 | Buddleja alternifolia
Argentea
buddleja |
| Shrub, Rounded - Tree | Dark blue flowers (Summer early, scented), Medium Green foliage |
 | Hydrangea serrata
'Tiara' |
| Shrub, Rounded - Bush | Dark blue flowers (Summer), Medium Green foliage |
 | Hydrangea macrophylla
'Heinrish Seidel' |
| Shrub, Container-friendly, Rounded - Bush | Dark blue flowers (Summer), Medium Green foliage |
 | Hydrangea macrophylla
'Veitchii' |
| Shrub, Container-friendly, Rounded - Bush | Dark blue flowers (Summer), Medium Green foliage |
 | Hydrangea macrophylla
'Bouquet Rose' |
| Shrub, Container-friendly, Rounded - Bush | Dark blue flowers (Summer), Medium Green foliage |
 | Hydrangea macrophylla
'Blue Bird' |
| Shrub, Container-friendly, Rounded - Bush | Dark blue flowers (Summer), Medium Green foliage |
 | Lavandula intermedia
'Grosso'
Lavender |
| Shrub, Herbs, Hedging & Screening, Culinary, Container-friendly, Spikey | Dark blue flowers (Summer, scented), Medium Green foliage |
 | Lavandula angustifolia
'Imperial Gem'
Lavender |
| Shrub, Herbs, Ground cover, Hedging & Screening, Culinary, Container-friendly, Rounded - Clump | Dark blue flowers (Summer, scented), Medium Green foliage |
 | Caryopteris incana |
| Shrub, Ground cover, | Dark blue flowers (Summer) |
 | Plumbago auriculata |
| Shrub, Climber, | Dark blue flowers (Summer late) |