Well, since you have several, I suggest you begin fertilizing one of them at least. Avocados are hungry plants, very vigorous, and so they can make use of nutrients. That first one may already be too far gone. Josh

k, Ask this question on the Bonsai Forum. My guess it needs be taken outside and give high temps, high humidity(water tray) and plenty of water. Only bring in doors when it gets cold. It is a tropical plant. JMHO Aloha

Hmmmm....well, if the roots looked good then your plant shouldn't be in any danger, it is probably transitional. Did you notice any softness or discoloration of the roots? The change in the soil should make a HUGE difference - Walmart soil is very heavy with peat and doesn't drain well. If you notice any tiny webs or spots on the leaves it could be spider mites. It's not directly under a vent or anything is it? I can't really think of anything else, maybe someone else can add some more info. Keep an eye on it and try to give it as much sunlight as you can and I bet it will bounce back. Keep us posted!

Yes, younger leaves are actually the most sensitive. I grew up in Westchester...and I know your weather is good for avos. But, this Santa Ana condition (coming in again tomorrow) is rough on the trees. Actually, dwarf trees are the most vulnerable because of their limited roots to take up moisture. Your soil is probably pretty sandy...so you need to be diligent about keeping your soil moist. I have shadecloth that I use on occasion to combat intense sunlight during heatwaves. Also, avos do shed their leaves (all at once) in the Fall (usually). ED of Somis