The flower looks like evening primrose to me, Oenothera biennis, but the leaves don't look quite right. The flower also looks a bit like Californian poppy, but again, leaves not quite right...
I wondered if it could be a yellow horned poppy not totally sure regarding the leaves. Also wondered about Oenothera but there are so many I am unable to help.
I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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Trying to figure this plant type
The flower also looks a bit like Californian poppy, but again, leaves not quite right...
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.