Illiny Hardy blackberry variety

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Selected for northern growers. One of the best rate of winter survival of all the blackberry varieties, acceptable for cold areas with returning frosts and unpredictable springs

Originated from a cross of

Originated from a cross of Chester Thornless x NY 95

Plants are

Plants are thorny

Bushes have

Bushes have erect canes

Fruit weight is

Fruit weight is 4 g


Berries have a rounded shape

Fruiting habit

Fruiting habit - floricane fruiting (summer-bearing)

Flowering on floricanes starts in the

Flowering on floricanes starts in the third week of May

Ripening date (regular) -

Ripening date (regular) - second week of July

Productivity is

Productivity is 4300 kg from ha

Soluble solids

Soluble solids - 10.1%

Cold hardiness is

Cold hardiness is extremely high

Country of origin

Country of origin - United States


Patent Plant 8,333 dated August 02, 1993

Current status

Current status - obsolete or rarely used

This blackberry variety specially selected for regions, which are too cold for successfully growing blackberry. Illiny Hardy is thorny and erect, height of plants is moderate 1-1,5 m, after this height plants begin to arch. Cultivar produces most of its root suckers within 25 to 30 cm, suckering is limited (from 6 to 10 stems). Stems are large in diameter (from 2 to 3 cm at the beginning). As the floricane matures, the mature stems become reddish brown. The primocanes emerge beginning in the middle of May and continue to emerge through the month of July. Thorns are long and sharp.
Plants bloom in May, last flowers can be seen on the bushes up to late June. The flowers are white and contain a branched cymose inflorescence. Berries ripen from mid to late July (very depend of region). Color is black, glossiness is retained even when the fruit is overripe. The flavor of the fruit is acidic but flavorful, and resembles the flavor of wild blackberries. 
Illiny Hardy has survived temperatures as low as minus 30 C, that is one of the best results from all known blackberry varieties.

Useful Growing Guides

Useful Growing Guides:

Hull Thornless
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