Herbaceous -: Bugle, Ladies Mantle, Bergenia, Lilly of the Valley, Lavender, Sage (Other Salvias) Erigerons, Fennel, Verbena, Scabious, Yellow Rattle (important plant in establishment of wildflower meadows once germinated it exudes chemicals from its roots that deter vigorous grasses), Ivy.
Biennials-: Foxgloves,Borage, Honesty (Lunaria annua), Hesperis matronalis,Teasals.
Annuals-: Phacelia tanacetifolia, corncockles, cornflowers, poppies, corn marigolds.
Shrubs good for pollinators-:Hebe, Honeysuckle, Elders, Privet (if allowed to flower),Californian Lillac (Ceanothus), Escallonia, Osmanthus x burkwoodii, roses like Rosa rugosa, David Austin English roses single flowered forms),Buddleias,Abelia grandiflora, Hawthorn.
Climbers-: Honeysuckle, Jasmine.
Bulbs good for pollinators-:Wood Anemone, Autumn Crocus, Native Bluebell (not spanish bluebell), single flowered Snowdrops, Lilliums, Grape hyacinth, chionodoxa.
Trees good for pollinators and small gardens-:Crab Apple, Judas Tree, Pussy Willow, Autumn flowering Cherry, Spring flowering Cherries (single flower forms), fruit trees (examples apples/pears,plums,greengages), Amelanchier lamarkii (snowy mespilus), Acacia dealbata, Albizia julibrissin (silk tree), Sorbus (mountain Ash).