I am having a problem with my olive tree
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This article will help you to care for olive tree: https://www.gardeningknowhow.com/edible/fruits/olive/olive-tree-care-information.htm
There are also a couple of plants around the base of the tree. I am worried that weed killer will kill the tree? I would like to get rid of the weeds and then have plants around the base of the olive tree. Any advice on those plants would also be much appreciated. Many thanks
Any tree in container has the advantage of being confined. Pulling them by hand will be the best way to deal with them, as using an herbicide in a confined space isn't recommended.
Just make sure to pull the crown of the weed out, as leaving that will only let it grow back.
You can use coco mats, or container covers that are designed as weed barriers in container to prevent weeds from germinating, or you could mulch in a more conventional way.
Coco-coir mulch is one of my favorites. This article will help: https://www.gardeningknowhow.com/garden-how-to/mulch/using-coconut-coir-mulch.htm
I use an organic fertilizer for my tree. Last year I had a large number of buds, but in the end only 25 produced mature fruit. Where did I go wrong?
There are so many factors: how big is the barrel and the soil volume in relation to the tree size; how long has it been in the barrel since potted/re-potted and the soil re-charged? A tiny barrel and a big tree of course is inadequate. Container planting needs re-potting every two years or so. A wood barrel is preferable to plastic. Plastic can retain too much water.
What is your watering program? Too much or too little could be a major issue. For olives, it's better to water too little than too much.
Feed the olive tree with nitrogen rich compost, conventional fertilizer or concentrated organic.
Check the trees cultural needs against your care:
https://www.gardeningknowhow.com/edible/fruits/olive/growing-olive-trees-in-containers.htm
https://www.gardeningknowhow.com/edible/fruits/olive/olive-tree-care-information.htm
How do I process olives in order to eat them? We have 2 very productive Europa olive tress in our garden but have to waste all of the fruits because I do not know how to process them. Can you help?
Here is a good publication on the different methods of curing olives:
Like olives trees, and other small trees and vegetables
The list would be miles long!
Any vegetable can grow indoors, given the proper conditions.
First, it will be necessary to choose what you want to grow, then research each exact need from there. Then, it will be necessary to mimic those environmental needs as close as possible.
Here is an article that will help:
https://www.gardeningknowhow.com/special/organic/indoor-organic-gardening.htm
Moved olive tree cutting that we grow in plastic tub for five years. Recently moved from tub due to constant waterlogged, two weeks ago. April 2020. This week it turned its leaves brown and dropped a few. Welcome your feedback and advise. Thank you
Unfortunately, your photo did not come through. It does sound like the waterlogged soil has caught up with the plant, though.
The transplant is added stress, and may have been caught just a little too late. Infection has likely taken over, and the plant is also experiencing transplant shock.
I would make an attempt to treat with a fungicide or bactericide. These articles will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/special/organic/biofungicide-information.htm
https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
https://www.gardeningknowhow.com/garden-how-to/info/applying-bactericide-to-plants.htm
Make sure to allow the soil to dry out thoroughly between watering, and make sure there are drainage holes in container to allow all extra water to leave.
Here is an article that will help you to care for the tree:
https://www.gardeningknowhow.com/edible/fruits/olive/growing-olive-trees-in-containers.htm
a lot of my olive trees leaves have turned yellow, is there any advice as to why this is happening
Yellow leaves are usually indicative of under- or over-watering. A young tree needs lots of water at first. When established water deeply and less frequently. Good drainage is essential. Overwatering can cause root rot.
Has it been fertilized? Lack of nitrogen can cause yellow leaves. Also, some yellowing and leaf drop is normal.
Read the care tips below and see if they are being met:
https://www.gardeningknowhow.com/edible/fruits/olive/olive-tree-care-information.htm