I have an umbrella tree that the leaves continue to fall off. The leaves get thin and you can see through them. Please help.
It sounds like the work of a pest. I would treat the plant with neem oil. It will take care of any pest issues and is a fungicide as well.
This sounds kind of mysterious. Do you have access to any university botanical departments, or state extension services? You could take in some leaf samples and see what they say. Schefflera are generally tough customers;one thing is to make sure the soil is not too wet, because if the plant is strong and healthy it can fight off most invaders. The soil should be almost dry all the way to the bottom of the pot before you water again. Use a moisture meter, or a wooden skewer that you can push down into the soil - the meter should read almost dry, the skewer should feel dry and have no soil sticking to it.
Umbrella tree is overgrown and neglected.
Assuming you are referencing the schefflera umbrella plant, pruning a is simple. Just cut off what you feel is overgrown or leggy back to a size or shape you like. Schefflera houseplants rebound quickly from pruning and will look even fuller and more lush shortly after pruning.
I believe that I have finally correctly identified my houseplant as a Schefflera. One stem has died. The other is green and healthy from the top portion but the bottom of the stem, close to the dirt, is turning grayish brown. Underneath if I scrape it, it is still healthy green. Is this normal or is this scale? I don't see any bugs. It's an indoor plant.
As "Scheff's" age, their green stems become woody with bark. This is normal.
I've had an umbrella tree for over 25 yrs. The conditions seem fine but the plants leaves are dropping off, still green and healthy. Watering is fine and lights ok too. It's like the plant is dying as quick as it grows. Also, no pests. Any idea what could be causing this? Someone suggested root rot. Is there anything I can do to save this tree?
I am leaning towards it being a fungus of some kind. There are several that could cause this. If it were root rot, you would see yellowing of the leaves before they fell. Treat the plant with a fungicide and, if possible, improve the air flow around the plant to help discourage fungus growth.
I have an umbrella tree that I got from a local garden center. The thing is that it has so many stalks in the one pot (approx. 35-40) and it is so bushy that I don't think it's getting to its full potential. I would like it to grow taller but in the year in a half I have had it, not much has happened. I tried taking off a bunch of leaves and some new ones grew back. Wondering if I should completely cut out some of the stalks and, if I do, can I root them. Any suggestions on how to prune so it can grow taller would be greatly appreciated.
The best way to get it to grow taller is to leave it be and give it time. Pruning of any kind will encourage shorter, bushier growth, rather than taller growth.
When should I repot my Heptapleurum umbrella plant?
You want to wait until they become just a little root bound. How long that will take varies on the plant and its growing conditions. This article will help you with figuring out if it is root bound or not: https://www.gardeningknowhow.com/plant-problems/environmental/root-bound-symptoms.htm
I have an umbrella plant in my garden that I just planted. Just wondering how to plant these. Can I take a piece of it and plant it? Thank you.
There are 2 different common plants that go by the name of umbrella plant. (A good reason to ask the botanical name of any plant when you get it, and get used to using that name.) The first one (more common) is one of several varieties of Schefflera: https://www.gardeningknowhow.com/houseplants/schefflera/schefflera-plant-care.htm
The second is a water plant, cyperus: https://www.gardeningknowhow.com/houseplants/cyperus/cyperus-umbrella-plant.htm
The cyperus article discusses propagation, and this article tells you about propagation of the schefflera: https://www.gardeningknowhow.com/houseplants/schefflera/schefflera-plant-cuttings.htm