HELP!! My citrus tree leaves are turning yellow! What can I do to correct this problem?
It is most likely not taking iron up properly. This article will help:
https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
This article has some other suggestions:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
I would like to expand a greenhouse to include citrus. Greenhouse will be enclosed in winter and partially open other seasons.
I live in the Palm Springs, CA. Figuring out the right amount of water for my citrus trees is driving me nuts. I tried a cheap moisture tester, but that didn't help. I can't tell if I'm drying them out or over-watering. As you said I could be losing leaves from over watering or drying them out, I just don't know. Aside from that I notice stunted growth in my healthy trees. Sometimes I think when I am getting it right I will see a little growth, like some new leaves came in on a new tree I tried to rescue from a friend. But then everything stops growing for weeks. I noticed this on all three of my good trees. Is there anything else I can do to try and understand how much to water? Mind you we're at 108 degrees today. And because I'm planting in sand, I think there is no drainage.
These trees are naturally adaptive to your climate and are probably served best by a deep watering once a week. Stop worrying and let nature take its course!
Citrus trees in your area will bear all year, but there are periods of dormancy in between when leaf loss is natural. I'd check with a local nursery to see if they can offer any suggestions.
What is the best product to treat greasy spots on my citrus tree? I've been using salt and water and wiping the leaves with it, but it is not working.
First of all, I would not use salt on the plants as this could be potentially harmful. That being said, this article should help with your problem: https://www.gardeningknowhow.com/edible/fruits/citrus/greasy-spot-fungus.htm
Is it safe (or recommended) to water citrus leaves with a sprinkler in the direct sunlight? I have been told by some old gardeners that it is not good for the tree to water the leaves. . . period. . . and it can kill the tree if done in sun.
The following articles should be of some help to you: https://www.gardeningknowhow.com/edible/fruits/citrus/tip-on-water-requirements-for-citrus-trees.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/water-plants-vegetable-garden.htm
While it will not kill the tree, the water spots left on the foliage can act as a magnifying glass in the sun and cause burning or scorching of the foliage. It is generally better to water before the sun rises or after the sun has set.
All accounts say you need to have good drainage lines around base. How can you develop that and know it is working?
this will help with your question:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/what-is-soil-made-of-creating-a-good-garden-planting-soil-type.htm
Would it hurt to replant young citrus, and if so, should it be in better soil - what kind? I live in extremely hot Houston, Tx. clay.
You can replant it, just watch for transplant shock. This article will help with that:
https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm
They like soil that is high in organic material.