Why do the leaves of the transplanted gardenia wilting
Gardenias are loved for their pure white and fragrant flowers, but wilting of leaves often occurs during the transplanting process, causing concern. This article will systematically analyze the deep reasons for the dehydration and wilt of gardenia leaves after transplanting from three dimensions: soil environment, temperature control, and acclimatization patterns, and provide professional solutions.
I. Imbalance in Soil Environment Causes Wilt
1.1 Soil pH Imbalance
Gardenias are typical acid-loving plants. When the soil pH value is greater than 6.5, the roots may experience iron absorption障碍. Using alkaline soil during transplanting can cause the veins of young leaves to yellow, followed by the wilt and droop of leaves.
1.2 Insufficient Matrix Permeability
When using heavy, compacted soil, the roots cannot breathe normally. It is recommended to mix decomposed leaf soil, pine needle soil, and river sand in a ratio of 4:3:3 to ensure that the drainage holes are unobstructed.
II. Sudden Temperature Changes Trigger Stress
2.1 Seasonal Adaptability Differences
Transplanting in spring and autumn should avoid late spring cold, and winter transplanting should set up a windbreak shed 15 days in advance. When the environmental temperature is less than 10°C, the root activity decreases, leading to impaired water transportation.
2.2 Day-Night Temperature Regulation
After transplanting, it is necessary to maintain a reasonable gradient of 18-25°C during the day and 12-15°C at night. For ground-planted plants, a 5cm thick layer of pine needles can be used to insulate the roots.
III. Root Recovery Cycle Patterns
3.1 Normal Potting Reaction
7-15 days after transplanting is the period of root remodeling, during which slight wilting of old leaves is a normal phenomenon. This can be supplemented with a foliar spray of 0.1% potassium dihydrogen phosphate.
3.2 Abnormal Wilt Judgment
If new leaves continue to droop 20 days later, it is necessary to check for soil-borne diseases. You can water with a 800x solution of carbendazim and simultaneously increase 50% shading net to avoid strong light transpiration.
By precisely controlling soil pH, maintaining an appropriate temperature gradient, and scientifically managing the acclimatization period, the survival rate of transplanted gardenias can be significantly improved. It is recommended to test the soil EC value monthly and use chelated iron fertilizer to keep gardenias continuously blooming like jade white flowers.