What's happening to my olive tree?

Asked April 19, 2015, 11:58 AM EDT

I have been growing this weeping olive tree in a pot on my deck for 15 years. Of course I bring it inside for the winter. I try not to over water, but wonder if I did for the past month, when I watered and fertilized (Miracle Grow) every week. The tree began growing well, then suddenly some leaves showed a drying pattern, while others began to be stunted and curled. The tree is about 4.5 feet tall. The tree has never bloomed (hints accepted!)

Baltimore County Maryland fruit houseplants olive tree

1 Response

We do not have a lot of information on growing olive trees in containers. From your description it sounds like you may have overwatered. Also, you may be applying too much fertilizer to the plant. If the tree has never been repotted it may be time to repot, especially if you are seeing roots coming from the bottom of the container or surface roots on top of the soil.
Knock the plant out of the pot. Make sure there are no black mushy roots. If so, prune off. Roots should be firm and white. Repot into the next size container or if you keep in the same container Repot with fresh potting soil. Water when the top inch of soil dries slightly to the touch. Fertilize every two weeks when actively growing in the summer only. You can use the above fertilizer.
Some varieties of olive are fruitless.
See the attached in for more information http://ediblelandscaping.com/careguide/Olive/
http://olivetreegrowers.com/olivetrees.php
http://aggie-horticulture.tamu.edu/fruit-nut/files/2010/10/olives.pdf
mh