Apricot and Apple Tree Growing Poorly

Q. My apple and apricot trees have small leaves and not much new growth. The few dark green leaves are almost dead. I fertilized the plant in the prescribed periods and watered the plant as in previous years. The apple tree made flowers but few fruits. The apricot had lots of apricots and dropped some earlier but few green leaves.

Apricot tree sparse and not filling in properly. Having a tree with the canopy this open can lead to borer problems if it doesn't already have them.

Apple tree is sparse. The same thing applies to Apple trees. They need enough water and a big enough basin to water the roots, nutrients which we supply through rich compost or fertilizers, and a surface mulch which decomposes to enrich the soil.

A. Thanks for the pictures. I think the problems are a combination of water, fertilizer and soil. As you know, the trees should be thick and dense this time of year. They are not because, I think, they lack these three ingredients.

Water

Your trees are about 8 to 10 feet tall and would need about 20 to 30 gallons of water every other day during the hot summer months. As trees get older and larger, they need more water. That works out to about 75 to 100 gallons each week.

            There is a basin at the bottom of the tree that is maybe 3 feet in diameter. Increase the size of that basin to about 6 feet in diameter or 3 feet from the trunk in all directions. That will accommodate more water and spread it about a foot beyond the basin.

Compost or fertilizer

            Spread about 1 cubic foot of good quality compost in the basin away from the trunk before you water it again. This compost should have a high nutrient content such as Viragrow’s. Many do not.

            After rebuilding the basin in a six-foot diameter around the tree and applying compost, fill the basin with a hose or sprinkler on the end of a hose. Fill the basin twice.

Mulch

            Cover the soil in the basin with woodchips from local trees if you can find them. If you can’t find any, use straw 4 to 6 inches deep until you can find some woodchips.

            Increase the amount of water to the tree by covering that soil with about one – two inches of water flooding the basin. Water the tree three – four times per week using this basin and flooding technique. You should see new growth starting in about 7 to 10 days.

Leaf Cupping Normally Aphids...But Not This Time!

Q. My Blenheim apricot tree planted in 2012 is not doing well. A few branches have lost all their leaves. Other leaves are starting to curl and cup. This year it had plenty of apricots but few leaves. I thinned them out since the tree is young.

Growing Fruit Trees in Containers and Transplanting Into the Ground

Q. I would like to plant some trees in containers until I can plant them in my yard in a few years. Can they stay in containers if I'm careful with them?  I'm thinking about apricot, pluot, orange and maybe a pomegranate.

A. If you have purchased these in containers you will probably not want to keep them in the same container more than perhaps that single growing season if you plan to plant them in the yard. Generally speaking, if you plan to replant them then they should be moved into progressively larger containers or the roots will be permanently damaged. Eventually, the containers you'll need will have to be large, whiskey barrel-sized or larger.

15 year old Gold Kist apricot at the orchard with minor
pruning for size control

            Once these trees start to get bigger they will transplant into the yard with more and more difficulty. This just means they are more likely to suffer from transplant shock and recover from this shock more slowly when moved. I would recommend that if you want fruit trees in containers then keep them in the container permanently. When you are ready to plant in the yard then purchase trees specifically for the yard.

             Of the group you mention, citrus is probably the best choice for a container. Try to locate a citrus on a dwarfing type of trifoliate orange rootstock. Trifoliate orange rootstock is very cold tolerant which you will need in our climate unless you can protect the plant from freezing temperatures. There are a few selections of trifoliate orange rootstock that are more dwarfing than others. Focus on these if you can find them.

            My next choice for a container might be one of the smaller pomegranates like the variety ‘Sweet’ which would be a better choice for containers as opposed to ‘Wonderful’. The fruit is excellent, as good as or better than ‘Wonderful’.

Read about Sweet pomegranate at Dave Wilson Nursery

            If you select an apricot then I would pick one of the miniatures like ‘Pixie-Cot’ or a standard sized tree like ‘Gold Kist’ which tends to stay smaller when on Nemaguard rootstock at least.

Read about Pixie cot and Gold Kist at Dave Wilson Nursery

            Among the pluots for a container I would probably pick ‘Flavor King’ which stays naturally smaller than some of the other pluots but it will need a pollenizer tree such as ‘Santa Rosa’ plum.

Read about Flavor King pluot at Dave Wilson Nursery

            Don't expect these trees to be long-lived if you keep them in containers. I hope this helps.