Posted: 31/05/2013 at 12:02
1st shrub - could it be Chaenomeles(japanese quince) - if so, buds will have opened to bright red flowers. Or could be escallonia, as figrat says. Both worth keeping, trim back and remove dead wood.
Little mauve flowers - there was a large clump on a wall in my house when we moved in over 20 years ago and it's still there. I've always called it phlox, but I'm not sure that's the correct name
Mauve globes - "drumstick" primula
Fiery red flower - looks like a good colour mimulus, mine are all yellow and spread like mad, but very pretty flowers
Green plant which "looks like a weed" - definitely a buddleia, the butterfly bush, with most commonly long spikes of flowers, mostly purple but lots of other colours and sometimes globe-shaped. The purple long flowered sort self-seed prolifically round the garden, but are well worth having to attract butterflies and bees, and are easy to grow. can get quite big and woody - I wouldn't leave it in a gap in the paving.