BRK – Low water retention

Formulated with an aged pine bark, PRO-MIX BRK is nitrogen stabilized and therefore well suited for growers who require more frequent dry down periods and have to compose with a changing growing environment. PRO-MIX BRK is a carefully design low water retention growing medium which will provide quality and consistency for great results.

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Usage Guidance


  • Annuals
  • Potted flowering plants
  • Perennials
  • Potted trees and shrubs


  • Difficult to overwater crops
  • Increased drainage
  • High bulk density ensures good pot stability
  • Growers can use fertilizer regimes similar to peat-based mixes, unlike other bark-based mixes


  • VeriFlora® is an agricultural sustainability certification and eco-labeling program recognized as the gold-standard in the floriculture and horticulture industries.
Susan Parent Horticulture Specialist

Advice from our specialist

Formulated with aged pine bark, PRO-MIX BRK is nitrogen-stabilized and therefore well suited for growers who require more frequent dry down periods and who have to deal with a changing outdoor growing environment. PRO-MIX BRK is a carefully designed low water retention growing medium which will provide quality and consistency for great results.

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Training center


  • SPHAGNUM PEAT MOSS (45-55%) ?

    Canadian Sphagnum peat moss is a natural, organic matter that comes from a peat bog. This primary resource is carefully harvested by vacuum harvesters. Peat moss comes in various fibrosity and levels of decomposition. Once carefully graded, peat moss assures that qualities of each grade are optimized for based on grower and uses for a final product reaching high quality requirements.


    Processed pine bark consists of partially composted aged pine bark derived from predominantly red pine species. The pine bark is screened, graded and aged turned to partially compost to improve and stabilize the carbon:nitrogen ratio.


    Perlite is an alumino-silicate ore of volcanic origin. The raw ore is crushed, graded and screened in various particle sizes. Perlite has a high total-porosity and improves drainage and air porosity.


    Used to adjust pH to optimum range. Also a source of Calcium and Magnesium.


    A wetting agent is a substance that reduces the surface tension of water, allowing water to penetrate and uniformly wet growing media.

Documents and specifications

Code Size (Regional availability may vary) Units per pallet Weight
50280RG 2.8 cu ft Loose 48 45 - 60 lb
50600RG 60 cu ft Comp. 2 900 - 1250 lb
Size (Regional availability may vary) 2.8 cu ft Loose
Units per pallet 48
Weight 45 - 60 lb
Size (Regional availability may vary) 60 cu ft Comp.
Units per pallet 2
Weight 900 - 1250 lb

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