Coral Elm Cultivation Methods and Precautions
As a courtyard绿化 species with high ornamental value, the Coral Elm is deeply loved by horticulture enthusiasts for its unique leaf shape and elegant tree posture. However, to make it show the best growth state, it is necessary to master scientific maintenance techniques.
Scientific Substrate Preparation
Nutrient Soil Mixing Ratio
It is recommended to mix humus soil, plant ash, and river sand in a ratio of 6:3:1. This formula ensures that the soil is loose and breathable while also being rich in trace elements. Adding 5% bone meal during the potting in spring every year can enhance soil fertility.
Substrate Disinfection Method
The newly prepared soil needs to be treated with high-temperature steam or exposed to sunlight for 3-5 days to effectively kill eggs and germs. Adding a 3cm layer of ceramic stones at the bottom of the pot can improve drainage.
Water Management Tips
Watering Schedule for Seedlings
Keep the soil moisture of newly planted trees at 60%-70%, using the immersion pot method to replenish water every 5 days. For mature trees, water thoroughly every 10 days in summer and control water to once a month in winter.
Rainy Season Protection Measures
For outdoor cultivation, a drainage ditch should be set up, and for pot cultivation, the pots should be elevated. After consecutive rainy days, spray 0.1% carbendazim to prevent root rot.
Nutrient Supply Plan
Fertilization Cycle Design
Apply diluted soybean cake fertilizer every 20 days from March to June, switch to phosphorus and potassium fertilizers from July to August to promote lignification, and stop fertilizing from September. Note that fertilizers should be applied 15cm away from the main stem in a circular pattern.
Special Nutrient Supplement
Every early spring, apply slow-release compound fertilizer granules, and spray boron fertilizer solution before flowering to improve fruit setting rate.
Lighting Control Techniques
Ideal Lighting Intensity
Seedlings require 50% shading net protection, while adult trees can be exposed to full sunlight. Avoid direct strong sunlight at noon in summer to prevent leaf burn.
Winter Lighting Strategy
In the northern regions, move the plant to a sunny spot after entering winter, ensuring 4 hours of direct sunlight every day. Using a plant growth light can maintain the green state of the leaves.
Through systematic maintenance management, the Coral Elm can form a beautiful umbrella-shaped canopy. Regularly pruning dense and diseased branches, and combining proper traction shaping, can make the plant present a better ornamental effect. It is recommended to change the potting soil every two years, combined with root pruning to promote new root development.