Ask a Question forum: yellow daisy tree

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Sep 2, 2016 2:42 AM CST
I have one of these in a pot on a terrace. It WAS underplanted with wild primroses & celandines, but these have all died off, & unlike every other pot on the terrace, NOTHING has seeded itself in the pot. Is there something about this plant that stops underplanting from flourishing?
Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Sep 2, 2016 5:51 AM CST
Welcome! Fred. Different plants can be called daisy tree, do you know which yours is, for example is it Argyranthemum? If you're not sure, could you post a picture? I did a quick Google search for Argyranthemum and allelopathy (the term for when a plant affects the growth of another plant) and didn't find anything. I've grown Argyranthemum and I don't recall its having that effect. Could it be that the environmental conditions didn't suit the primrose and celandine (different plants can be called celandine too, just to compicate things)? Is it too hot and dry where they are located? I'm guessing you are in the UK?

Does the yellow daisy tree look like this?

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