…smaller growing, more dwarf, and have larger flowers. Buddleia ‘Black Knight’ and ‘Empire Blue’ have been superseded by ‘Buzz Indigo’ / ‘African Queen’ as good purples and by ‘Blue Horizon’…

…‘Okavango’ – big flower and quite unusual. Crocosmia ‘Okavango’ Crocosmia ‘Okavango’ Geranium ‘Eureka Blue’ – another nice blue but the name might sell it. Geranium ‘Eureka Blue’ Geranium ‘Eureka Blue’…

…– medium-tall growing. Agapanthus ‘Sandringham’ Agapanthus ‘Sandringham’ Agapanthus ‘Bressingham Blue’ – taller growing and very floriferous. Not quite as dark as Agapanthus ‘Navy Blue’? Agapanthus ‘Bressingham Blue’ Agapanthus ‘Bressingham Blue’…

…always grown superb blue hydrangeas and must be highly acidic. Interestingly the 2013 planting of the red Hydrangea ‘Heinrich Siedel’ have died. Hydrangea ‘Fireworks’ blue Hydrangea ‘Fireworks’ blue Proved indeed…

…Road. Perhaps Narcissus x intermedius? narcissus Ceanothus ‘Trewithen Blue’ and Magnolia ‘Yellow Lantern’ – blue and yellow work well together here. Ceanothus ‘Trewithen Blue’ Ceanothus ‘Trewithen Blue’ and Metasequoia glyptostroboides…

…a brilliant blue lacecap set against its black stems. Hydrangea ‘Zorro’ Hydrangea ‘Zorro’ Hydrangea ‘Hobella’ Hydrangea ‘Hobella’ Hydrangea ‘Hobella’ Hydrangea ‘Fireworks Blue’ Hydrangea ‘Fireworks Blue’ Hydrangea ‘Fireworks Blue’ The Harrow…

…Blue’ is an evergreen sub-shrub unlike the other herbaceous penstemons. Penstemon heterophyllus ‘Heavenly Blue’ Geranium pratense ‘Delft Blue’ Geranium pratense ‘Delft Blue’ Salvia ‘Purple Rain’ was spectacular. Salvia ‘Purple Rain’…

…‘Blue Dune’ – incredibly blue foliage in full sun Elymus arenarius ‘Blue Dune’ Elymus arenarius ‘Blue Dune’ Geranium pratense ‘Algera Double’ Geranium pratense ‘Algera Double’ Geranium pratense ‘Algera Double’ Digitalis…

…elongatus ‘Blue Chip’ Podocarpus elongatus ‘Blue Chip’ Magnolia x brooklynensis ‘Hattie Carthan’ is just coming out. Magnolia x brooklynensis ‘Hattie Carthan’ Magnolia x brooklynensis ‘Hattie Carthan’ Our old favourite Rhododendron…

…– easily the best blue lacecap HYDRANGEA ‘Taube’ HYDRANGEA ‘Taube’ Hydrangea ‘Fireworks blue’ – very floriferous and vigorous grower Hydrangea ‘Fireworks blue’ Hydrangea ‘Fireworks blue’ Hydrangea ‘Fireworks pink’ Hydrangea ‘Fireworks…