What to Do When Wintersweet Leaves Turn Yellow? Find the Cause and Treat It Accordingly

1. Too Much Water

This plant can withstand arid climates, but on the other hand, it greatly fears waterlogging, so yellowing leaves may be caused by watering too frequently. The characteristic of this cause is that the old leaves show no obvious change, but the relatively young leaves turn yellow. At this point, we should immediately control the amount of water applied.

2. Too Little Water

Even though this plant is suited to drought, it still needs a certain amount of water for its growth, so how does this show? Generally, if the yellowing is caused by a lack of water, it shows as the old leaves starting to turn yellow from the bottom upward. If the water shortage lasts a little too long, it will cause the whole plant to turn yellow, or even the whole plant to die. At this point, we should water immediately.

3. Fertiliser Too Concentrated or Applied Too Frequently

This plant should be fertilised once each year after the flowers fade, then from when new leaves grow in spring until June, the peak growing season, roughly once every 10 days to 15 days, with another application in July to August, and another after autumn. If fertiliser is applied too frequently, or applied in seasons that are not suitable for frequent fertilising, the young leaves will become thick, glossy and uneven. At this point, the amount of fertiliser should be controlled.

4. Insufficient Fertiliser

It may be because not enough fertiliser was applied or the interval between applications was too long. This shows as the young leaves and tender stems turning yellow first. If you see this and still do not fertilise immediately, it will cause the whole plant to turn yellow or even die. If a flowering plant lacks fertiliser, do not apply a large amount of concentrated fertiliser all at once, otherwise root burn may occur.

5. Iron Deficiency

This plant sometimes develops yellow leaves because the soil's fertility conditions change too greatly. This shows as the young leaves turning noticeably yellow, while the old leaves are only mildly affected, with the leaf tissue appearing yellow and the veins appearing green. At this point, a solution containing ferrous sulfate can be applied.