I have an arrowhead that has new growth but some of the leaves are turning yellow.
This can happen for many reasons. Arrowhead ivy does have a tendency to have outer leaves die off some. If it is one or two, you don't need to worry much about it.
If it is more than a few leaves, I would look to how it is being watered. It should be watered when the soil is dry to the touch on top and it should have good drainage so that it is not sitting in water.
This article may also help:
I have an Arrowhead (syngonium) houseplant and it's going crazy, so I wanted to know if I could divide it into two plants.
You can. Here is more information on the plant: https://www.gardeningknowhow.com/houseplants/arrowhead-plant/arrowhead-plant-care-arrowhead-plant-or-syngonium-podophyllum.htm
I am trying to find out if this plant is toxic to animals, particularly turtles. I have a member of my group that is feeding this to her red-eared slider and a box turtle. I want to make sure it cannot harm either animal. It is not on my lists of toxic plants.
While Syngonium podophyllum is listed as toxic to humans, that doesn't mean it is toxic to turtles. You would have to ask a turtle expert to find out for sure.
A friend of mine cannot keep a syngonium plant indoors becasue her cat eats it. No harm to the cat. I have two syngonium plants, both go outdoors in summer. A deer came into the yard, ate all the leaves off of both plants (and ate the sedum too!). The deer is fine, as far as I know. I doubt syngonium will harm a turtle.
I had taken some clippings from an arrowhead plant. It did wonderful for about 2 1/2 months in water. I planted it last Monday, and now the leaves look limp as if they are dying. I also moved its location. While rooting it, I had it in my office. I brought it to my home to plant it. Is it too late, or what can I do to save it?
Sometimes if cuttings are left too long in water, they grow use to growing in that much water and when moved to soil, they can't survive. You can try overwatering the soil or moving them back to water permanently.
The plant is more like a vine, but am wondering what would happen if the plant is draped across the top of a few file cabinets and not allowed hang over the edge.
The vine like behavior is an indicator that the plant may not be getting quite enough light. Placing it on top of the file cabinets may help to get it more light and help it start to grow more upright. You may also want to give it a little trim to help encourage branching.
I have a 6 month old kitten, and when I brought my plants in for the winter, she has been trying to eat my arrowhead plant. Is it poisonous for her?
It probably won't kill her but may cause some pretty serious side effects (like difficulty breathing) so we would recommend that you keep her away from it.
How much soil is required for potted arrrowhead plant?
Fill pots about 2/3 full, add the plant and fill in around it leaving about an inch space at the rim. This article should also help: https://www.gardeningknowhow.com/houseplants/arrowhead-plant/arrowhead-plant-care-arrowhead-plant-or-syngonium-podophyllum.htm