Centennial Growth Resources

  • List of substrates available for use individually or custom mixed upon request.

    SubstrateCompositionPurpose
    Sunshine Propagation MixFine Canadian Sphagnum Peat Moss-CREATED Fine Perlite Dolomite Lime Fine Canadian Sphagnum Peat Moss Long-Lasting Wetting Agent RESiLIENCERecommended for seed starting, plug trays and cutting liner propagation trays
    JollyGardener CB Mix45% Peat Moss 33% Fine Pine Bark 12% Coarse Perlite 10% Medium Vermiculite C/B is an appropriate soil mix for: Flowering and foliage plants, hanging baskets and bedding plants.
    Industrial Fine SandSieve size 10-45
    0.355 mm – 2.00 mm
    As hydroponic substrate and increasing soil drainage
    Industrial Coarse SandSieve size 4-20
    0.84 mm to 4.75 mm
    Increasing soil drainage. Used in a 2:1 mix with prop mix.
    PerliteCoarse
    Expanded hydrated volcanic rock
    Amendment to improve aeration and drainage
    VermiculiteCoarse
    Expanded magnesium-aluminum-iron silicate mineral
    Used as a soil amendment to improve moisture and nutrient retention while providing light aeration. It is frequently mixed into seed-starting mixes and potting soils.
    TurfaceKiln-fired, calcined clay aggregateFeatures roughly 74% internal pore space, allowing it to absorb its weight in water. Improve drainage and prevent root rot

  • Available pot and 1020 cell insert sizes provided.

    TypeManufacturer/ModelWidth (Top x Base)Height
    4.5"HC Companies/XGR045004.5"3.75"
    0.75 gallonNSI/300S6.5"6.5"
    1 gallonNSI/400C7.75"7"
    2 gallonNSI/900C9.5"9.25"
    3 gallonNSI/120011"9.5"
    8 cellTO Plastics4.75" x 4.75"5.25"
    18 cellTO Plastics3" x 3"4.25"
    24 cellTO Plastics2.25" x 3"3.25"
    36 cellTO Plastics2" x 2"2.25"
    48 cellTO Plastics1.5" x 2.25"2.25"
    128 cellGrower Select Plug Trays1.11" x 0.67" 1.625"

  • List of emitter rates and irrigation available.

    EmitterPatternFlow Rate (GPH)


    90 Degree


    3.6


    160 Degree


    7.2


    360 Degree


    12.6


    360 Degree


    1.5

  • List of calculated element values in prepared nutrient stocks when diluted 1:100.

    ElementJack's Base Stock+Growth Supplement+Bloom Supplement
    (mg/L)(mg/L)(mg/L)
    NitrateN-NO378.178.178.1
    AmmomiumN-NH421.921.921.9
    PhosphorusP10.310.3100
    PotassiumK83108222
    CalciumCa17.617.617.6
    MagnesiumMg8.88.88.8
    BoronB0.10.10.1
    CopperCu0.050.050.05
    IronFe0.50.50.5
    ManganeseMn0.250.250.25
    MolybdenumMo0.050.050.05
    SulfurS02020
    ZincZn0.250.250.25