U.S. Patent (USPPAF)
Southern Highbush Blueberry Variety

General Description

       Magnus is an early season cultivar of large fruit for hand harvesting. Key attributes are:

  • Cultivar name: Magnus (selection code FL 04-213)​

  • Region best adapted to:

  •  Production system​:

  •  Hydrogen cyanamide:​ Can be used with or without hydrogen cyanamide

  • Machine Harvestability:

  • Per plant yields:​

  • Known disease susceptibility: 

  • ​ Known pest damage susceptibility: 

  • ​ Fruit quality data:

          Fruit firmness: average 190g/mm average similar to 'Kestrel'

          Berry Weight: average 2.7 grams, similar to 'Emerald'

          o Berry Diameter: average 20mm, similar to 'Emerald'

          o Brix: average 11.3, similar to Emerald

         Brix/Acid Ratio: 

          o Fruit scar: 

          o Wax/bloom: 

          o Fruit defects: 

          o Flavor: 

          o Aroma:

  • Cultivars similar flowering time:​

  • Other information: 

          o High yield potential

          o Early bloom and early production of large fruit for hand harvest

          o Very consistent across years

          o Good survival capacity

          o Less Vigor than Emerald

          o Still to be tested in Central FL

          o May require freeze protection in January


Performance 2018 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)

Magnus_Citra FL_2019
Magnus_Central-North FL_2019
Magnus_Citra FL_2018
Magnus_Central-North FL_2018
Magnus Gallery
License Availability

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


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