If your lemongrass leaves are turning brown, it can be for a number of reasons. Lack of sufficient water and fertilization are the most typical reason: water sufficiently and fertilize monthly. If the leaves have yellow spots and brown streaks, and if it has brown pustules under the leaves, it may be the fungal disease known as rust caused by, among other things, excessive water. Prune diseased leaves and avoid overwatering. Reddish brown spots on tips signify leaf blight. Prune infected leaves and apply the appropriate fungicide.
- Lemongrass is a delicious citrus scented grass that is used in many Asian dishes. It also makes a lovely, easy to grow addition to the garden. Easy to grow it may be, but not without issues.
- Lemongrass is native to areas with regular rainfall and high humidity so they may need more water in the home garden than other plants.
- Rust spores survive on lemongrass debris on the ground and is then spread by wind, rain, and water splashing.
“Lemongrass is a delicious citrus scented grass that is used in many Asian dishes. It also makes a lovely, easy to grow addition to the garden.”