Nightfall blackberry variety

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Commercial trailing blackberry cultivar which, adapted to machine harvesting, has yield and processed fruit quality very similar to world-known blackberry cultivar Marion

Botanical designation

Rubus subgenus Rubus Watson 'Nightfall'

Originated from a cross of

Originated from a cross of Marion x Waldo

Variety denomination

Variety denomination - 'Nightfall', tested as ORUS 1486-2

Plants are

Plants are thornless

Bushes have

Bushes have trailing canes

Fruit weight is

Fruit weight is 6 g


Berries have a conical shape

Fruiting habit

Fruiting habit - floricane fruiting (summer-bearing)

Flowering on floricanes starts in the

Flowering on floricanes starts in the first week of June

Ripening date (regular) -

Ripening date (regular) - third week of July

Productivity is

Productivity is 24000 kg from ha

Soluble solids

Soluble solids - 12.75%


Acidity - 3.0%

Cold hardiness is

Cold hardiness is moderate

Heat tolerance is

Heat tolerance is low

Country of origin

Country of origin - United States

Current status

Current status - obsolete or rarely used

Recommended replacement

Recommended replacement - Columbia Sunrise

Nightfall is a thornless trailing blackberry cultivar from the Department of Agriculture - Agricultural Research Service breeding program in Corvallis, released in cooperation with the Oregon State University Agricultural Experiment Station and the Washington State University Agricultural Research Center, United States.
Nightfall is adapted to machine harvesting and has yield and processed fruit quality very similar to world-known blackberry cultivar Marion. It is one of three thornless varieties which are being released simultaneously - Black Diamond, Nightfall and Black Pearl. These cultivars was intended to replace Marion variety, which hasn't good post-harvest characteristics.
Nightfall is thornless blackberry variety, but primocanes have some thorns on the basal. These thorns are soft and smooth. Also child canes from root are thorny. Nightfall harvest begins at the few days of July, peaks in early July and is largerly done by the third week of July in south regions. Fruits of Nightfall are similar in shape to Marion berries, they are a medium long conic and can have a blunt tip. Flavor is excellent. Fruit firmness is sufficient for machine harvesting and transportation. Yield is little more than Marion, average berry weight is 6 g.
Winter hardiness is about minus 13 C. Nightfall blackberry has sufficient resistance to different diseases.
Table 1. Comparison table of Nightfall, Silvan, Black Diamond, Marion, Black Pearl, Waldo and Siskiyou blackberry cultivars at the North Willamette Research and Extension Centre, Oregon State University (planted in 1999)
Cultivar Fruit weight, g Yield, kg/ha
2001-2003 2001 2002 2003
Nightfall 6.2 42447 13405 20962
Black Pearl 6.2 26969 14373 15505
Silvan 6.2 31757 16811 21845
Black Diamond 5.8 29281 15568 19001
Marion 5.1 26380 13021 18397
Waldo 5.5 25849 11000 17286
Siskiyou 6.9 20969 9854 9359
Table 2. Averaged harvest season duration of Nightfall and other varieties for several years (2001-2003 harvested, 1999 planted)
Cultivar Harvest season
5% Peak 95%
Nightfall July 3 July 11 July 23
Black Diamond June 28 July 8 July 21
Silvan June 26 July 8 July 21
Marion July 3 July 10 July 22
Siskiyou June 25 July 8 July 25
Obsidian June 25 July 4 July 15
Black Pearl July 3 July 10 July 24
Metolius June 25 July 3 July 14
Waldo July 8 July 22 August 7

Nightfall  sweet?

Is blackberry Nightfall sweet?

Nightfall blackberries mostly have a sweet flavor
Diseases resistance

What diseases is blackberry Nightfall resistant to?

Nightfall is resistant to most fungal diseases
Diseases susceptibility

What diseases is blackberry variety Nightfall vulnerable to?

No susceptibility to spicific pests or diseases has been observed for Nightfall
Useful Growing Guides

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