Ask a Question forum→Avocado plant needs help

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Name: Sandeep Virk
Washington (Zone 7a)
ssv537
Dec 7, 2020 11:20 PM CST
Dear Community,

Hope everyone is doing well and staying safe.

We have a 2 year old Avocado plant in a pot in regular potting mix.

Just before the temperatures started to fall, we put it in the sun room and now it's in pretty bad space. There are new leaves coming in but they seem to start curling after they get a few inches long, get crunch to touch and then die and fall off.

I did put some blood fertilizer in the pot about 4 weeks back.

Please advise.

Best Regards
SSV
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Name: Daisy I
Reno, Nv (Zone 6b)
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DaisyI
Dec 8, 2020 12:16 PM CST
I can see a couple problems but also have some questions:

Did the dry small leaves start after adding blood meal?

Are there bubbles on the leaves? Or are they just wet in your photo? Could you post a photo of just the leaves at the top of the plant?

How wet do you keep the soil?

It is suffering from insufficient light.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

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Name: Sandeep Virk
Washington (Zone 7a)
ssv537
Dec 8, 2020 1:29 PM CST
Thank You Daisyl for your response.

To ans your questions:
1. blood meal: the problem had started before adding the fertilizer.
2. Bubbles: Those are water droplets on the leaves.
3. The soil was wet for the last few days but it is now drying out. We water the plant when the top 1 inch of the soil feels dry.
4. Please see the picture of where it's placed in the sun room, so the plant does get light all day.

Best Regards
SSV
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Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
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DaisyI
Dec 8, 2020 4:06 PM CST
Here's my thoughts:

Your tree is either over- or underwatered. Its hard to tell the difference because both cause the same problem - a failing root system unable to support the tree anymore. What kind of soil is the tree planted in? How big is the pot? How well does it drain? You can check for moisture in the bottom of the pot with a bamboo stick or dowel. Push the stick to the bottom of the pot, leave it for a minute and pull it out. What you have is a record of how wet or dry the soil is all the way to the bottom of the pot. What does the stick say? Too wet or too dry?

Avocados appreciate nitrogen but overall, they are low nutrient need trees. I suspect you are going to find the blood meal was a mistake and your tree is suffering an over-dose of nitrogen (which pretty much looks like a nitrgen deficiency). Use a citrus and avocado fertilizer 3 times a year while the tree is in active grow. Citrus/avocado fertilizer is formulated specifically for citrus and avocados. Trees grow more slowly than houseplants so need a lot less fertilizer. Mix the fertilizer at 1/3 to 1/2 the recommended strength because the tree is in a pot.

Even though your tree is in a sunroom, its not getting enough sun. If it were, the begonia wouldn't be looking so good.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

President: Orchid Society of Northern Nevada
Webmaster: osnnv.org
Name: Lynda Horn
Arkansas (Zone 7b)
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gardenfish
Dec 9, 2020 4:36 AM CST
I agree overall with Daisy. It's really hard on avocado trees when they have to be brought in for the winter. I've had mine nearly four years, and received it as a large tree, so I really don't know how old it actually is. I have mine in a large, south facing window, and really, it's still not enough light. I do lose leaves on it, and the growth rate goes way down, even though it will produce new leaves. I have found that avocados planted in pots really need more water that you would suspect that they would. I water mine every three days; but arrived at this schedule from these years of observation of my plant. Mine also likes to be crowded pot wise, another reason it needs more water. It always rebounds well when it gets moved out in the spring. Because mine is a mature tree now with many branches, I am considering supplemental lighting to make it happier in the winter; you might want to do the same. I never fertilize in the winter, and as Daisy suggested, use the specific fertilizer for it in the summer, which I also use on my lime tree.
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