Just at a quick glance...the top bright green plant is a spurge aka milkweed (Euphorbia sp). Called milkweed as it produces copious quantities of white sap which can be irritating on the skin. Usually grown for their brightly coloured foliage, the flowers are usually insignificant., The smaller plants surrounding it look like various 'chickweeds' and should be pulled or hoed up, or they'll seed everywhere and you'll have even more next year.
No. 2 The blue flowers are cranesbill geraniums...the red ones might be as well, but I can't see the leaves properly. If not cranesbill, they may be Potentilla.
No. 3 is Zantedeschia aka Calla Lily.
No.4 Is a Potentilla (I think) aka Cinquefoil.
No. 5 The red flowers on the dark foliage are Dahlias and the fluffy pink spikes are Astilbe aka False Goat's beard.
No. 6 Is also a Dahlia.