Photo by Melody

PlantFiles: Gentian
Gentiana makinoi 'Royal Blue'

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Family: Gentianaceae (jen-shun-AY-see-ee) (Info)
Genus: Gentiana (jen-shee-AN-uh) (Info)
Species: makinoi (MACK-kin-oy) (Info)
Cultivar: Royal Blue

One vendor has this plant for sale.

One member has or wants this plant for trade.

Category:
Perennials

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)

Spacing:
15-18 in. (38-45 cm)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Danger:
Unknown - Tell us

Bloom Color:
Dark Blue

Bloom Time:
Late Summer/Early Fall

Foliage:
Herbaceous
Blue-Green

Other details:
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Morganics On Feb 4, 2015, Morganics from Tullahoma, TN wrote:

I acquired this plant from Munchkin Nursery in 2005. It languished for eight years in dry shade. Then I moved it to a southwestern exposure in bright dappled shade with abundant moisture and it took off like a rocket. Considering it was totally neglected and grazed by deer all those previous years, I must conclude that this plant is tough as nails. It was a stunner in late summer last year, and I fully expect it to be doubly stunning this year. I'm deciding right now what sort of "socks and shoes" plants to surround it with this year, as its quite tall and has no basal foliage. I may also buy two more of this gentian to create an eye-popping stand of true blue.

Regional...

This plant has been said to grow in the following regions:

Palmer, Alaska
Hendersonville, North Carolina
Tullahoma, Tennessee



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