Harness the power of the ocean with our premium organic kelp meal fertilizer, a natural source of growth hormones, 60+ trace minerals, and stress-fighting compounds that stimulate root development, protect against temperature shock, and unlock bound soil minerals.
Delivers over 60 naturally balanced trace elements from Ascophyllum nodosum seaweed, providing a complete micronutrient profile that synthetic fertilizers cannot replicate.
Contains auxins, cytokinins, and gibberellins that promote root development, stimulate cell division, and enhance flowering without synthetic plant growth regulators.
Betaines and other stress-response compounds help plants maintain cellular function during frost, heat waves, and drought by improving water retention and membrane stability.
Breaks down gradually in soil to provide steady, consistent feeding over an entire growing season with a single application, reducing the need for frequent reapplication.
Alginic acids and other organic compounds unlock calcium, magnesium, iron, and other minerals already bound in your soil, making them available to plant roots.
Naturally occurring auxins promote robust root growth, improved nutrient uptake, and stronger transplant establishment, making it ideal for seed starting and transplanting.
Feeds beneficial soil microorganisms with carbohydrates and amino acids, improving soil structure, nutrient cycling, and overall soil health over time.
Provides gentle nitrogen for foliage and potassium for plant vigor with zero phosphorus, making it easy to pair with phosphorus sources without risk of overloading.
Made from pure Ascophyllum nodosum seaweed with no synthetic additives, fillers, or chemical processing — a natural input suitable for organic gardening programs.
Use as a soil amendment, top dressing, potting mix additive, or steep into kelp tea for foliar feeding and liquid soil drench applications across all garden types.
Our kelp meal is derived from a single, premium-grade source prized for its exceptionally high concentration of natural growth hormones, trace minerals, and stress-fighting compounds.
This gentle, balanced formula provides nitrogen for leafy growth and potassium for plant vigor. The real power lies in the 60+ trace minerals, natural growth hormones, and stress-fighting compounds that synthetic fertilizers cannot replicate. Best performance when soil temperatures are above 55°F and kept evenly moist.
A low, slow-release nitrogen level that promotes healthy leaf growth and chlorophyll production without the risk of nitrogen burn. Ideal for steady, balanced feeding rather than rapid vegetative flush.
Kelp meal naturally contains no significant phosphorus. Pair with Bone Meal 3-15-0 or Fish Bone Meal 4-17-0 when root development and flowering support are needed.
Potassium enhances disease resistance, drought tolerance, and overall plant vigor. At 4%, kelp meal provides meaningful potassium alongside its trace mineral and growth hormone benefits.
Promote root cell elongation and lateral root formation. Responsible for kelp meal's ability to stimulate robust root systems during transplanting and seed starting.
Stimulate cell division and delay leaf aging. Help plants maintain active growth longer and promote lateral bud development for bushier, more productive plants.
Enhance stem elongation, flowering initiation, and fruit set. Work synergistically with auxins and cytokinins for balanced, healthy plant development.
Improve osmotic regulation and membrane stability during temperature extremes. The primary compounds responsible for kelp meal's frost and heat protection properties.
Supports cell wall structure and root tip development. Works with kelp's chelating action to improve calcium availability in acidic or alkaline soils.
Central atom in chlorophyll molecules, essential for photosynthesis. Activates enzyme systems involved in energy transfer and protein synthesis.
Essential for amino acid and protein formation. Contributes to disease resistance and gives brassicas and alliums their characteristic flavors.
Critical for chlorophyll synthesis and energy transfer. Kelp's organic acids help keep iron available across a range of soil pH conditions.
Additional trace elements include: Boron, Copper, Manganese, Zinc, Cobalt, Molybdenum, Iodine, Selenium, and over 50 other minerals in naturally balanced proportions from the ocean.
Potassium regulates stomatal opening and closing, helping plants conserve water during dry periods and maintain turgor pressure under heat stress.
Adequate potassium strengthens cell walls and activates plant defense enzymes, reducing susceptibility to fungal diseases, bacterial infections, and pest damage.
Potassium drives sugar and starch production, improving fruit sweetness, color development, and shelf life while supporting larger, more vibrant blooms.
Results vary with soil temperature, moisture, and microbial activity. Best performance when soil temperatures are above 55°F.
Apply kelp meal at planting time and throughout the growing season. Work into soil or use as top dressing. Provides slow-release nutrition for 4-6 months per application.
| Application Type | Rate | Frequency |
|---|---|---|
| Vegetable Gardens | 1-2 lb per 100 sq ft | Once per season |
| Flower Beds | 1 lb per 100 sq ft | Spring application |
| Lawns | 10 lb per 1,000 sq ft | Spring and fall |
| Trees & Shrubs | 1/2-1 cup per plant | Spring and fall |
| Potted Plants | 1 tbsp per gallon soil | Initial mix |
| Kelp Tea (liquid) | 1/4 cup per gallon water | Every 2-4 weeks |
| Crop | Application Rate | Special Notes |
|---|---|---|
| Tomatoes | 1/4 cup per plant | At transplant & flowering |
| Peppers | 1/4 cup per plant | Prevents blossom drop |
| Lettuce & Greens | 1 lb per 100 sq ft | Before planting |
| Root Vegetables | 1.5 lb per 100 sq ft | Improves root development |
| Roses | 1/2 cup per bush | Monthly during season |
| Fruit Trees | 2 cups per tree | Spring application |
| Package Size | Light (1 lb/100 sq ft) | Standard (1.5 lb/100 sq ft) | Heavy (2 lb/100 sq ft) |
|---|---|---|---|
| 1 lb bag | 100 sq ft | 67 sq ft | 50 sq ft |
| 2 lb bag | 200 sq ft | 133 sq ft | 100 sq ft |
| 5 lb bag | 500 sq ft | 333 sq ft | 250 sq ft |
| 10 lb bag | 1,000 sq ft | 667 sq ft | 500 sq ft |
| 25 lb bag | 2,500 sq ft | 1,667 sq ft | 1,250 sq ft |
| 50 lb bag | 5,000 sq ft | 3,333 sq ft | 2,500 sq ft |
For the best results against frost, heat waves, or transplant shock, apply kelp meal 1-2 weeks before the anticipated stress event at 1/4 cup per plant. This gives the betaines and stress-response compounds time to build up in plant tissues before conditions become challenging. Many growers apply a fall dose (2 lb per 100 sq ft) in early October to harden plants before winter.
| Feature | Kelp Meal 2-0-4 | Alfalfa Meal | Blood Meal | Bone Meal | Compost |
|---|---|---|---|---|---|
| Nitrogen | 2% | 2.5% | 13% | 3% | 1-2% |
| Phosphorus | 0% | 0% | 1% | 15% | 0.5-1% |
| Potassium | 4% | 2.5% | 0% | 0% | 0.5-1% |
| Trace Minerals | 60+ elements | Some | Few | Few | Variable |
| Growth Hormones | Yes (Multiple) | Yes (Triacontanol) | No | No | No |
| Release Speed | Slow (4-6 months) | Fast (2-4 weeks) | Medium (6-8 weeks) | Slow (3-4 months) | Slow |
| Stress Protection | Excellent | Good | None | None | Minimal |
Refer to the Safety Data Sheet (SDS) for complete safety information.
Create a complete ocean-garden nutrition program with these complementary products:
Growth hormone boost with triacontanol for enhanced plant vigor. Pairs perfectly with kelp meal for a complete organic amendment program.
Adds the phosphorus kelp meal lacks. Essential for root development, flowering, and fruit set in organic gardens.
Fast-release nitrogen for heavy feeders like corn, tomatoes, and leafy greens when kelp meal's gentle 2% N isn't enough.
Extra potassium for fruit quality, disease resistance, and drought tolerance when crops need more K than kelp provides.
Targeted iron supplementation that works across pH ranges for rapid green-up of chlorotic plants.
Improves soil structure and adds calcium without changing pH. Excellent companion for kelp meal in clay soils.
Kelp meal is unique because it contains natural growth hormones (auxins, cytokinins, gibberellins), over 60 trace minerals, and stress-fighting compounds not found in conventional fertilizers. It not only feeds plants but also enhances their natural defense systems, improves stress tolerance, and stimulates beneficial soil microbes. The slow-release nature provides nutrition for 4-6 months. For more on how organic amendments improve soil biology, see our article on The 5 Fertilizers That Will Also Encourage Soil Health.
Kelp contains natural compounds called betaines and other stress-response factors that help plants maintain cellular function during temperature extremes. When applied before stress events, it helps plants produce their own protective compounds for cold conditions and maintain water balance during heat stress. Many growers apply kelp meal 1-2 weeks before expected frost or heat waves for maximum protection.
Yes, kelp meal is an excellent complement to other fertilizers. It enhances nutrient uptake and utilization, making your other fertilizers more effective. The chelating properties help release bound nutrients in soil. Many growers find they can reduce their NPK fertilizer needs when using kelp meal regularly, as it improves overall nutrient efficiency.
For soil application, work kelp meal into the top 3-4 inches for best results. For established plants, side-dress around the drip line. Kelp tea (liquid extract) is excellent for foliar feeding or quick nutrient delivery. Apply before transplanting to reduce shock, before flowering to enhance blooms, and before stress events for protection. Morning or evening applications are most effective for foliar sprays.
Kelp meal is a slow-release amendment that typically provides nutrients for 4-6 months. Unlike quick-release synthetic fertilizers, it breaks down gradually, feeding plants consistently over time. This makes it well-suited for seasonal applications — apply in spring for summer crops or in fall to prepare soil for the next growing season.
Our kelp meal is 100% organic, made from sustainably harvested Ascophyllum nodosum seaweed. It contains no synthetic additives, fillers, or chemical processing, making it suitable for organic gardening programs. The harvesting process allows the kelp to regenerate naturally, making it an environmentally sustainable choice.
Potassium is essential for water regulation, disease resistance, and fruit quality. It controls stomatal opening (how plants breathe and manage water), strengthens cell walls against pathogens, and drives sugar transport for sweeter fruit and more vibrant flowers. Learn more in our detailed guide: What's the Function of Potassium (K) in Plants?
Trace minerals like iron, manganese, zinc, boron, and copper are essential for enzyme activation, chlorophyll production, and disease resistance. Most soils are deficient in one or more trace elements, which limits plant health even when NPK levels are adequate. Kelp meal's 60+ ocean-sourced elements address these hidden deficiencies. For an in-depth look, read our article on The Role of Trace Minerals in Organic Gardening.
Kelp meal has a minimal effect on soil pH. It's naturally close to neutral and generally safe to use in most garden soils without pH adjustment concerns. Consistent long-term use may have a very slight acidifying effect as organic matter breaks down, but this is typically beneficial and easy to monitor with an inexpensive soil pH test.
Kelp meal has a mild, natural ocean scent — noticeably different from and much milder than other organic amendments like blood meal, fish meal, or composted manure. The scent dissipates quickly once kelp meal is worked into the soil and watered in. Many gardeners find it pleasant compared to other organic fertilizers.
Surface mold or white fungal growth is occasionally seen when kelp meal is left sitting on moist soil without being incorporated. This is harmless microbial activity — a sign that beneficial decomposers are breaking the product down. To avoid it, work kelp meal into the top few inches of soil and water it in after application rather than leaving it as a dry surface layer.
When applied as directed and worked into the soil, kelp meal is generally safe in gardens frequented by pets. However, discourage pets from eating kelp meal directly in large quantities, as any concentrated organic material can cause digestive upset. Water the product into the soil after application so it is no longer accessible on the surface.
If you're not completely satisfied with your kelp meal purchase, we offer a 90-day money-back guarantee. Simply return the unused portion in its original packaging, and we'll process a full refund. No questions asked.
We are committed to sustainable practices, including:
1% of all profits go to our foundation, focused on improving educational opportunities for children in agricultural communities.
Check out our full FAQ page or contact our experts for personalized advice.
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