My camellias are approximately a foot tall. Of the three, one is producing a lot more flowers than the others, but they all seem to be dropping off. They drop after blooming and I don't see any chew marks, so I don't think it's critters. I now just have pretty open flowers as a mulch - any ideas?
It could be petal blight, which can be caused from too much moisture. This article should help: https://www.gardeningknowhow.com/ornamental/flowers/camellia/identifying-and-fixing-problems-with-camellias.htm
My four or five-year-old camellia's leaves are curling in and the blossoms are not opening. Can you please help?
The following article should be of some helpto you: https://www.gardeningknowhow.com/ornamental/flowers/camellia/identifying-and-fixing-problems-with-camellias.htm
My Camellias are trees. They've no real shape. They've stopped blooming now, and they really need pruning. How much should I cut them back?
I would only prune it back by 1/3. You can follow up next year with a pruning of 1/3 again. Any more than 1/3 and most plants start to have problems.
The leaves on all my camellia bushes are turning yellowish. Is this from too much water? Do they need food?
Here is an article that you also may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/camellia/identifying-and-fixing-problems-with-camellias.htm
I am using Ferti-Lome Gardener's Special 11-15-11 and it is getting much better. I was also told to pull off the yellow leaves.
Is it okay if my camellia bush is in full sunlight?
If it is already growing in full sun and doing ok, then it is fine. But, if it is in full sun and not performing well, you should look into moving it somewhere with filtered or partial sun.
This camellia tree has been healthy and bright till this spring. Now 1/2 of the tree is yellowing on the leaves and flowers, and the underside of the leaves have a few clear mite-like creatures crawling around. What do we do? How to identify the criters?
It sounds like you have aphids. I would treat the plant with neem oil. It is safe for people, pets and beneficial insects but very effective on aphids and similar small pests that suck on the leaves of plants.
These articles will help:
https://www.gardeningknowhow.com/plant-problems/pests/homemade-aphid-control-a-natural-way-to-kill-aphids.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
I have a Camellia 'Jurys Yellow' and it is displaying a beautiful show of flowers. However, I am concerned that leaves from one branch are turning brown before falling. The 'browning' appears to begin in the leaf stalk first. There is no bud drop. I would be grateful if you could tell me what the problem may be, and the subsequent treatment.
Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/camellia/identifying-and-fixing-problems-with-camellias.htm