Grow More Seaweed Extract

Grow More Seaweed Extract is an all-natural, organic, non-toxic foliar supplement derived from seaweed. It supplies naturally chelated trace elements — including boron, molybdenum, copper, zinc, manganese, iron, and cobalt — through harvest without leaving residue on crops. Safe for use at any point during the growing season.

Grow More Seaweed Extract Specifications

Key product data drawn from manufacturer documentation and the canonical product record (SKU GR26057).

Specification	Value
Brand	Grow More
SKU	GR26057
Product Type	Seaweed Extract — foliar and soil supplement
Formulation	All-natural, organic, non-toxic concentrate
Chelating Agents	Alginic acid and mannitol
Trace Elements	Boron, molybdenum, copper, zinc, manganese, iron, cobalt
Foliar Dose Rate	1 tsp (5 g) per gallon; or 11 oz (310 g) per 50–100 gal per acre
Package Weight	22.02 lb (10.0 kg)

Why Choose Grow More Seaweed Extract

Seaweed extracts occupy a specific niche in plant nutrition: they supply micronutrients and natural growth factors that synthetic fertilizers often omit. Here is what distinguishes this product based on its formulation and labeled characteristics.

• Naturally chelated micronutrients. The trace elements in this product — boron, molybdenum, copper, zinc, manganese, iron, and cobalt — are chelated by alginic acid and mannitol. Natural chelation keeps micronutrients soluble and plant-available across a wider pH range than synthetic chelates like EDTA, which can degrade at pH above 6.5.
• No crop residue. The formulation is explicitly described as leaving no residue on crops, which matters for growers producing edible crops or operating near harvest windows where residue restrictions apply.
• Flexible application window. The product may be applied at any point during the growing season through harvest. Many foliar supplements restrict application timing to vegetative or early flowering stages; this product carries no such limitation.
• Organic and non-toxic classification. The all-natural, organic, non-toxic designation makes it compatible with organic production programs and reduces handling concerns during application.
• Concentrated format. At 1 teaspoon (5 grams) per gallon for foliar use, the 22-lb package provides a high number of applications per unit, which reduces per-application cost in large-scale operations.

Best Uses for Grow More Seaweed Extract

This product fits a range of growing environments and crop types. The following use cases are derived from the product’s formulation, labeled application rates, and its classification under Nutrients & Additives — Growth & Bloom Boosters.

• Foliar micronutrient supplementation. When soil or media tests indicate trace element deficiencies (zinc, iron, manganese, etc.), a foliar application delivers micronutrients directly through the leaf surface, bypassing soil pH lockout that commonly inhibits uptake of these elements.
• Pre-harvest applications. Because the product leaves no residue on crops, it can be applied close to harvest, a window where most conventional foliar fertilizers are restricted.
• Organic and transitional production programs. The non-toxic, all-natural formulation fits certified organic and transitional operations where synthetic chelated micronutrient products are not permitted.
• Large-scale field or greenhouse application. The labeled rate of 11 oz per 50–100 gallons per acre (per 4,050 sq. meters) and the bulk 22-lb package are sized for commercial field, greenhouse, and high-density indoor operations rather than small hobbyist use.
• Supplemental use alongside base nutrient programs. Seaweed extract is not a complete fertilizer. It works best as a supplement added on top of an established base nutrient schedule to address trace element gaps or support growth during key development stages. Products like Advanced Nutrients Tarantula or Earth Juice Hi-Brix Molasses serve similar supplemental roles in organic and biological programs.

Grow More Seaweed Extract vs Similar Products

Seaweed-based foliar supplements share a general mode of action — supplying naturally occurring trace elements and biostimulant compounds — but differ in concentration, chelation chemistry, and intended application method.

Many seaweed extract products on the market are formulated as liquid concentrates intended for small-volume dilution (e.g., 1–2 mL per liter). Grow More Seaweed Extract, by contrast, is offered in a dry or semi-solid concentrate at 22 lb per unit with a dose rate of 5 grams per gallon. This format is more practical for commercial-scale operations where mixing large batches of foliar spray is routine, since dry or granular concentrates are easier to weigh in bulk than liquid concentrates measured in milliliters.

The specific chelation system — alginic acid and mannitol from seaweed — provides naturally derived chelation. Competing products that use synthetic chelating agents (EDTA, DTPA) may perform differently depending on soil or irrigation water pH. Growers running higher-pH systems (pH 6.5 and above) often find that natural chelates maintain solubility more consistently than EDTA-chelated products.

If your program requires root-zone biological support in addition to foliar trace elements, consider combining this product with a dedicated root inoculant such as Heavy 16 Roots, which addresses root architecture through a different mechanism than foliar seaweed supplementation.

Compatibility

Grow More Seaweed Extract is formulated for foliar application across a broad range of crop types and growing systems. The following compatibility notes are derived from the product’s labeled characteristics.

• Growing systems: Compatible with soil, soilless media (coco coir, perlite, rockwool), and hydroponic reservoir systems. Because the product is applied as a foliar spray rather than a root-zone drench, it does not interact directly with hydroponic nutrient solutions or system infrastructure.
• Crop types: Described for use on any crop throughout the growing season. No specific crop restrictions are listed on the product record.
• Sticker/spreader compatibility: The product documentation specifically recommends pairing with a biodegradable sticker/spreader such as Grow More spray enhancer to improve dispersal and adherence of the foliar spray. Use of a compatible spreader is particularly important on waxy or hairy leaf surfaces.
• Mixing with other foliar products: No incompatibilities are listed in the product record. As with any foliar combination, a small jar test is advisable before large-batch mixing with other concentrates to check for precipitation or pH shift.
• Application timing restrictions: Do not apply in direct heat or wind. Early morning and late evening are the recommended application windows. These are standard foliar application guidelines that apply regardless of the specific product being used.

Dosing Guidelines

All rates below are taken directly from the product’s labeled application instructions.

Foliar spray — small batch: Use 1 teaspoon (5 grams) of Seaweed Extract per gallon of water. Apply as a fine misting spray to thoroughly wet foliage.

Foliar spray — field rate: Use 11 oz (310 grams) per 50 to 100 gallons (189–380 liters) of water per acre (4,050 sq. meters). Adjust the dilution within this range based on crop stage and leaf coverage needed.

Application frequency: Best results are achieved by making more frequent applications every 2 to 3 weeks rather than increasing the concentration of the spray solution. Do not attempt to compensate for missed applications by doubling the dose rate.

Application conditions: Do not apply in the heat of the day or in windy conditions. Early morning or late evening applications minimize leaf burn risk and evaporation loss before the product can be absorbed.

Spreader use: Adding a biodegradable sticker/spreader such as Grow More spray enhancer to the spray tank improves dispersal and adherence, particularly on crops with waxy or textured foliage. Follow the spreader manufacturer’s recommended dose rate when adding to the tank mix.

How to Apply Grow More Seaweed Extract

1. Measure the dose. Weigh or measure the appropriate amount of Seaweed Extract for your batch size: 5 grams (1 tsp) per gallon for small batches, or 310 grams (11 oz) per 50–100 gallons for field-rate applications.
2. Pre-dissolve in water. Add the measured extract to a small volume of clean water and stir until fully dissolved before adding to the main spray tank. This prevents clumping or uneven mixing in the tank.
3. Fill the spray tank. Add the dissolved concentrate to the spray tank and top up with clean water to the target volume. If using a sticker/spreader, add it at this stage following the spreader’s recommended rate.
4. Check the solution. Verify that the mixture is fully dissolved and uniform. If precipitation or cloudiness occurs when mixing with other products, do not use the combination until the cause is identified.
5. Choose application timing. Schedule the application for early morning or late evening to avoid heat stress and wind drift. Do not apply when daytime temperatures are at peak or when wind exceeds conditions suitable for fine-mist spraying.
6. Apply as a fine mist. Spray to thoroughly wet all foliage surfaces. Adjust the sprayer nozzle to produce a fine mist rather than coarse droplets, which improves surface coverage and absorption.
7. Record and repeat. Note the application date. Repeat every 2 to 3 weeks as part of a consistent supplemental program. Monitor plants for response to trace element supply and adjust the program as needed.

Sources & Further Reading