The most likely candidate at this time of year is bluebell, probably the Spanish kind, but you also have a geum, which could be either wild or garden version and some potentilla seedlings, though these are more likely to be the wild ones I think. The one in the middle is the little Euphorbia peplus. Take care ot to get the sap on you with this one, though it has some interesting medicinal uses.
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Looks like you also have Japanese Anemones in the same spot too
Billericay - Essex
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