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Hydrangea — Acid-loving foliar Fe+Mg+Mn (chlorosis fast-track)

Zone: Hydrangeas — in-ground bed (Hortensia) · Stage: vegetative

Fast-acting foliar Fe + Mg + Mn for hydrangea chlorosis. Companion to soil drench, not replacement. Existing leaves won't recover; new growth post-spray will be greener within 5-7 days.

Products (7)

#ProductmL/LRole
1Base-Line2.0Fulvic chelator + acidifier
2Topraq-Fe1.5Fe foliar (gluconic-chelated sulfate — effective via leaf even in alkaline soil)
3Topraq-Mg2.0Mg — chlorophyll co-factor
4Topraq-Mn1.0Mn — co-deficiency common with Fe in alkaline
5Fast-Line1.5Carboxylic acid — uptake + pH drop
6Alga-Line2.0Chlorella biostimulant
7Bacto-Line1.5Bacillus shield — LAST in tank

Intentionally excluded

quadro-k — K not deficiency target here; separate K drench if needed
topraq-b — Not needed for chlorosis correction
topraq-ca — Sulfates in tank
topraq-cu — Kills Bacto-Line; not indicated

Total ~11.5 mL/L (~2L tank = 23 mL liquids). Apply EARLY morning 06:30-08:30; underside coverage priority. Pair with FERROS soil drench for full effect (drench was 2026-05-18). For 4-5 plants, 2 L gives generous coverage. Track recovery via NEW emerging leaves at day 5-7 post-spray (existing damaged leaves don't recover).