I recently planted a grafted avocado tree, coastal sandy soil. I used compost and mulched with mushroom compost, in the ground about a month now. Looked healthy for a few weeks, but now the leaves are all turning brown. The tree is at Bribie Island. Your help would be greatly appreciated. Dools.
Certified GKH Gardening Expert
Transplant shock can cause browning and dropping leaves in the first few months after planting. See this article:
Here are some general causes of browning leaf edges and tips:
Strong sun and winds could also damage leaves. Young avocado trees are sensitive to strong sunlight, so providing it with some shade could help. Here is some more advice about avocados: