All sorts of plants can be affected by leaf burn, particularly during the hottest times of the year.
Leaf burn on plants looks awful and is very frustrating to the plant-lover, but luckily there are some easy precautions that you can use to avoid having this problem.
The most common cause of lear burn is from spraying water, fertilisers or chemicals onto the plant’s foliage in hot, sunny weather. Think of the water on the leaf as a magnifying glass – it only intensifies the sunlight on the leaf and causes it to overheat and then burn.
Make sure that you are watering or fertilising your plants in the morning, before the sun gets too strong, or do it later in the afternoon. Never do it in the middle of the day when the plant is getting direct sunlight. If for some reason you do need to water a plant in the middle of the day, and it’s in direct sunlight, then only water the soil & don’t wet the foliage.
When spraying soluble fertilisers or chemical sprays onto plants, always follow the directions for application and dilution rates on the packet. Overdosing chemicals can also be a cause of leaf burn or damage.