I have bulbine plants around my landscaping, but the roots are getting brown and seem to be dying off. How do I help the roots from dying off? The stalks seem to be very green and healthy.
It sounds like it is developing a root rot. Typically, root rots are brought on by overwatering. This plant enjoys dry conditions and will be more susceptible to root rot if placed in a place with wetter condition. If the location they are at does not dry out well, you may want to consider moving them.
Root rot can also be caused by a fungus. If you feel the location is dry enough for these plants and that they have not been overwatered, you can try treating the soil with a fungicide. Fungal root rot is difficult to control sometimes, so there is no guarantee that the fungicide will work, but there is not much else you can do for them at that point in time.
I have a huge bulbine plant that has sprouted 4 others. I would like to take the side ones off to transplant them but don't know how to go about it without damaging any of the plants. Will they grow with no roots? Many thanks Jill
Propagation is easy with Bulbines as you can easily divide the plants when they are large enough.
Dig out the part of the plant you are wanting to separate by lifting the rhizomes. You can do this after the plant is done blooming.
Bulbines also will reseed quite easily.
https://www.gardeningknowhow.com/ornamental/bulbs/bulbine/caring-for-bulbines.htm
They bloom profusely during the rest of the year, but have stopped this summer.
If these are not fertilized properly, or often, then I would recommend doing so to restore blooming. These benefit from routine feeding.
Here is an article that will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/bulbs/bulbine/caring-for-bulbines.htm