What to Do When Boston Fern Leaves Turn Yellow? Plus Division Propagation Methods

The Boston fern is a warmth-loving plant that grows best under warm climatic conditions. Boston ferns are currently very popular on the market, and many people like to buy them and take them home to grow. During the process of growing them, problems with cultivation techniques may arise, causing the leaves to turn yellow, so how should this be handled?

Causes of Boston Fern Leaves Turning Yellow

1. When growing a Boston fern, if the soil used cannot meet the growth needs of the Boston fern, it will lead to poor growth, and the leaves will turn yellow and drop off.

2. When growing a Boston fern, although sufficient light is needed, be careful not to let strong direct sunlight hit it, otherwise it easily causes the leaf edges of the Boston fern to scorch and the leaves to turn yellow.

3. When growing a Boston fern, if watering is insufficient or the air is too dry, the Boston fern's leaves will turn yellow or develop scorched edges.

4. Improper fertilization mainly refers to fertilizing too much or contaminating the leaves during fertilization, which will cause the Boston fern's leaves to become scorched yellow.

5. If the Boston fern is not pruned in time during care, branches and leaves may become messy and crowded, and overly dense branches and leaves are not conducive to the growth of the Boston fern.

Solutions for Boston Fern Leaves Turning Yellow

1. When growing a Boston fern in a pot, you can use soil made by mixing garden soil, river sand, and leaf mold.

2. When growing a Boston fern, if there is strong sunlight outdoors, shade it in time. When growing it indoors, you can place the Boston fern on an east- or north-facing windowsill for care.

3. When growing a Boston fern, watering must be sufficient, and during vigorous growth, you also need to spray water on the leaves every day.

4. When growing a Boston fern, watering must be sufficient, and during vigorous growth, you also need to spray water on the leaves every day.

5. In daily care, pruning is very important. If you find dead leaves, cut them off in time, which also helps new leaves sprout. Every autumn, the old leaves should also be pruned appropriately, so as to avoid too many branches and leaves, which makes growth weak and causes the leaves to turn yellow.

Boston Fern Division Propagation Methods

1. Division propagation of the Boston fern can be carried out in spring, summer, and autumn. Division in early spring from April to May can be done together with repotting.

2. In early summer, the stolons growing on the plant will grow rapidly and produce small plantlets with roots. In summer, choose vigorously growing plants, then cut off the above-mentioned small plantlets with roots and plant them separately.

3. When dividing together with repotting, first turn the plant upside down and tip it out of the flowerpot, shake off all the old soil, then cut it into several clumps and plant them separately, then place them in a shaded place. After about a week, they can be cared for normally.

4. For potting, the soil can be a mixed growing medium of leaf mold, river sand, and garden soil. If sphagnum moss can be used as the growing medium, that would be even better.

Boston Fern Pest and Disease Control

1. Brown spot disease. It can be controlled by spraying agents such as 50% carbendazim 1000-fold solution, 50% thiophanate-methyl 1000-fold solution, and 200-fold Bordeaux mixture. Too much watering or excessive humidity also easily causes brown spot disease. In the early stage of the disease, it can be controlled by spraying agents such as 70% thiophanate wettable powder 800-1000-fold solution.

2. Nematode disease. Using insecticides such as 10% fosthiazate, cadusafos, or 25% ethoprophos, then covering with fresh loess after application and irrigating with a small amount of water, can significantly reduce the population density of root-knot nematodes. There is also the method of using hot water treatment to control nematode infestation of bird's-nest ferns, soaking the plant in 43°C hot water for 10-15 minutes before planting.

The causes of Boston fern leaves turning yellow are generally due to watering, fertilization, light, pruning, and other aspects, so when this situation occurs, find the cause and then solve the problem at its root. If you want the Boston fern to grow well, division propagation is essential. The specific methods have been introduced in detail above, and I hope they can be helpful to everyone.