What to Do When the Leaves of a Newly Bought Aglaonema 'Lady Valentine' Turn Yellow? Growing Methods and Precautions

Aglaonema 'Lady Valentine', also known as Lucky Evergreen, Painted Chinese Evergreen, and Painted Aglaonema, is a herbaceous plant. It grows 30-40 cm tall, with upright unbranched stems and distinct nodes, beautiful leaf color, and is especially shade-tolerant. So, what should you do when the leaves of the Aglaonema 'Lady Valentine' you brought home turn yellow? What are the growing methods and precautions?

I. What to do when the leaves of the Aglaonema 'Lady Valentine' you brought home turn yellow?

1. Color: water yellow

Possible cause: The flower pot of the Aglaonema 'Lady Valentine' holds too much standing water and has been wet for too long, which causes the soil to lack oxygen, leading to rot of the root system of the Aglaonema 'Lady Valentine' and even weakening its ability to absorb nutrients.

Treatment: When this happens, loosen the soil immediately, control the amount of watering, and stop fertilizing. In severe cases, you can take the Aglaonema 'Lady Valentine' out of the soil, place it in a shady spot to dry, and then refill the soil.

2. Color: fertilizer yellow

Possible cause: Because we fertilized too much or the fertilizer concentration was too high, especially excessive nitrogen fertilizer, which causes yellow leaves. It shows as new leaves being glossy but not flat enough, while old leaves gradually turn yellow and drop off.

Treatment: At this point, stop fertilizing and appropriately increase the amount of watering to dilute the fertilizer concentration, then repot with fresh soil. These tasks are usually done in the rain.

3. Color: alkaline yellow

Possible cause: The Aglaonema 'Lady Valentine' often suffers from chlorosis and yellowing because the soil is too alkaline. The yellowing appears between the veins of the branches and leaves, but the veins, especially the main veins of the Aglaonema 'Lady Valentine', remain green, showing a very obvious color contrast. After a period of time, as the yellowing of the leaf surface deepens, the main veins also gradually lose their green surface, and finally the entire Aglaonema 'Lady Valentine' turns white, the leaf edges scorch, the leaves wither, the branch tips die back, and even the whole plant dies.

Treatment: In this situation, our main goal is to change the soil. You can apply alum fertilizer to achieve the purpose of fertilizing and watering.

4. Color: drought yellow

Possible cause: The Aglaonema 'Lady Valentine' may go without water for a long time, or be watered insufficiently, causing the leaf surface or branch tips to turn yellow. At this time, old leaves also wither and drop from bottom to top, but new leaves generally grow normally.

Treatment: When this phenomenon occurs, the Aglaonema 'Lady Valentine' should be given more water.

5. Color: shade yellow

Possible cause: The Aglaonema 'Lady Valentine' likes sunlight, so insufficient indoor sunlight will cause its branches and leaves to turn yellow.

Treatment: At this point, move the flower pot outdoors to a ventilated place with direct sunlight.

II. What are the growing methods and precautions for Aglaonema 'Lady Valentine'?

1. Division: Carry out in spring together with repotting. Take the overgrown large plant out of the pot and divide it into several clumps, remove excess old leaves and withered yellow leaves, keep 5-6 leaves per clump, and then plant them separately.

2. Sowing: Usually done in spring. The suitable temperature for germination is 15-20°C, and germination occurs 15-20 days after sowing. The germination rate is high, and the seedlings emerge evenly.

Precautions for growing Aglaonema 'Lady Valentine'

1. Temperature

Variegated Aglaonema likes warmth, and the most suitable temperature for growth is 13-18°C. It is fairly cold-tolerant and can endure low temperatures of -5°C in winter, but it is best to keep it above 0°C.

2. Light

Variegated Aglaonema likes light and tolerates partial shade. But it should avoid intense direct sunlight. Under full sunlight, the plant grows poorly and becomes short, the leaves turn yellow, and the leaf margins become scorched. From May to September, shading should be provided, or it should be placed in a semi-shaded place such as under a large tree. Sufficient scattered light can keep the leaves green and glossy. It also dislikes too much shade. When light is insufficient, the leaf surface lacks luster, the beautiful spots become dull, and it is difficult for it to bloom.

3. Watering

Variegated Aglaonema tolerates shade and moisture, and also tolerates drought, and likes a moist soil environment. During the growing season, water adequately to keep the potting soil moist but not overly wet and not waterlogged, otherwise it will cause root rot. In summer, water is lost relatively quickly, so water a bit more; in winter, control the amount of watering and just keep the potting soil moist.

4. Fertilizing

During the growing period, the nutritional needs are relatively high. Apply fertilizer once every half month, and make sure to balance nitrogen, phosphorus, and potassium so that the plant grows robustly and has bright colors. Too much nitrogen fertilizer will make the leaves grow too large and soft, making them prone to lodging, and will also make the color spots on new leaves smaller, or even turn completely green. Fertilizing should stop in winter.

5. Pruning

Withered yellow leaves and old leaves in poor condition should be cut off at any time.

6. Repotting

Potted plants should be repotted once every spring, and ground-planted ones should be replanted once every 3-4 years. It is not picky about soil, but loose, fertile, and well-drained soil is best; it can grow in slightly acidic to slightly alkaline soil with a pH of 5.5-8. The growing medium can be prepared from materials such as leaf mold, garden soil, rice husk ash, or coarse sand.