The Flowers That Bloom In the Spring (Tra-la)

Mum's garden is looking very colourful at the moment, with everything coming into bloom. This display in the front garden caught my eye this morning - but sadly none of her gardening knowledge has come down to me, so I don't know their proper name. And because her eyesight is now very poor, she finds it hard to see and identify things. So if anyone happens to spot this and knows what these flowers are, I'd be very grateful if they could add a comment to let me know!