Just commented on your other question!! What about some nice alpine and rockery plants that spread out like carpets with lots of little flowers (most are evergreen too) like sedums, saxirage.. That kind of thing ? Most of my plants are like that so that there's colour when the acers lose their leaves for winter :)

Bedding plants that do well in shade - fuchsia, busy lizzie, lobelia (trailing and upright), begonia semperflorens (bedding begonia) and the larger Begonias.

Ground cover in sun - Campula muralis, Iberis sempervirens, Helianthemum, Arabis varieties, Aubretia, Saponaria ocymoides, Cerastium tomentosum (if you've got a largeish area, it spreads though can be kept in check with a strong haircut after flowering).

Just had a look at both you suggest. Sound perfect for the rockery and also the shades border. Did a bit of a read up and apparently dwarlf alliums are a perfect accompanient which are a face plant of mine. I've got possibly a few more weeks getting it all how I would like and will update with pictures. Thankyou again for your comment.

Thsnkyou bamboo. Campanula muralis is still an all time favourite of mine since you suggested it after I very first joined some years ago. I will have a look at the others you have suggested. Thankyou for your comment and insight.

For shade, Vinca (major and minor) aka Periwinkle; Pulmonaria; Epimedium - mainly grown for its foliage which is often bronze; perennial Geraniums.

Ground cover, sweet woodruff; Ajuga.