Photo by Melody

PlantFiles: Hosta
Hosta aequinoctiiantha

Family: Liliaceae (lil-ee-AY-see-ee) (Info)
Genus: Hosta (HOSS-tuh) (Info)
Species: aequinoctiiantha (ek-kwin-no-shee-EYE-anth-uh) (Info)

» View all varieties of Hostas

Plant Size (check one):
Medium (leaf 25-81 square inches; plant 10-18 tall)

9-12 in. (22-30 cm)

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)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Partial to Full Shade
Full Shade

Other details:
Average Water Needs; Water regularly; do not overwater

Patent Information:
Unknown - Tell us

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored

Growing Habit:

Growth Rate:

Leaf Shape:

Leaf Appearance:

Degree to which the appearance is present:

Leaf Texture (top):
Slightly Shiny

Leaf Texture (bottom):
Slightly Shiny

Leaf Substance:
3 (Average)

Leaf Color:
Medium Green

Color of Leaf Margin:
Unknown - Tell us

Number of Vein Pairs:
Fewer than 9

Appearance of Margin:
Slightly Rippled
Heavily Rippled

Margin Width:
Unknown - Tell us

Bloom Time:

Flower Shape:
Unknown - Tell us

Flower Fragrance:
No fragrance

Does it set seed?:
Unknown - Tell us

Bloom Color:
Pale Purple

Click thumbnail
to view:

By bert
Thumbnail #1 of Hosta aequinoctiiantha by bert

By kees
Thumbnail #2 of Hosta aequinoctiiantha by kees

By dragonflynik
Thumbnail #3 of Hosta aequinoctiiantha by dragonflynik

By lmelling
Thumbnail #4 of Hosta aequinoctiiantha by lmelling


No positives
2 neutrals
No negatives

Gardeners' Notes:

Neutral lmelling On Jan 14, 2005, lmelling from Ithaca, NY (Zone 5b) wrote:

Because photos and descriptions of this particular hosta did not seem to match and was extremely confusing, I took the opportunity to write to W. George Schmid of the AHS, who provided the information below for the actual species. He told me in his letter that so-called H. aequinoctiiantha plants in the trade many not be that species because incorrect descriptions based on these plants point to that. Thanks to Mr. Schmid for the following description of the species:

H. aequinoctiiantha@r Koidzumi ex Araki 1942.
(Figure 31; Plate D14).
(Kanji No. 189).

Ohigan Giboshi, the ``hosta of the equinox,'' was collected by Kitamura at Yoro-mura in Gifu Prefecture of Central Honshu in 1941. It grows on rocky ledges and outcrops and blooms two to three weeks later than H. longipes, around the time of the autumnal equinox, September 22, hence the name. Similar to H. longipes, but smaller, it has thin, papery leaves, fewer principal veins, and a more undulate leaf surface and margin. Fujita considered it a variety of H. longipes as H. longipes var. aequinoctiiantha. Hosta `Iwa Soules' Horinaka cultivated in North America has thicker leaves and blooms a little earlier, but is otherwise very similar to the species and may represent one of the many clones existing among the wild, polymorphic population. Available, but rarely seen, it is a collectors' item.

Plant size 3540 cm dia., 30 cm high (1416 by 12 in.). Petiole 12.517.5 by 0.3 cm (57 by 0.125 in. wide) erect, green, purple-dotted, starting at leaf base, becoming progressively darker towards ground. Leaf 7.512.5 by 5 cm (35 by 2 in.), erect and in line with petiole, entire, oval-ovate, petiole transition rounded, truncate, smooth, wavy, membranous, thin; tip acuminate, cuspidate; green to dark green above, lighter, opaque green below. Venation 45, sunken above, very projected, smooth below. Scape 2545 cm (1018 in.), straight, but bending obliquely, purple-dotted entire length, smooth round. Fertile bracts 1 cm long (0.3 in.) navicular, thin, membranous, white or whitish green, purple-tinted, imbricated, not withering. Raceme 1520 cm (68 in.), 1020 flowers. Flowers pale purple, held erect in horizontal position on long, strong horizontal or slightly ascending purple pedicels, perianth 5 cm (2 in.) long, funnel-shaped, expanding, in the central part dilated bell-shaped, lobes spreading straightly to @+angled to the axis of perianth, thin narrow hexagonal tube. Anthers purple, uniformly dotted. September/October. Fertile.
SY: H. longipes var. aequinoctiiantha Fujita 1976a na.
H. okamotoi Fujita 1976a sl na.
HN: H. `Iwa' hort. pp sim.
JN: Ohigan Giboshi Koidzumi 1942.

Neutral jody On Aug 9, 2002, jody from MD &, VA (Zone 7b) wrote:

Flower scapes 10"-18" high. Was species, reduced to cultivar

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America