Rhododendron fastigiatum 'Blue Steel' (Dwarf rhododendron 'Impeditum Blue Steel' )
Other names: Rhododendron 'Impeditum Blue Steel'
'Impeditum Blue Steel' is a compact, dwarf, evergreen shrub with matt, oblong to lance-shaped, blue-grey leaves and funnel-shaped, lavender-blue flowers in spring.
Read more...
![]() |
0.3m max. spread |
![]() |
0.3m max. height |
![]() |
10-20 years to maturity |
Aconitum hemsleyanum (Climbing monk's hood)
Other names: Climbing monkshood, Aconitum volubile
A. hemsleyanum is a twining, perennial climber with ovate, deeply-lobed, grey-green leaves and racemes of hooded, deep violet flowers from midsummer into autumn.
Read more...
![]() |
1m max. spread |
![]() |
3m max. height |
![]() |
2-5 years to maturity |
Aconitum napellus subsp. napellus Anglicum Group (English monk's hood)
Other names: Monk's hood Anglicum Group, Aconitum anglicum, English monkshood
Anglicum Group are upright, clump-forming, tuberous perennials with rounded, deeply-lobed, mid-green leaves and, from late spring to midsummer, dense racemes of hooded, purple-blue flowers.
Read more...
![]() |
0.5m max. spread |
![]() |
0.7m max. height |
![]() |
2-5 years to maturity |
Hydrangea macrophylla 'Black Steel Zaza' (Black Steel Series) (Hydrangea 'Zaza')
Other names: Mophead hydrangea 'Zaza', Hortensia hydrangea 'Zaza', Hydrangea macrophylla 'Black Steel Zsasa'
'Zaza' is a compact, upright, rounded, deciduous shrub with dark stems bearing broadly ovate, toothed, veined, dark green leaves and, in summer, large, rounded clusters of light green flowers, maturing to purple-blue or pink depending upon soil ph.
Read more...
![]() |
1m max. spread |
![]() |
1m max. height |
![]() |
5-10 years to maturity |
To add ? to your lists,
login to your account or subscribe.
Find out more about plant lists here
or Login