Kelp Meal Fertilizer 2-0-4
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Organic Kelp Meal 2-0-4 Fertilizer
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. This slow-release seaweed extract stimulates root development, prevents temperature shock, and unlocks soil minerals while providing comprehensive micronutrients your plants crave for optimal health and productivity.
Last updated: August 2025 • Marine biologist reviewed
60+ Trace Minerals
100% Organic
Free Shipping $35+
Made in USA
What does 2-0-4 mean? It's the N-P-K ratio (Nitrogen-Phosphorus-Potassium). N = leafy growth, P = roots/flowers, K = vigor/disease tolerance. This ocean-sourced formula provides gentle nitrogen and potassium plus growth hormones.
Kelp Meal Benefits Timeline
Days 5–10
Root Stimulation
(auxin effect)
(auxin effect)
Week 2–3
Stress Protection
Month 1
Stronger Plants
4–6 Months
Full Release
Perfect For These Applications
Vegetables
1-2 lb per 100 sq ft
Stress Protection
Foliar spray weekly
Containers
1 tbsp per gallon
Transplanting
1/4 cup per plant
Coverage Guide by Package Size
| 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 |
Common Garden Problems? Kelp Meal Solutions
😟 Temperature shock?
✅ Natural stress protection compounds
😟 Weak root systems?
✅ Auxins stimulate root development
😟 Locked soil minerals?
✅ Chelates release bound nutrients
😟 Micronutrient deficiency?
✅ 60+ trace elements from the ocean
🌊 Ocean-Sourced Nutrition
Contains 60+ trace minerals and elements in naturally balanced proportions
🔬 Natural Growth Hormones
Auxins, cytokinins, and gibberellins promote healthy growth
🛡️ Stress Resistance
Betaines and other compounds protect against temperature extremes
Pairs Well With
Create a complete ocean-garden nutrition program
⚠️ Important Application Guidelines
- Work into soil thoroughly - nutrients release slowly over 4-6 months
- Can be used as kelp tea - steep 1/4 cup in 1 gallon water for 24-48 hours
- Apply before stress events (frost, heat waves, transplanting)
- Store in cool, dry place in sealed container
- Minimal odor - pleasant ocean scent
- Safe for all plants - won't burn when used as directed
- Excellent for seed starting and transplant shock prevention
Quick Application Guide
Select an application type above
KEY FEATURES & BENEFITS
- Balanced N-K (2-0-4, 0% P): Provides gentle nitrogen and potassium without phosphorus
- 60+ Trace Minerals: Complete micronutrient profile from ocean source
- Natural Growth Hormones: Contains auxins, cytokinins, and gibberellins
- Stress Protection: Betaines help plants resist temperature extremes
- 100% Organic: Pure Ascophyllum nodosum seaweed, sustainably harvested
- Slow Release: Provides nutrients over 4-6 months
- Chelating Action: Unlocks calcium, magnesium, and other bound minerals
- Disease Prevention: Natural compounds help prevent fungal growth
- Root Stimulation: Promotes robust root development and nutrient uptake
- Soil Enhancement: Improves structure and microbial activity
TRACE MINERALS & GROWTH FACTORS
Kelp meal contains over 60 trace elements and natural compounds essential for plant health:
🔬 Major Components
Nitrogen: 2%
Potassium: 4%
Calcium: 1-2%
Magnesium: 0.5-1%
Sulfur: 2-3%
Iron: 150-300 ppm
🌱 Natural Growth Hormones
- Auxins: Promote root development and cell elongation
- Cytokinins: Stimulate cell division and delay aging
- Gibberellins: Enhance stem elongation and flowering
- Betaines: Improve stress tolerance and water retention
⚡ Trace Elements Include
Boron, Copper, Manganese, Zinc, Cobalt, Molybdenum, Iodine, Selenium, and over 50 other trace minerals in naturally balanced proportions.
APPLICATION RATES & TIMING
Apply kelp meal at planting time and throughout the growing season. Work into soil or use as top dressing. Note: Provides slow-release nutrition for 4-6 months.
🌱 General Application Rates
| 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 1000 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 |
🌸 Specific Crop Guidelines
| 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 |
KELP MEAL CALCULATOR
Kelp Meal Application Calculator
Calculate exact amounts for your garden needs (Conversion: 4 cups/lb)
Vegetable Garden Calculator
📋 Standard rate: 1-2 pounds per 100 sq ft
Stress Protection Calculator
📋 Calculate kelp application for stress events
Transplant Calculator
📋 Standard rate: 1/4 cup per plant at transplanting
Container Garden Calculator
📋 Standard rate: 1 tablespoon per gallon of soil
Coverage by Area
📋 Calculate how much kelp meal you need for your space
Kelp Tea Calculator
📋 Standard rate: 1/4 cup per gallon water (steep 24-48 hours)
COMPARE WITH OTHER ORGANIC FERTILIZERS
| 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 |
QUICK REFERENCE GUIDE
📋 Application Quick Reference
General Garden:
1-2 lb per 100 sq ft
Once per season
1-2 lb per 100 sq ft
Once per season
Transplants:
1/4 cup per plant
At planting time
1/4 cup per plant
At planting time
Container Mix:
1 tbsp per gallon soil
Initial mixing
1 tbsp per gallon soil
Initial mixing
Kelp Tea:
1/4 cup in 1 gal water
Steep 24-48 hours
1/4 cup in 1 gal water
Steep 24-48 hours
≈4 cups per pound
FREQUENTLY ASKED QUESTIONS
What makes kelp meal special compared to other fertilizers?
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.
How does kelp meal help with temperature stress?
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 antifreeze compounds for cold protection and maintain water balance during heat stress. Many growers apply it 1-2 weeks before expected frost or heat waves.
Can I use kelp meal with other fertilizers?
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 reduce their NPK fertilizer rates by 25-30% when using kelp meal regularly, as it improves overall nutrient efficiency.
What's the best way to apply kelp meal?
For soil application, work it 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.
How long does kelp meal last in the soil?
Kelp meal is a slow-release fertilizer that provides nutrients for 4-6 months. Unlike quick-release synthetic fertilizers, it breaks down gradually, feeding plants consistently over time. This makes it ideal for seasonal applications - apply in spring for summer crops or in fall to prepare soil for the next growing season.
Is kelp meal safe for organic gardening?
Absolutely! Our kelp meal is 100% organic, made from sustainably harvested Ascophyllum nodosum seaweed. It's OMRI listed for organic use and contains no synthetic additives. The harvesting process allows the kelp to regenerate naturally, making it an environmentally sustainable choice for organic gardens.