Have hundreds of African daisies. All partly flowering, but about 3 ft high and all dead underneath. Look untidy. Do I cut them back hard now? How low do you cut them? Will look very bare, but should come back again, right? Never sure what to do with them. They have overtaken my very large hillside garden.
Bit of a problem here. There are several plants with the common name of African daisies. But since what you are describing in a perennial plant, and 3' tall, I'm going to guess the "bush daisy" https://www.gardeningknowhow.com/ornamental/shrubs/african-bush-daisy/growing-bush-daisies.htm
Even if you have gazanias -- https://www.gardeningknowhow.com/ornamental/flowers/gazania/gazania-treasure-flowers.htm
the trimming is the same. Go ahead and cut them back hard, they should grow back bigger and better than ever.
My African daisies were all blooming beautifully and all of a sudden they started wilting and their heads started pointing downwards and I have no idea why. Is it because the weather changed from very warm to cooler at night? Or is it something else? Also, I have them planted in the garden and they have started opening up, so there is a big hole in the middle. How do I prune this?
These plants do not like cold conditions, so it is highly possible that they are stressed due to the sudden temperature change. In fact, they are considered annuals in areas with cooler weather. By opening up, do you mean the stems with the heads of the flowers having fallen out to the sides so that there is a large bare circular area in the center? This normally happens because the plant does not get quite enough sunlight and has weak stems. If you can get them more light, that would be helpful. Additionally, you may have an animal bedding down in the flowers at night, which will create a circular pattern of flattened plants and kill the plants in the center.
I live in the Ottawa, Ontario, Canada area. I bought my mother Red African daisies for Easter and my question is, can it be transplanted on outside soil or is it best to keep it inside? Thank you for your response.
Yes, they can be transplanted outdoors. This article should help you with their care: https://www.gardeningknowhow.com/ornamental/flowers/african-daisy/african-daisies-osteospermum.htm
I have one potted African Daisy in an average pot. I would like to keep it until fall. Do I keep it in a pot or plant it in the ground? Very nice purple flowers.
At this point, I would keep it in the pot, rather than trying to plant it in the ground, but honestly, you could do that too. This article has information you might find useful: https://www.gardeningknowhow.com/ornamental/flowers/african-daisy/african-daisies-osteospermum.htm
Will Osteospermum jacundum survive outside in our winter, or are they annuals? I feel sure I had some in a previous garden and they did. Thank you.
It is an annual and will not survive winter outdoors. Here is more information: https://www.gardeningknowhow.com/ornamental/flowers/african-daisy/african-daisies-osteospermum.htm
I'm new to gardening and I've been a fan of the African daisy since I first saw it. I managed to finally find a pot of these beautiful flowers last week from my local florist, but I'm not sure if I'm doing something wrong. My flowers seem to be dying and wilting. I'm hoping that deadheading the plant will help and that this is part of the blooms just dying off. I've left the plant by the window, in the spot which gets the most sunlight. I live in a condo unit, so there is no balcony to leave the pot outside. How long do the blooms normally last before I need to deadhead them? Thanks, Alison
If you purchased these from a local florist, there's a chance that the plant may have been "forced" to bloom, and now it's trying to go dormant. They don't normally bloom till mid-summer.
These articles may help you:
I agree with you that the African Daisy plant and flowers are lovely.
The fading of your flowers may be due to natural aging of the flowers, but most likely due to the lack of sunlight.
African Daisy are annuals that are generally grown outdoors.
Your indoor setting is not likely providing the appropriate growing conditions needed.
You could add some artificial light by using a grow light.
Here is an article to refresh you on the care requirements.
Should I deadhead this plant? If so, do you cut the old stems off or just take the head off?
Yes, you can remove the entire stem from the spent flower.
Here is a great article with more information.