My camellia is ten yrs. old and has never bloomed. Now it is covered in black mold. Today I washed it with dish soap and water, then sprayed it with a lime sulphur spray. Is this ok or is the lime not good for it?
The lime is probably not too good for the plant, but I can say that your camellia sounds like it's suffering from sooty mold, which more often than not is brought about by some type of pest, like aphid or mealy bug. I would recommend washing the plant down with water to remove any excess lime or soap from the plant and then treat it with neem oil. We have found it to be very effective against these kinds of pests and it will also help treat the sooty mold fungus. These articles will explain more:
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/ornamental/flowers/camellia/sooty-mold-on-camellia.htm
Once the plant has returned to health, adding some phosphorus-rich fertilizer or bone meal to the soil should help encourage the blooms.
Why are some of the new growth leaves on my otherwise healthy camellia limp and soft to the touch?
This is normally caused by underwatering. New growth is more susceptible to a lack of water and will droop long before the rest of the plant does. Make sure the plant is getting enough water and check the roots for damage to make sure that they can take up the water.
Why do my Camellia white blooms go brown the day after they open?
There are several reasons this could be happening. The plant may not be getting enough humidity, there may be thrips on the plant or it may be a fungus. Treat the plant with a pesticide and a fungicide to take care of any pest or fungus issues. Also make sure that the plant is getting enough water.
What causes the holes in the ground under the plant?
It is a rodent of some kind. Depending on the size, some possibilities could be moles, voles or groundhogs.
The five camellias in my small garden had 5 flowers in total this year.
Not many buds and the buds that appeared just shrivelled and dropped. Dynamic lifter was applied about 6 months ago. Water is always applied on regular basis. What would be the cause? Some bushes have leaves with rust colour down centre.
It sounds like they may have a rust fungus. Treat the plant with a fungicide. This article may also help:
https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm
I've got one plant that's all white. What must I do for it? I live in San Jacinto, Cal. This year it's been very hot, with a limited amount of water. Help.
This article will help: https://www.gardeningknowhow.com/plant-problems/environmental/dealing-with-heat-stress.htm
You will need to keep the plant watered as much as possible, at least once daily if planted in ground or twice for container grown plants, whenever the temps reach 85 degress F. or more.
My camellia has developed dark round brown spots on the leaves. The spots are visible on the top of the leaf mostly with only one spot on back side of the leaf. What is it? How can I correct the problem?
It is likely a fungus, so you can go ahead and treat the plant with a fungicide to try to get rid of the disease before it gets a good grip on your plant.