top side of leaf

My guess is the coco holds too much water. Avocados don't have water or hair roots, their main roots are very sensitive to too much water. That said, they love water. I have my big avocados in 5-1-1 and I water them more than anything else, except many the bananas. When I repot, I'm going to do a 5-1-1 mix with more turface to hold water. It'll still drain quickly but in 5-1-1 I have to water 2-3 times a day.

Also, go check out Greenman28's posts in the container forum about growing avocados from seed in pots, he does it really well.

This post was edited by Jay-Part-Shade on Tue, Oct 14, 14 at 13:44

Im growing Avacados and Mangos in Florida in the ground. We are in So. Florida. Trees are 1 1/2 yrs old and have tripled in size. They are planted in pure sand. No mulch, no nothing. We hardly water them because we do not have sprinklers and only use water for the flowers.

Being new to these trees, my guess is they like to grow roots in a very well drained media (sand). They go dry for months on end.

Of course, in a container, your can't let they dry out like Florida. I would repot in Spring. Get them out of coco fibre and plant in something that drains quickly. You could use a potting soil and mix a bag of perlite into it so you get good drainage. That's the easy way I would probably take. You could also mix some pine bark into MG potting mix (or whatever you like) and add perlite to that.

My trees are growing in full Florida sun. These trees need strong light.

Good luck,
Jane