Plant Search » Primary Bloomcolor
Panicum virgatum 'Heavy Metal' is a dramatic switch grass forming vertical pillars of metallic blue.
Passiflora 'Alba' is a pure white form of the hardy blue passion flower.
Passiflora 'Clear Sky' has greater vigour and larger flowers with greater substance.
This is our selection of the hardy blue passionflower, Passiflora caerulea, with larger flowers with bluer blues and blacker blacks!
Passiflora 'Betty Myles Young' offers exquisitely detailed, large, lightly scented passionflowers.
Passiflora 'Silly Cow' has dark purple filaments against pale lilac petals. Gorgeous.
True blue spikes of tubular flowers.
True deep blue spikes of tubular flowers.
'Margarita BOP' is a strong, winter hardy Penstemon with tubular flowers in shades of blue and purple produced in masses all summer long.
Penstemon linarioides var. coloradoensis 'Silverton' forms evergreen, silvery mounds topped with spikes of blue, purple, and pink tubular flowers.
Penstemon strictus is a tall, dramatic species to about 30 inches with bold blue and purple tubular flowers.
Penstemon 'Cha Cha Lavender' offers tubular lavender purple and white flowers all summer long.
Perovskia atriplicifolia 'Blue Steel' has some of the darkest blue flowers of the Russian sages.
Perovskia 'Denim 'n' Lace' is a dwarf cultivar of Russian sage with silvery foliage and purple-blue flowers.
Perovskia 'Lacey Blue' is a dwarf cultivar of Russian sage with the classic silver-green foliage and purple-blue flowers.
Perovskia 'Silvery Blue' is a dwarf cultivar of Russian sage with extra silver foliage and purple-blue flowers.
Carpets of fragrant blue flowers in spring.
Carpets of fragrant violet blue flowers in spring.
Phlox paniculata 'Blue Paradise' is mildew-resistant with a spicy vanilla-clove fragrance and lavender-blue flowers.