| Hydrangea macrophylla 6 |
Corylopsis (Winter Hazel) 6 |
| Spiraea 7 |
Viburnum dentatum 6 |
| Kerria japonica 7 |
Hamamelis (Witch Hazel) 6 |
| Philadelphus (Mock Orange) 7 |
Viburnum plicatum 7 |
| Deutzia 7 |
Sambucus (Elderberry) 8 |
| Fothergilla 6 |
Callicarpa (Beautyberry) 6 |
| Weigela 7 |
Deciduous Azalea 6 |
| Mahonia aquifolium (if pruned back) 6 |
Clethra alnifolia (Summersweet) 6 |
| Physocarpus (Ninebark) 6 |
Ribes sanguineum (Flowering Currant) 7 |
| Chaenomeles (Flowering Quince) 7 |
Ceanothus (Deciduous types) 8 |
| Diervilla (Bush Honeysuckle) 6 |
Exochorda (Pearlbush) 8 |