Weed killer to get rid of agapanthus
I would not recommend applying anything for this case. Killing this plant will require killing other plants in the area as well. If you do decide to use this, then you will want to give the area several months before you plant anything, so the poison has time to get out of the soil.
Unfortunately, the best way to control is to pull them up manually.
Here is a link to more information: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/how-long-does-weed-killer-last-in-the-soil.htm
I lifted my evergreen agapanthus last week to split it as it is too big for the space,we didnt have the spade to cut through it so my friend said it would be fine just sitting on the soil in a crater with some roots uncovered. Is this ok or should I bury or cover the roots? we won't be able to split it till the w'end? Would you be able to advise me Thank You Joan Fegley
It is best to keep the roots covered with some damp newspaper or towels until planting. Also, keep the plants in the shade while they're out of the ground.
Bought a Agapanthus late October, it's roots were tightly wrapped around itself that pot had to be cut. I could not separate the roots to help them spread out. It's repotted in a bigger container with potting soil, with a west facing window nearby. The leaves are yellowing, it is watered about once a week. What can I do to stop the yellowing of leaves? Is it going through a dormant phase? Any information you can provide will be greatly appreciated. Thank you.
Yellowing leaves are often caused by overwatering in container plants. Larger pots hold onto more water than smaller pots, so your plant will probably need to be watered less frequently than when it was in its smaller pot. Push your finger into the soil each time before you water to make sure the soil isn't staying too damp.
Higher light levels could also help your plant green up. A disease is unlikely, but check this article just in case:
https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/diseases-agapanthus-plants.htm
How long can they stay out of the ground before you replant?
With proper storage they can stay out of the ground for a few months. This article will go over this in more detail: https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/agapanthus-plants-in-winter.htm
For the first time I can remember my white agapanthus is in flower again after producing lovely flowers all summer. Can this be a normal occurrence? It is kept on my patio in a pot but quite sheltered.
Sometimes, unseasonable weather will cause plants to bloom at the wrong time of year. Agapanthus can also bloom for a long period of time including into the fall if the conditiions are right. The plant should be fine though, so just enjoy the flowers!
This is my first attempt to separate a large, mature plant which wintered well since 2015 in our Carolina Room. After reading your directions, I pulled the plant from the pot to find roots every where. I have never seen so many roots in my life in 50,000 different directions. I separated the original plant into at least four divisions and plan to transplant them into my garden for this spring. Thank you for your directions. Any thoughts for Zone 8? Janice
It can be quite a task dividing Agapanthus and I'm glad you were able to divide the plant.
You should be good to plant out by the end of April seeing the last frost.
https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/dividing-agapanthus-plants.htm
https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/agapanthus-plant-care.htm
I have a very large agapanthus in a container (unable to move) I am concerned that although I have covered the large leaves the temperature at the moment is -6 and it looks as if it is being damaged Have you any information or advice as to what is the best thing I can do so I don’t loose it Thank you in anticipation Linda
I will have to assume that this is in Celcius. These temperatures in Fahrenheit (what we measure temperature in) would completely kill these! At -6C they will be right above their tolerance. They will likely survive this, but covering them will give them a headstart when the warm weather returns.
Here is an article for more information on these: https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/agapanthus-plant-care.htm