I have a 3 cluster foxtail palms about 5 years old. The smallest one died and the other 2 are doing great. Can I cut the small one off at the bottom or do I leave it alone?
If it is dead, then it will be completely fine to remove it. If it is still living, I would wait until all growth from the shoot is dead to remove it.
This article will offer more information on their general care: https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
the palm is approx. 18 months old and is very slow growing About 2 months ago the fronds will shoot looking healthy but in a few days they'll turn brown and eventually die '
Unfortunately, you photo did not come through, so I will not be able to see the damage.
This sounds like a fungal/bacterial infection. Most often this is caused by too much water, or soil that just doesn't have enough time to dry out between getting some water.
You can attempt to correct with a fungicide, but if the environment doesn't cooperate, then you may lose the tree.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/plant-problems/disease/using-lime-sulfur-in-gardens.htm
Here is an article that will help you to find the closest extension service to you, where they can help further: https://www.gardeningknowhow.com/extension-search
This article will guide you on the care of these trees: https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
s yellowing and leaning. Help. Miami, Fl Here are some pix
If the fronds still look huricane damaged, go ahead and prune them off. It may be suffering from root rot, having been inundated with water during the hurricane. Be frugal with watering for awhile and see if that helps. I would consult your local extension office for more help as they are likely used to hurricane consequences.
https://www.gardeningknowhow.com/plant-problems/environmental/hurricane-damaged-plants.htm
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-diseases.htm
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
You are in zone 9a of USDA hardiness zones, so you are right on the border of its hardiness zone 9b and warmer. Do your winters stay above 30 degrees F? If so, you should be able to grow it, according to this Florida extension publication:
https://edis.ifas.ufl.edu/fr304
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
One week ago I planted a 6ft Foxtail. I just purchased (not yet planted) an 8ft foxtail. Can I plant them about 1ft apart and at a slight angle to achieve a curved trunk look safely ? I'm in So.Calif. zone 9
Yes, but the best way to do this will be using wire, as you would a bonsai, to keep the bend in place until it holds on its own.
Here is an article that will help you with the care of these trees:
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
The palm is in a 10 inch pot and the the the paper says it will grow 4 to 6 ft tall.
In your area, yes! It will survive happily, outdoors.
Here is an article for tips on their care:
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm
I suppose I would have a professional landscaper do this for me if you think it is a solution.
It is best to have a professional do this, but you can take this task on, yourself, if you keep sterile. The problem comes when infection is introduced from improper pruning.
This article will offer more information on the palm's general care:
https://www.gardeningknowhow.com/ornamental/trees/foxtail-palm/foxtail-palm-tree.htm