Gentiana scabra 'Gento' ROCKY DIAMOND BLUE HEART

Gentiana scabra 'Gento' ROCKY DIAMOND BLUE HEART
autumn gentian, Japanese gentian

SIZE/TYPE	low perennial
USUAL HEIGHT	0.1-0.1m
USUAL WIDTH	0.2-0.3m
LEAVES	evergreen broadleaf
COLOUR OF LEAVES	green
FLOWERS	showy
COLOUR OF FLOWERS	combined:indigo blue and white
BLOOMING TIME	August - October
LOCATION	full sun
USDA zone (lowest)	5 (down to -29°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Perennials

Gentian is one of the most beautiful perennials where the most sought after varieties bear blue flowers. Because their blue is true blue, bluer than the ocean, darker than the summer sky, almost like indigo. The family consists of more than 400 species which often hybridize among themselves. ROCKY DIAMOND BLUE HEART is a variety from Denmark, bred and found by Rune Nielsen in 2007. It was patented under PP21924 in 2011.

ROCKY DIAMOND BLUE HEART is the autumn gentian with late season flowering. It starts in August, producing large trumpet flowers of rich blue colour with white throat and black dots. Flowers appear continuously until the first frost. Evergreen leaves are dark green and glossy, thick, somewhat ovate to lanceolate, and pointed. This variety was selected for a neat and very compact growth.

Gentian is a slow growing, mat-forming perennial requiring zero maintenance. Plant it in humus-rich, reliably moist but well-drained soil in full sun or only partial shade. Autumn flowering species require slightly acid soil. Hardy to about -29°C (USDA zone 5).

Last update 05-10-2016

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GLOSSARY

STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
SHRUB - a woody plant with branches growing bushy from the ground level.
HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.