PlantsActinidia→Hardy Kiwi (Actinidia 'Issai')

Common names:
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General Plant Information (Edit)
Plant Habit: Vine
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 10b
Plant Height: 12 to 20 feet
Plant Spread: 3 to 5 feet
Leaves: Deciduous
Fruit: Showy
Edible to birds
Other: 1 1/2 inch smooth skinned green fruits.
Fruiting Time: Late summer or early fall
Flowers: Showy
Blooms on old wood
Flower Color: Other: Greenish-white
Flower Time: Late spring or early summer
Edible Parts: Fruit
Wildlife Attractant: Bees
Propagation: Seeds: Self fertile
Pollinators: Bees
Various insects
Parentage: Actinidia arguta x Actinidia rufa


Photo gallery:
Location: NW Oregon Date: 2014-06-02
By Toni
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Location: Vaughan, ON, CanadaDate: 2012-06-29
By Anne
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Photo courtesy of Annie's Annuals and Perennials
By Calif_Sue
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Location: NW Oregon Date: 2014-06-02
By Toni
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Location: NW Oregon Date: 2014-06-02
By Toni
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Credit USDA
By admin
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Location: Sherwood OregonDate: 2016-06-27
By Toni
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This plant is tagged in:

Posted by Toni (Sherwood Oregon - Zone 8a) on Aug 22, 2014 11:18 PM

The Hardy Kiwi ‘Issai’ is a very aggressive vine. It requires a very sturdy trellis, most commonly constructed from at least four 4 x4’s for the anchor posts and 2 x 2’s as the top lattice. Also, the vine must be pruned at least yearly. The plant will take 5 years to set a decent amount of fruit. After 5 years it will be a very prolific producer of delectable large grape-sized fruits with soft edible skins that taste like the more common larger kiwis found in most grocery stores.

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Posted by EdibleLSGardener on Oct 18, 2018 8:33 AM

I got a new Issai kiwi from local nursery. All articles online say I should keep only one trunk for each plant, but I have 3 almost identical trunks from the root. Each has some smaller roots going to the soil. Should I separate it into 3 individual plants so each one will have a single trunk? If it is doable, what is the best time to do so?

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Discussion Threads about this plant
Thread Title Last Reply Replies
Hardy Kiwi by DrReneigh Jun 19, 2021 8:32 PM 3
Issai kiwi by Seawolves Jun 10, 2018 3:31 PM 1
Hardy kiwi bloom dates (A. Arguta vs. A. Kolomikta vs. A. Issai vs. Flowercloud by Archer007 Apr 28, 2018 12:31 AM 0
kiwi fruits by petenunes Apr 15, 2018 5:57 PM 6
Hardy kiwi by plantcollector Nov 9, 2019 7:15 AM 6
I need a new plant addiction by Kabby Sep 14, 2016 7:49 PM 10

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