1 Pulmonaria ‘Diana Clare’
Long, silvered leaves with an apple-green cast flatter deep violet flowers, making this pulmonaria perhaps the best of all. Part shade (30cm/2ft).
2 Epimedium x versicolor ‘Sulphureum’
Graceful wiry stems with two-tone yellow flowers above heart-shaped, shiny green leaves. A toughie. Part shade (30cm/2ft).
3 Erysimum ‘Bowles’ Mauve’
In flower from spring until late autumn, this bushy wallflower produces sprays of purple flowers above grey-green foliage. Sun and good drainage (75cm/2.5ft).
4 Dryopteris wallichiana
Black bristly hairs contrast against bright green fronds when this handsome upright fern unfurls its croziers in late April. Good soil, shade (1.2 m/4ft).
5 Scilla siberica ‘Spring Beauty’
Easy, deep blue, diminutive bulb to drift through paler spring bulbs, whether miniature narcissi or erythroniums. Semi-shade (15cm/6in).
6 Cyclamen coum
Jaunty swept-back flower with a magenta nose. Grow in full sun or under trees and allow to self-seed. Good drainage (10cm/4in).
7 Clematis macropetala
Let it scramble over a wall and, given time, it produces ragged, soft-petalled flowers with cool green middles. Good drainage (3m/10ft).
8 Viburnum x burkwoodii ‘Park Farm Hybrid’
Early spicy, sweet fragrance as deep pink buds open to apple-white flowers that show up well against the shiny green leaves. Easy (3m/10ft).
9 Crocus chrysanthus ‘Blue Pearl’
For early spring sparkle, this delicate silver-blue crocus shimmers in spring sunshine and complements yellows, oranges and purples. Full sun (7cm/3in).
10 Narcissus ‘Jetfire’
This vivid yellow-petalled cyclamineus hybrid develops a bright orange trumpet, so it makes a great impact. Easy anywhere (24cm/9in).
For the other 90 go to the Telegraph.