What causes yellowing leaves on wax begonia

In the process of growing them, flower enthusiasts will more or less encounter various situations that affect the healthy growth of wax begonia, such as yellowing leaves on wax begonia. So what causes yellowing leaves on wax begonia? And what should be done about it?

What causes yellowing leaves on wax begonia

1. Abrupt environmental changes cause yellowing leaves on wax begonia: abrupt environmental changes include discomfort with the soil environment. Wax begonia is a flowering plant that loves acidic soil, and leaves gradually turning yellow is caused by the soil being on the alkaline side.

Solution: You can water it with water in which grass has been soaked, and apply a little ferrous sulfate, and the leaves will turn green again.

2. Overwatering causes yellowing leaves on wax begonia (water yellowing): the tender leaves at the top of the plant turn pale yellow, the older leaves also gradually turn yellow, and the new shoots shrivel. This is caused by prolonged rain or overwatering, the soil in the pot being too wet, the soil lacking oxygen, and the roots rotting.

Solution: You should loosen the soil often, control watering, and avoid heavy rain spraying.

3. Long-term lack of water causes yellowing leaves on wax begonia (drought yellowing): when the soil is dry, the leaf color at the top is normal, while the lower leaves gradually dry, turn yellow and fall off from the bottom upward. This is caused by the pot soil being too full or a long-term lack of water, which leads to the aging of the lower leaves and branches.

Solution: You should water appropriately and keep the soil moist.

4. Scorching sun causes yellowing leaves on wax begonia (scorch yellowing): wax begonia is a flowering plant that likes a cool environment, and if it is placed in direct blazing sun, its leaves will also turn yellow and fall off.

Solution: The solution is to transplant it to a shady, ventilated place.

5. Dry air causes yellowing leaves on wax begonia: wax begonia likes warmth and is not cold-tolerant. It grows well in a slightly shady and humid environment and in moist soil. It fears dry environments and waterlogging, and dry air will directly cause the leaves to turn yellow.

Solution: Increase indoor air circulation.

6. Insufficient sunlight causes yellowing leaves on wax begonia (light-deficiency yellowing): potted flowers are often kept indoors, and the plants easily develop yellow leaves.

Solution: Appropriately increase the light duration.

7. Too high a temperature causes yellowing leaves on wax begonia: wax begonia likes a semi-shady environment, and in midsummer, if exposed to high temperatures, the leaf edges will scorch and dry up and the leaves will curl.

Solution: Move it indoors to lower the temperature.

8. Too low a temperature causes yellowing leaves on wax begonia: too low a temperature makes growth slow and the leaves turn yellow.

Solution: In winter, when the temperature is relatively low, it can be placed in a spot with plenty of sunlight.

9. Overfertilizing wax begonia causes yellowing leaves (fertilizer yellowing): when too much fertilizer is applied, the plant's leaves become uneven and fail to spread out, the new leaves are thick and fleshy, and the old leaves gradually turn yellow.

Solution: You should water frequently, stop fertilizing, and you can scatter a few vegetable seeds in the pot and pull out the seedlings after they sprout, so as to consume the excess fertilizer in the pot and restore the plant to normal growth.

10. Long-term lack of fertilizer causes yellowing leaves on wax begonia (fertilizer-deficiency yellowing): the plant's leaves are thin and turn yellow. This is caused by the plant being large while the pot is small, or by not repotting or changing the soil for a long time, as well as by insufficient fertilizer.

Solution: You should gradually increase water and fertilizer, and repot at the right time.

11. Root rot causes yellowing leaves on wax begonia: when the potting soil is excessively wet, it leads to root rot, which makes the leaves turn yellow.

Solution: In mild cases, immediately control watering and move the pot

12. Pests and diseases cause yellowing leaves on wax begonia: in plants affected by stem rot, dark spots first appear at the base of the stem near the soil surface, and after they expand they become brown, shrivel and rot. When the pathogen infects the leaves, it causes dark green water-soaked round spots; when it infects the leaf stalks, they become brown and rot. The leaf color turns yellow.

Solution: In the early stage of the disease, spray with 95% Lüheng No. 1 premium product at 3000 times dilution, or 20% tolclofos-methyl emulsifiable concentrate at 1200 times dilution, 50% liluling wettable powder at 1000 times dilution, or potassium permanganate at 1200-1300 times dilution.