Peters Professional 20-3-19 Petunia Special with Black Iron | 25lb (80/PL)

Triple-Chelated Iron Formula for Petunias, 25lb

Petunias and other high-iron-demanding plants can show interveinal chlorosis fast when iron chelation isn't strong enough to hold up across a range of growing media pH. Peters Professional 20-3-19 Petunia Special is a water-soluble fertilizer with a formulation of three chelated irons, including Black Iron, built through a new M-77 chelated system specifically designed for petunias and other high iron-demanding plants.

Sold as a 25lb bag, 80 per pallet, acidic 378 lbs. CCE, no urea.

Key Features & Benefits

• Three chelated iron sources, including Black Iron — a triple-chelate approach to iron availability.
• New M-77 chelated system — specifically designed for petunias and other high iron-demanding plants.
• Widest-pH-range iron availability via Black Iron — the strongest iron chelate used for growing ornamentals.
• Acidic 378 lbs. CCE, no urea — a strong acidifying technical profile.

Who Should Use Peters Professional 20-3-19 Petunia Special

This fits growers of petunias and other high iron-demanding plants who need reliable iron availability across a wide range of growing media pH, not just under ideal acidic conditions.

About Peters Professional 20-3-19 Petunia Special

Peters Professional 20-3-19 Petunia Special is manufactured by ICL Growing Solutions as part of the Peters Professional water-soluble fertilizer line, enhanced with ICL's proprietary M-77 chelating technology for efficient nutrient uptake.

Frequently Asked Questions

When and how should petunia growers apply this feed?

Feed it as your regular water-soluble program for petunias and other high iron-demanding crops, since its M-77 chelated system is built to perform continuously rather than as a one-time correction. Its acidic 378 lbs. CCE profile also makes it useful for offsetting alkaline irrigation water over repeated feedings.

Why does this formula use three chelated iron sources?

A formulation of three chelated irons, including Black Iron, is what the new M-77 chelated system relies on to hold iron available across a wide range of conditions. Petunias and other high iron-demanding plants benefit from that redundancy more than crops with lower iron needs.

What makes Black Iron specifically important here?

Black Iron is the strongest iron chelate used for growing ornamentals, making iron available to plants over the widest range of pH. That range is what lets this formula keep performing even as growing media pH shifts over a production cycle.

What plants is this formula labeled for?

It's labeled for use on petunias specifically, reflecting its M-77 chelated system's design around high iron-demanding plants. Other high-iron crops can benefit from the same chelation approach even though petunias are the named use.

What size and packaging is this listing?

It ships as a 25lb bag, supplied 80 per pallet, matching its acidic rating of 378 lbs. CCE. That volume suits commercial greenhouse petunia production.