainage, and expose the cultivation soil to the sun for 1 to 3 days for sterilization before planting.
2. Light
Plumbago auriculata prefers light, can tolerate shade, and avoids direct sunlight. During summer, it can be placed outdoors to receive 4 to 5 hours of light in the morning or afternoon. In spring, autumn, and winter, it is necessary to enhance light exposure and appropriately extend the duration of sunlight. Keeping the temperature at 7 to 12°C when exposed to light in winter is best to prevent high temperatures from causing new buds to sprout prematurely, which may lead to poor growth in spring.
3. Temperature
Plumbago auriculata is a tropical shade plant that prefers a warm environment, is intolerant to cold and high dry temperatures, and has an optimal growth temperature of 22 to 35°C. When temperatures exceed 35°C in summer, spray water on the plant and its surrounding environment to cool it down. In winter, when temperatures fall below 6°C, move the plant to a warm indoor area to prevent frost damage.
4. Watering
Watering Plumbago auriculata should follow the principle of "watering when dry and stopping when wet." Water the plant when the topsoil is dry until water seeps out from the bottom of the soil, then stop. Generally, water twice a day in summer to keep the soil moist, once every 10 to 15 days in spring and autumn to keep the soil slightly dry, and water once before winter sets in, then maintain the soil slightly dry.
5. Fertilizing
Fertilizing Plumbago auriculata should be done in small amounts multiple times, applying thin fertilizers frequently, and applying near the root zone to avoid root rot and plant damage from excessive concentration and quantity. During the growing period, apply a nitrogen-rich, phosphorus-supported compound fertilizer every 7 days.
II. Cultivation Tips
1. Pruning
Pruning is necessary during the vigorous growth period and after flowering to remove withered, diseased, and overly long branches, reducing the plant's nutrient consumption and retaining nutrients to promote new branch growth.
2. Propagation
Plumbago auriculata can be propagated by播种 (播种 is the Chinese word for sowing seeds). In spring, soak the seeds in warm water for 2 hours to stimulate germination, then evenly sprinkle them on a moist seedbed, cover with a thin layer of soil, and spray water when the seedbed is dry to keep it moist. Seeds will germinate in about 7 days, and seedlings can be transplanted after growing 3 to 4 true leaves.
II. Precautions
1. Yellowing Leaves
If the leaves of Plumbago auriculata turn yellow during maintenance, it may be due to insufficient light. The plant needs to be placed outdoors to gradually increase the duration of sunlight.
2. Root Rot
Excessive watering can cause accumulated water in the potting soil, leading to root rot. It is necessary to dig the roots out of the soil, cut off the rotting, withered, and dense roots, apply多菌灵 (a fungicide) for disinfection, let them dry in a ventilated area until the wounds contract, and then replant in new soil.
The above is a detailed introduction to the cultivation methods and techniques of Plumbago auriculata and the key points of its cultivation. Have you understood?