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Dianella 'Cassa Blue' PP 17,998
JLBG @ Juniper Level Botanic Gdn, NC

Dianella 'Cassa Blue' PP 17,998

Cassa Blue Flax Lily

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Item #: 10698

Zones: 7b to 9b

Dormancy: Evergreen

Height: 20" tall

Culture: Sun

Origin: Australia

Pot Size: 3.5" pot (24 fl. oz/0.7 L) ?


Note: This plant is not currently for sale. This is an archive page preserved for informational use.

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(aka: Dianella 'DBB03') Dianella 'Cassa Blue' is touted as a hardy form of the Australian landscape staple Dianella caerulea, but we doubted the hardiness claims until our trial plants came through our mid-single digit winter cold during the winter of 2013/2014...now, we'd like to share. Dianella 'Cassa Blue' forms a dwarf phormium-like clump of stiffly upright, glaucous silver-blue 0.75" wide foliage that forms a tight 20" tall x 3.5' wide clump. Dianella 'Cassa Blue' is adorned with 15" tall flower stalks of small blue flowers in late spring/early summer. Dianellas prefer full sun and well-drained soils. Dianella 'Cassa Blue' is a 1996 Todd Layt/Ozbreed Plants introduction, a hybrid of a Dianella caerulea from Sydney and the baby daddy was most likely Dianella longifolia...what a splendid union!

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