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Raven FL05-627

U.S. Patent PP21,374
Southern Highbush Blueberry Variety


Raven is a late-flowering, early leafing cultivar with good large fruit of good quality and flavor.


Cultivar name: (selection code FL05-627)

Recommended for Florida: no, too late for the Florida season

FL region best adapted to: none

Production system: deciduous

Hydrogen cyanamide: no data available

Machine Harvestability: no data yet

Per plant yields (Density 1,452-1,742 plants/acre):

       o North-central FL (2019): 6.2 lbs/plant

Known disease susceptibility: none observed to date

Known insect damage susceptibility: none observed to date

Fruit quality data:

       o Fruit firmness: 284 – 314 g/mm, average 310 g/mm, much higher than Emerald

       o Berry Weight: 3.2 – 3.5 grams, average 3.4 grams, higher than Emerald

       o Berry Diameter: 19.8 – 20.4 mm, average 20.0 mm, larger than Emerald

       o Brix: 11.4 – 12.7, average 11.8, similar to Emerald

       o Brix/Acid Ratio: 65.2 – 83.7, average 70.7, much higher than Emerald

       o Fruit scar: medium and dry

       o Wax/bloom: medium, similar to Emerald Fruit defects: none observed

       o Flavor Score: 27.5 – reference Emerald (19.9), Kestrel (29.2)

       o Aroma: low

Cultivars with overlapping timing of flowering: San Joaquin, Emerald, Farthing

Other information: Flowers later than many Florida blueberry cultivars. Early leafing pattern coincides well with its flowering time. Large berries cluster loosely on the plant, have low acidity and a mild flavor, with good texture and some aromatic characteristics, and maintain good firmness on the bush for a long time after maturity.

License availability: For a list of current nursery licensees in the USA, click here

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Performance 2018-2019 Season

Fruit Quality and Yield

The following plots show the most important fruit quality traits and yield, across the season.

The vertical lines in the yield plots indicate when 10%, 50% and 90% of the harvest was achieved during the season.


Dotted lines indicate the desired values for new cultivars:


  • Berry weight greater than 2g

  • Fruit Diameter greater than 14mm

  • Firmness higher than 150g/mm

  • Brix higher than 10%

  • TTA less than 1%

  • Brix/TTA higher than 14 units


Warning: Yield plot coming from harvesting of two bushes. Values may seem overestimated as all the fruit from the bush is harvested, and because this is harvest yield and no packed yield. Use this data to compare among cultivars and no to predict potential yield on your farm.


Measurements are in grams (g). To convert from grams to pounds (lb) use the following formula:

lb of fruit per bush = (g of fruit) x (0.002204)

Raven_Citra FL_2019
License Availability

For licensing availability contact Florida Foundation Seed Producers (FFSP):​​

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