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		Database for the Plant Genus Hosta American Hosta Society  
Oshima Silk - 2009

REGISTERED

Originator: T. Shimizu    Nominant: M. Vanous    Introducer, Registrant: M. Zilis   

Registered Clump
Registered Leaf

Clump Description

Growth Rate
slow
Notable Characteristics
A variegated seedling of Hosta pycnophylla obtained from Japan in 2006; the name is derived from the small island in the Inland Sea where H. pycnophylla is native.
Plant Width
25
Plant Width (cm)
63.5
Plant Height
12
Plant Height (cm)
30.5
Plant Habit
mound-like

Leaf Description

Leaf Color Center
medium green
Leaf Color Margin
pure white
Leaf Length
7
Leaf Length (cm)
17.8
Leaf Width
4.5
Leaf Width (cm)
11.4
Vein Pairs
10 to 11
Margin Appearance
slightly rippled
Width of Margin Var.
.25
Width of Margin Var. (cm)
.6
Leaf Texture Top
dull
Leaf Texture Bottom
glaucous bloom
Leaf Appearance
flat
Leaf Shape
ovate
Leaf Base
rounded

Scape Description

Flower Description

Flower Color
pale purple
Growing Location
Rochelle, IL
Flower Time
Aug 15 to Oct 1

Seed Information

Clump History

Clump's Origin
original seedling
Clump Source
obtained from Mr. Shimizu, Iwakuni, Japan
Age of Clump
3

Parentage

Pod Parent
H. pycnophylla
Pollen Parent
unknown

Additional Information

Section Class
III-4b
Additional Comments

Perennial Nursery's hosta forum states that M. Zilis agreed the tc specimens on the market are not the same as what was registered. See http://www.perennialnursery.com/forums/viewtopic.php?f=1&t=60993&sid=177ed70b86893fb583190d2bcee19ced

The Registrar contacted Mark Zilis for clarification.  April 28, 2018 Mark stated "I obtained 'Oshima Silk' from Mr. Shimizu in Japan in 2006. It is a seedling of H. pycnophylla with a distinctly white back.....At this point, I do not think it advisable to change the registration."

Classification Information

Section Class
III-4b
Classif Leaf Length
7
Classif Leaf Width
4.5
Classif Leaf Color
medium green
Classif Margin Color
pure white


Full Classification List

Simplified Classification List

Cover Pages for Classification Lists

Quick Reference Table for Leaf Sizes and Colors

The American Hosta Growers Association is proud to honor the legacy of AHGA member Steve Greene.

www.hostagrowers.org


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Vendor

Price

Mason Hollow Nursery
47 Scripps Lane Mason, NH 03048
603-878-4347 - www.masonhollow.com

$25.00

Average Price: $25.00

Email Gayle Hartley Alley