Maxicrop 1gal Plus Iron 2%

What it is

Maxicrop Liquid Seaweed Plus Iron is the iron-fortified member of Maxicrop’s liquid seaweed line. The base is a seaweed extract derived from fresh Norwegian kelp (Ascophyllum nodosum) harvested off the Norwegian coastline, to which iron is added so a single bottle can both feed and address iron supply. The maker states the product is ready to dilute in water and carries a 0-0-1 guaranteed analysis. A carrying retailer’s label breakdown lists the guaranteed analysis as 1.0% soluble potash (K₂O) plus 2.0% iron (Fe). According to the maker’s safety data sheet, the producer is Maxicrop USA, Inc., and the recommended uses are horticultural foliar nutrient and iron maintenance.

Guaranteed analysis and specifications

The 0-0-1 header is the maker’s published figure; the per-nutrient percentages (1.0% soluble potash and 2.0% iron) are as reproduced on a carrying retailer’s label breakdown for the model-2002 gallon.

Why choose it

• Seaweed plus iron in one bottle. Rather than running a separate iron supplement, you get the Norwegian Ascophyllum nodosum seaweed extract and 2.0% iron in a single concentrate.
• Built for acid-loving plants. The maker recommends it as a foliar feed for a variety of acid-loving plants, indoor and outdoor, and the listing describes it as helping prevent leaf yellowing (chlorosis) in acid-low (calcifuge) plants.
• Works in hydroponic systems. The maker explicitly lists use in hydroponic systems among its applications, so it can supplement a base nutrient program with seaweed and iron.
• Iron maintenance role. The maker’s safety data sheet names foliar nutrient and iron maintenance as the recommended uses.

Best uses

• Foliar feeding acid-loving ornamentals. The maker lists foliar feeding indoors and outdoors on acid-loving plants as a primary use.
• Seed, bulb, cutting and transplant prep. The maker calls it excellent for soaking seeds and bulbs, and treating seedlings, cuttings, and bare root trees and shrubs before and after transplant.
• Hydroponic reservoir supplement. The maker’s rates cover adding it to a tank in a recirculating system.

Application (maker directions)

Follow the maker’s published Maxicrop liquid rates for the use and stage:

• Seedlings, trees, bushes and shrubs: water with 1 ounce per gallon of water every week.
• Foliar feed (liquid): use 1 ounce (2 tablespoons for the liquid) per gallon of water once per week.
• Seed and bulb soak / cuttings: soak overnight in a solution of 1 ounce per gallon of water, then water in with the same solution.
• Aquaponic / hydroponic systems: use 2 ounces per 100 gallons of water in the tank once per week for new systems, or every 10-14 days for a balanced system.

Always dilute the concentrate before applying, and adjust to the plant and program as with any seaweed supplement.

How it compares

Against the plain Maxicrop liquid seaweed, which shares the 0-0-1 analysis but no added iron, the Plus Iron version is the choice when the target plants are iron-sensitive acid-lovers; the plain seaweed is enough when a separate iron source is already in the program.

Where it fits

For other supplements and boosters, browse the growth & bloom boosters category. Related additives and supplements include:

• Maxicrop Soluble Seaweed Powder — the water-soluble powder form of Maxicrop’s Norwegian seaweed.
• PureCrop1 — a plant-based biostimulant and wetting agent.
• Earth Juice Hi-Brix Molasses for Plants — a carbohydrate supplement for feeding programs.
• Athena Cal-Mag — a calcium and magnesium supplement.
• General Organics CaMg+ Calcium Magnesium Supplement — an organic-leaning cal-mag option.
• Flying Skull Z7 Enzyme Cleanser — a root-zone enzyme cleanser for reservoirs and media.