I was given a trailing lantana in a pot about 4 days ago. It was doing well when I received it. It gets early morning sun, and I have kept it watered as I was told to do. It is on a porch where it gets filtered afternoon sun. Is there something I can do to revive it? It's a very large plant.
You did not mention any symptoms, other than to say it is dying. Are the leaves yellowing or brown? It is brittle or limp? Depending on the actual symptoms, it could be overwatered or have pests or disease. If you can give more detail, we can better assist you.
In the meantime, you may fine this article on its care helpful: https://www.gardeningknowhow.com/ornamental/flowers/lantana/lantana-plants.htm
The leaves on my trailing lantana are getting brittle and turning brown. How can I save this plant?
It sounds like a watering issue. I would check for root rot and make sure the plants are getting enough water. As a precaution, I would also treat for fungus with a fungicide.
When is the best time to do this? These plants are well established. The ground is sandy, and they seem to be doing well, but my mother cannot get out back to see them anymore.
Fall is probably the best time for moving these plants in your area.
Our lantanas have grey looking leaves and they are turning brown. What is causing this, and what can we do for it?
It is probably powdery mildew. You can treat it with either a chemical fungicide or neem oil. Both should be available at any store that sells gardening supplies. This article will help:
https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm
The leaves are graying on the edges.
Your plant may be affected by a fungus or spider mites. The stress from either will affect flowering. You can use neem oil to kill spider mites and relieve any fungal issues as well. Here is additional information that may be helpful: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
My Lantana plants are too big for the area where I planted them. How and when can I move them?
If the plants are too big, pruning may be in order. This article will help: https://www.gardeningknowhow.com/ornamental/flowers/lantana/lantana-pruning.htm
Spring planting and division is preferable.
Lantana bloomed beautifully all summer in a pot. I transplanted them to my beach front home in MD. The are planted in soil/sand mix and I've been watering them about every other day. They are brittle and some flowers are still on them as well as some berries. What should I do with them? Cut them back? Leave them alone? They've been transplanted about 3 weeks.
It could be suffering from 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