I grew my avocado plant from a seed last year and it has been growing fine, but a while ago the leaves turned brown and fell off. I thought it was because it grew out of the pot and transplanted it, but its turning brown from the top of the stalk down, can I save it?
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You probably have an accumulation of salt in the soil. Water deeply and less frequently. Water before and after you fertilize.
Maybe you already know this but avocado plants grown in a container do not always do as well as outdoors.
Here is a very good link that explains about container grown avocados.
www.logees.com/
In answer to your question this info is from the Florida Extension service:
Salts in the water and in fertilizer build up over time. Browning usually occurs on the old leaves first. This excess salt accumulates in the leaf edges, where it kills the tissue and the leaf dries out and turns brown. It's important to water deeply and slowly. At least once a month, water deeply enough to "leach" or push salts well below the root zone. Frequent, light "sprinklings" allow salts to accumulate in the top layers of soil, where the roots are, which is bad news.
I'd start by flushing your plant with water under a hose or faucet and let the water run out the bottom to leach away possible salts. Then examine the plant's environment for appropriate lighting and watering. I'd also hold off on fertilizer for a month to see if there's any improvement. Fertilizer "forces" a plant to grow, which can be stressful if the plant isn't healthy.
Here is a link to find your state extension service address and you can ask them any question pertaining to problems with growing plants or flowers in your area.
Trees such as Avocado plants need a lot of room to grow and spread their roots. It is fine to start growing the plant in a pot from a seed in the beginning. After it reached a certain height it needs to be transplanted in the ground.
It is a sign of salt burn caused by a salt build up in your soil.There is salt in the water and fertilizer.Then it dries out the leaves and they turn brown.Water deeply and slowly about once a month.This will push the salt well below the root zone.Always water plants before and after fertilizing.Flush your plant with water under a faucet or hose letting the water run out the bottom so the salts run out.Wait a month before you use fertilizer.Make sure it does not have too much sunlight this can turn your leaves as well.
Browning leaf tips are often a sign of salt burn, caused by a salt build up in the soil. Salts in the water and in fertilizer build up over time. Browning usually occurs on the old leaves first. This excess salt accumulates in the leaf edges, where it kills the tissue and the leaf dries out and turns brown.Take it outside and water it slowly but deeply flushing out the salt build up below the root zone.Wait one month before fertilizing.
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