20-3-19 Petunia Special with Black Iron

Optimized to grow great petunias, bacopa and calibrachoa

20

N

3

P2O5

19

K2O
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Peters Professional Petunia Special is specifically designed for petunias and other high iron demanding plants. This unique formulation contains three chelated irons, including black iron—the most effective for growing iron hungry ornamentals.

  • Provides iron to plants over the widest pH range to encourage dense, compact growth

  • Ideal for plants that thrive in low pH growing media

  • Fortified with iron HBED, DTPA, and EDTA

  • Elevated magnesium levels improve the calcium/magnesium ratio in hard water environments

  • Pure formulation—no ballast substances

  • Effective for all water types

  • Elevated levels of chelated trace elements ensure robust growth and rich color

  • Contains NPK, magnesium and micronutrients

  • Developed for peat-based cultures (pot plants, bedding plants, and container nursery stock)

Mix ratios (non-injector)

Fertilizer + Water (gallons) = Approx. N (ppm)
FertilizerWater (gallons)Approx. N (ppm)
1 tsp. (level)1305
1 tbsp. (level)2457
1 cup (level)25585

 

 

Product properties

Potential acidity377.7 lbs. calcium carbonate equivalent per ton
Conductivity (100 ppm N)0.77 mmhos/cm.
Maximum solubility4 lbs./gal.

 

 

Weight (oz.) of product needed to mix one gallon of concentrate

Target concentration (N/ppm) after dilution
EC (mmhos/cm.) of target feed rate after dilution
Injector ratios
1:151:1001:1281:2001:300
250.31.72.23.45.10.19
500.53.44.36.810.10.39
750.85.16.510.115.20.58
1001.06.88.613.520.30.77
1251.38.410.816.925.30.96
1501.510.113.020.330.41.16
1751.811.815.123.635.41.35
2002.013.517.327.040.51.54
2502.516.921.633.850.61.93
3003.020.325.940.560.82.31
3503.523.630.247.370.92.70
4004.127.034.654.0EMS3.08
4504.630.438.960.8EMS3.47
5005.133.843.267.5EMS3.85
6006.140.551.8EMSEMS4.62
EMS = exceeds maximum solubility

 

 

Gallons of water needed to dissolve one 25 lb. bag of fertilizer

Target concentration (N/ppm) after dilutionEC (mmhos/cm.) of target feed rate after dilution
Injector ratios
1:151:1001:1281:2001:300
251580.2237.0185.2118.579.00.19
50790.1118.592.659.339.50.39
75526.779.061.739.526.30.58
100395.159.346.329.619.80.77
125316.047.437.023.715.80.96
150263.439.530.919.813.21.16
175225.733.926.516.911.31.35
200197.529.623.114.89.91.54
250158.023.718.511.97.91.93
300131.719.815.49.96.62.31
350112.916.913.28.55.62.70
40098.814.811.67.4EMS3.08
45087.813.210.36.6EMS3.47
50079.011.99.35.9EMS3.85
60065.89.97.7EMSEMS4.62
EMS = exceeds maximum solubility

1
Consult rate tables printed on bag labels.
2
Verify product analysis, longevity, and rate for plants in your production system (for assistance, contact your regional ICL Territory Manager or call the ICL Lab at 877-467-8522).
3
Irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions, and desired soluble salt levels.
4
A product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices (test several rates on representative plant types).
5
Store in a clean, cool, dry place.

Brand details

This product is part of the Peters Professional portfolio

Specially formulated for high-iron plants, the exclusive M-77® chelating package ensures fast, efficient nutrient uptake.

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