What Causes the Drying of海棠 Leaves
As a classic potted plant that combines ornamental value and vitality, the issue of海棠 leaves drying up troubles many plant enthusiasts. This article systematically sorts out the five core causes and solutions through field observation and gardening experience, helping you accurately diagnose the plant's condition.
Misunderstandings in Light Management
Imbalance in Light Intensity and Duration
Most people believe that海棠 is shade-tolerant, but in fact, it requires 4-6 hours of scattered light daily. It is recommended to pair a north-facing balcony with a supplementary light source, and in winter, it can be exposed to full sunlight. However, be aware: yellowing of new leaves may be a sign of sunburn, and it is suggested to use a shade net as a transition.
Optimization of Ventilation System
Stereoscopic Circulation Scheme
In a closed environment, a mini circulation fan (wind speed ≤ 2m/s) can be installed, combined with a water tray to create a microclimate. Important tip: avoid placing it directly in front of an air conditioner vent, as sudden temperature changes can lead to stomatal closure problems.
Water Control Technology
Intelligent Monitoring Solution
It is recommended to use a soil moisture meter (insertion depth 5cm), keeping the value at 40-60% as appropriate. Advanced technique: using ceramsite as a base plus siphon-type watering can maintain stable moisture for two weeks.
Strategies for Nutrient Supply
Dynamic Fertilization Formula
During the growing period, follow the N-P-K = 15-5-10 ratio, and switch to 3-12-6 during the flowering period. Special reminder: use an EC pen to test soil salinity monthly, and if the value is >1.5ms/cm, it is necessary to leach the substrate.
Monitoring Root Health
Annual Potting Guide
Conduct root examinations in spring and autumn, removing browned roots (retaining white new roots). After repotting, use HB-101 vitality booster at 2000 times dilution to water the roots, which can increase the efficiency of capillary root regeneration by 30%.
Through precise control of light, water, and fertilizer, combined with regular health checks, it usually takes 3-5 growth cycles for the海棠 plant to recover its vitality. It is recommended to establish a maintenance log, recording daily environmental parameters and plant responses to gradually form a personalized maintenance plan.