Pansy Tech Share

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Tech Sheet for Pansies

Fred Hulme, PH.D., Technical Service, ICL Specialty Fertilizer

Overall comments on Pansies:

• Pansies are not very demanding if root-zone pH’s are maintained below

5.8.

• Adequate Magnesium and Iron will ensure dark green foliage.

• Pansies require higher levels of Boron to prevent growing point disorders.

• Avoid high Phosphorous formulations to avoid stretch.

100% Water soluble fertilizer (WSF) program:

• Ideally fertilizer selection should be based on a current water analysis

(contact your ICL representative for more details).

• A good general program would be Peters Excel® 15-2-20 Pansy, Salvia,

Vinca Special at 100 to 125 ppm N on a constant basis.

• Commence feeding at planting or as soon as plugs are rooted in.

• WSF applications should be reduced several weeks before shipping – switch

to Peters Professional® 15-0-15 at 75 ppm N.

100% Controlled release fertilizer (CRF) program:

• Osmocote® Bloom (2-3 mo. at 70°F in N. zones/ 5-6 mo. at 70°F in S. zones)

incorporated at 3 to 5.5 lbs. per cu. yard.

• Media should be used within 2 to 3 weeks after mixing in CRF.

• Select a longer term product to extend feeding in the garden center and to

help plants establish in the landscape.

Combination fertilizer program:

• Osmocote® Bloom (2-3 mo. at 70°F in N. zones/ 5-6 mo. at 70°F in S.

zones) incorporated at 2 to 4 lbs. per cu. yard.

• A good WSF product would be Peters Excel® 15-2-20 Pansy, Salvia, Vinca

Special at 50 to 75 ppm N on a constant basis.

Supplements:

• Add Magnesium in form of Peters Excel® Magnitrate 10-0-0 at 4 oz. per

100 gallons on a constant basis if Mg is lacking in program.

• Apply a medium rate of H2Pro® liquid before shipping to help prevent

wilting in the post-harvest phase.

Problem solving:

• Use higher nitrate N formulations to avoid ammonium toxicity (V shaped

foliar chlorosis and downward cupping leaves).

• Weekly drenches of Boron at 0.25 ppm (from Borax) can prevent

deficiency symptoms.