Strawberry Fertilizer 8-12-32 | Chelated Micronutrients | Hydroponics, Soil & Foliar Application
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- $ 24.99
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- $ 24.99
- Regular Price
- $ 24.99
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Strawberry Fertilizer 8-12-32
Grow sweeter, larger, and more abundant berries with our premium water-soluble 8-12-32 formula. Scientifically balanced for strawberries, blueberries, raspberries, and all berry crops with EDTA-chelated micronutrients for soil, hydroponic, and foliar growing.
Ideal Applications
FEATURES
🍓 Optimized 8-12-32 Berry Ratio
Moderate nitrogen prevents excessive foliage while ultra-high potassium (32%) drives sugar transport for maximum berry sweetness, size, and Brix levels.
🛡️ EDTA-Chelated Micronutrients
Iron, manganese, zinc, and copper are protected by EDTA chelation, preventing nutrient lockout and ensuring optimal uptake even in challenging pH conditions from 4 to 9.
🌊 Instant Cold-Water Solubility
Dissolves completely in room-temperature water with zero residue. Ideal for drip irrigation, hydroponic towers, NFT systems, DWC, Dutch buckets, and foliar sprays without clogging.
🚫 Tested for Heavy Metals
Every batch independently tested by third-party laboratories with results consistently well below required limits. CDFA registered for professional and home grower confidence.
🌱 All Berry Crop Versatility
One formula for strawberries, blueberries, raspberries, blackberries, boysenberries, gooseberries, currants, elderberries, and all specialty berry crops.
📏 Increased Berry Size & Uniformity
High potassium improves cell expansion and water regulation for larger, more uniform berries with better market appeal and consumer satisfaction.
⚡ Enhanced Sugar Accumulation
The 32% potassium content drives sugar transport to developing fruit, raising Brix levels for noticeably sweeter, more flavorful berries throughout the harvest.
📦 Extended Shelf Life & Firmness
Proper potassium and calcium supplementation produces firmer berries that resist bruising, improving post-harvest quality and reducing losses during shipping.
🌸 Complete Bloom Support
Enhanced phosphorus (12%) ensures strong crown development, abundant flowering, and excellent fruit set across all growth stages from establishment through heavy fruiting.
🔬 Full Micronutrient Spectrum
Includes boron for proper pollination and fruit shape, plus molybdenum for nitrogen metabolism — a complete nutritional package beyond just NPK.
DERIVED FROM
Our formula is blended from premium-grade, solution-grade raw materials — each chosen for purity, solubility, and plant availability.
Macronutrient Sources
Monopotassium Phosphate (MKP) 0-52-34
Provides phosphorus and potassium in one compound. Drives flowering, root development, and fruit set.
Potassium Sulfate 0-0-53
Chloride-free potassium source preferred for berry crops. Also supplies sulfur for enzyme activation and flavor compounds.
Ammonium Sulfate 21-0-0
Provides ammonium nitrogen and sulfur. Slightly acidifying effect benefits berry crops that prefer lower pH.
Micronutrient Sources
Chelated Iron EDTA
EDTA-protected iron for chlorophyll synthesis and berry color development. Stays available even in alkaline conditions.
Chelated Manganese EDTA
EDTA-chelated manganese for disease resistance, photosynthesis support, and improved fruit uniformity.
Chelated Zinc EDTA
EDTA-protected zinc for auxin production, protein synthesis, and proper berry formation and seed development.
Chelated Copper EDTA
EDTA-chelated copper for lignin synthesis, cell wall strength, and enhanced berry firmness and disease resistance.
Boric Acid
Mineral-form boron critical for cell wall formation, calcium utilization, pollination, and preventing misshapen berries. Not chelated.
Sodium Molybdate
Mineral-form molybdenum essential for nitrogen fixation and nitrate reduction. Not chelated.
SCIENCE BEHIND THE FORMULA
8-12-32: Engineered for Sweet, Abundant Berries
Our formula addresses the unique nutritional demands of strawberries and berry crops throughout their growth cycle — moderate nitrogen to prevent excessive foliage, enhanced phosphorus for prolific flowering, and ultra-high potassium for maximum sweetness and fruit quality.
🌿 Nitrogen — 8% (Moderate Foliage)
Strawberries need sufficient nitrogen for healthy leaf growth and runner production, but excess nitrogen causes soft berries, reduced sugar content, delayed ripening, and excessive vegetation at the expense of fruiting. Our 8% level hits the sweet spot.
🌸 Phosphorus — 12% (Enhanced Flowering)
During crown development, flowering, and fruit set, strawberries have elevated phosphorus demands. The 12% level supports strong root systems, ATP energy transfer, abundant flower production, and improved berry development.
⭐ Potassium — 32% (Sweetness & Size)
Strawberries are heavy potassium feeders, especially during fruiting. This dominant 32% level drives sugar transport to developing fruit, regulates water movement for firm berries, activates 60+ enzyme systems, and enhances photosynthesis.
Essential Micronutrients
🧲 Iron (Fe) 0.10%
Chelated EDTA. Essential for chlorophyll synthesis and photosynthesis. Prevents interveinal yellowing and enhances deep red berry color development.
⚙️ Manganese (Mn) 0.05%
Chelated EDTA. Activates enzymes involved in photosynthesis and nitrogen metabolism. Critical for disease resistance, pollen viability, and berry uniformity.
🌱 Zinc (Zn) 0.05%
Chelated EDTA. Required for auxin production and protein synthesis. Essential for proper berry formation, seed development, and preventing small leaves.
🔗 Copper (Cu) 0.05%
Chelated EDTA. Involved in lignin synthesis for strong cell walls. Enhances disease resistance, enzyme function, and berry firmness.
🧱 Boron (B) 0.02%
Boric Acid (mineral form — not chelated). Critical for cell wall formation, calcium utilization, and pollination. Prevents misshapen berries and ensures proper flower development and fruit set.
🔬 Molybdenum (Mo) 0.0005%
Sodium Molybdate (mineral form — not chelated). Essential for nitrogen fixation and nitrate reduction. Though needed in tiny amounts, deficiency causes yellowing and poor overall growth.
Why High Potassium for Berries?
🍓 Sweeter Berries
Potassium drives sugar accumulation and transport to developing fruit, increasing Brix levels for sweeter, more flavorful strawberries.
📏 Larger Fruit
Improves cell expansion and water uptake for bigger, more uniform berries with better market appeal.
📦 Longer Shelf Life
Maintains berry firmness and reduces post-harvest deterioration, bruising, and shrinkage during storage and shipping.
🛡️ Disease Resistance
Strengthens plants against gray mold (Botrytis), powdery mildew, and root diseases through improved cell wall integrity.
🎨 Vibrant Color
Enhances anthocyanin production for deep red color development throughout the berry, improving visual quality.
🌡️ Stress Tolerance
Helps plants cope with temperature extremes, drought stress, and environmental fluctuations during critical fruiting periods.
APPLICATION RATES & DIRECTIONS
Below are recommended rates for strawberries and other berry crops. Start at the lower end and increase based on plant response.
Soil Application
| Application Method | Rate | Frequency | Notes |
|---|---|---|---|
| Per Plant | 2-3g (⅓-½ tsp) | Every 2-3 weeks | Apply around crown |
| Per 100 sq ft | 0.5-1 lb | Every 2-3 weeks | Broadcast evenly |
| Per Acre | 100-150 lbs | Every 2-3 weeks | Through irrigation |
Foliar Application
| Growth Stage | Rate | Frequency | Coverage |
|---|---|---|---|
| Vegetative | 50-75g/gallon | Weekly | Spray to runoff |
| Flowering/Fruiting | 75-100g/gallon | Every 5-7 days | Early morning best |
Hydroponic Application (per 100 gallons)
| Growth Stage | 8-12-32 Amount | Cal-Mag Plus | pH Range | EC/PPM |
|---|---|---|---|---|
| Establishment | 0.25 lbs | 250-500 ml | 6.0-6.5 | 800-1000 PPM |
| Vegetative Growth | 0.5 lbs | 500-1000 ml | 5.8-6.2 | 1200-1400 PPM |
| Flowering/Fruiting | 0.75 lbs | 1000-1500 ml | 5.5-6.0 | 1400-1800 PPM |
Plant Density Note
Our hydroponic calculations assume approximately 60 plants per 100 gallons of reservoir capacity. For example: 10-gallon system ≈ 6 plants, 25-gallon system ≈ 15 plants, 50-gallon system ≈ 30 plants, 100-gallon system ≈ 60 plants. Adjust based on variety and growing system — vertical towers can support higher densities.
HOW TO USE
Soil & Container Growing
- Dissolve 2-3g (⅓-½ tsp) per plant in water before application.
- Apply around the crown of each plant, avoiding direct stem contact.
- Water thoroughly after application to move nutrients into the root zone.
- Repeat every 2-3 weeks throughout the growing season.
- Increase frequency during heavy fruiting if plants show signs of deficiency.
Hydroponic Systems
- Fill reservoir with clean water to desired volume.
- Add Cal-Mag Plus first and stir until fully dissolved.
- Add Strawberry Fertilizer 8-12-32 at the rate for your growth stage (see Application Rates table).
- Stir thoroughly and check pH — adjust to 5.5-6.5 as needed.
- Check EC/PPM and adjust if outside the recommended range.
- Monitor reservoir daily and top off with pH-adjusted water.
- Change reservoir completely every 1-2 weeks.
Foliar Spray
- Dissolve 50-100g per gallon of water depending on growth stage.
- Apply in early morning or late afternoon to avoid leaf burn.
- Spray until leaves are wet but not dripping.
- Avoid spraying during flowering to prevent damage to open blossoms.
- Repeat weekly during vegetative growth or every 5-7 days during fruiting.
Optimal Feeding Through Growth Stages
Establishment (Week 0-4): Quarter strength weekly + Cal-Mag 2.5ml/gal
Vegetative (Week 4-8): Half strength weekly + Cal-Mag 5-10ml/gal
Flowering (Week 8-10): Full strength weekly + Cal-Mag 10-15ml/gal
Fruiting (Week 10+): Full strength weekly + Cal-Mag 15ml/gal
Pro Tip: Maximizing Brix Levels Before Harvest
To get the sweetest berries possible, reduce watering slightly as fruit begins to color (but don't let plants wilt). This concentrates sugars in the developing fruit. Maintain full-strength potassium feeding through harvest, and pick berries in the morning when sugar content peaks. Cool nights before harvest also enhance sugar accumulation.
When Strawberry Fertilizer 8-12-32 Is the Right Choice
- Growing any berry crop — strawberries, blueberries, raspberries, blackberries, boysenberries, gooseberries, currants
- Fruiting stage when potassium and sugar demands peak
- Hydroponic berry towers and systems requiring 100% water-soluble nutrients
- When berry sweetness, firmness, and shelf life are top priorities
When to Consider Other Options
- Growing tomatoes or peppers — try Tomato Fertilizer 4-18-38 for nightshade-optimized ratios with higher potassium
- Growing cucumbers or melons — try Cucumber Fertilizer 8-16-36 for vine crop ratios
- Growing leafy greens — try Lettuce Fertilizer 8-15-36 for foliage-focused nutrition
- Early establishment only — consider a balanced formula like Grow Green 4-2-6 until flowering begins
STRAWBERRY FERTILIZER CALCULATOR
SAFETY & HANDLING
Personal Protective Equipment (PPE)
- Wear gloves and eye protection when handling dry powder or concentrated solutions
- Avoid inhaling dust — use in well-ventilated areas or wear a dust mask when measuring
- Wash hands thoroughly after handling
Storage Guidelines
- Store in a cool, dry place in the original sealed container
- Product is hygroscopic — it will absorb moisture from the air if exposed, causing clumping
- If product clumps, simply break it up — efficacy is not affected
- Keep out of direct sunlight and away from heat sources
- Keep away from children and pets
Application Precautions
- Do not mix dry fertilizer with other products before dissolving in water
- Always add Cal-Mag Plus to reservoir first, then add this fertilizer separately
- Avoid direct contact with plant stems and foliage when applying to soil
- Water thoroughly after soil application to prevent root burn
- Do not foliar spray during peak sun hours or when temperatures exceed 85°F
First Aid
- Eye contact: Flush with clean water for 15 minutes. Seek medical attention if irritation persists
- Skin contact: Wash affected area with soap and water
- Ingestion: Do not induce vomiting. Contact Poison Control (1-800-222-1222) or seek medical attention
- Inhalation: Move to fresh air. Seek medical attention if symptoms persist
Refer to the Safety Data Sheet (SDS) for complete safety information.
COMPLETE YOUR SYSTEM
Build a complete berry feeding program by pairing 8-12-32 with these essential companions.
Cal-Mag Plus 2-0-0
Prevents soft berries and tip burn. Critical for fruit firmness, cell wall strength, and shelf life. Required for hydroponic systems.
BoostPotassium Sulfate 0-0-53
Extra potassium boost during heavy fruiting for maximum sweetness, berry size, and sugar accumulation.
SupplementEpsom Salt (Magnesium Sulfate)
Magnesium for chlorophyll production. Enhances green leaf color, photosynthesis, and overall plant vigor.
FREQUENTLY ASKED QUESTIONS
How do I make my strawberries sweeter?
Our high-potassium formula is the foundation for sweeter berries. The 32% potassium content directly increases sugar transport to developing fruit, raising Brix levels. Beyond nutrition, ensure 6-8 hours of direct sunlight, reduce watering slightly as berries ripen, and harvest fully ripe berries in the morning. Cool nights also enhance sugar accumulation. For a deeper understanding, see our article on What's the Function of Potassium (K) in Plants? For a complete nutrition guide, see What is the Best Fertilizer for Strawberries?
What pH should I maintain for strawberries?
Strawberries prefer slightly acidic conditions. For soil growing, maintain pH 5.5-6.5. For hydroponics, adjust pH by growth stage: establishment at 6.0-6.5, vegetative growth at 5.8-6.2, and flowering/fruiting at 5.5-6.0. Always check pH after mixing nutrients, as fertilizer addition will change the solution pH.
Can I use this for hydroponic strawberry towers?
Absolutely. Our formula dissolves completely and works perfectly in vertical hydroponic towers, NFT systems, DWC, and Dutch buckets. Use the flowering/fruiting rate of 0.75 lbs per 100 gallons, maintain EC at 1.4-1.8 (980-1260 PPM), keep pH at 5.5-6.0, and always add Cal-Mag Plus at 15ml/gal. Check EC daily since towers evaporate faster, and ensure even flow to all levels.
What's the best feeding schedule for everbearing strawberries?
Everbearing varieties need consistent nutrition for continuous production: start at half strength weekly during spring establishment, increase to full strength for the first crop, reduce to half strength between crops, return to full strength for the second crop, and taper to biweekly in fall. Never skip feeding during active fruiting, and increase Cal-Mag Plus during peak production.
Why doesn't this formula contain calcium?
Calcium and phosphorus are chemically incompatible in the same solution — when mixed, they form insoluble calcium phosphate that precipitates out and becomes unavailable to plants. That's why any high-phosphorus fertilizer must be supplemented with a separate calcium source. For more on why calcium matters, see our article on Why Calcium is Crucial for Plant Growth.
Recommended calcium sources:
- Cal-Mag Plus 2-0-0 — best for hydroponic systems and container growing
- Calcium Nitrate 15.5-0-0 — water-soluble option with a small nitrogen boost
- Gypsum (Calcium Sulfate) — excellent calcium source that won't alter soil pH
- Bone Meal 3-15-0 — slow-release organic calcium and phosphorus for soil gardens
How do I store the powder to prevent clumping?
Our fertilizer is hygroscopic — it absorbs moisture from the air. Keep the bag sealed tight between uses and store in a cool, dry place out of direct sunlight. If the powder clumps, simply break it up. Clumping does not affect the product's efficacy or nutrient content.
What other berry crops can I use this on?
This formula works for all berry crops including blueberries, raspberries, blackberries, boysenberries, loganberries, elderberries, gooseberries, currants, huckleberries, and mulberries. The high-potassium ratio benefits any fruit crop where sweetness, size, and shelf life are priorities. For more on how potassium and manganese work together in sugar-rich crops, see our article on Why High-Carb Crops Demand Plenty of Potassium.
GROW WITH CONFIDENCE
Important details on quality, returns, sustainability, and charitable efforts that set our product apart.
Product Quality Guaranteed
- Manufactured in Madera, California, USA
- Tested by independent third-party laboratories for purity and guaranteed analysis
- Registered with the California Department of Food and Agriculture (CDFA)
- Independently tested for heavy metal content
- Solution-grade raw materials selected for maximum solubility and plant availability
Hassle-Free Return Policy
If you're not completely satisfied, 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.
Environmental Responsibility
We're committed to sustainable practices, including:
- Recyclable packaging materials
- Precise nutrient formulation to reduce environmental runoff
- Support for integrated pest management (IPM) practices
- Promoting water-efficient growing methods including hydroponics
Charitable Contributions
1% of all profits go to our foundation, focused on improving educational opportunities for children in agricultural communities.
DOCUMENTS
DISCOVER MORE
- What is the Best Fertilizer for Strawberries? — Complete guide to strawberry nutrition, timing, and fertilizer selection
- What's the Function of Potassium (K) in Plants? — Why potassium is the key to sweeter, larger fruit
- What's the Function of Nitrogen (N) in Plants? — Understanding nitrogen's role in healthy foliage
- What's the Function of Phosphorus (P) in Plants? — How phosphorus drives flowering and root development
- What is the Best Potassium Fertilizer? — Comparing potassium sources for different crops and systems
- Essential Micronutrients for Healthier Plants — Why micronutrients matter and how to identify deficiencies
- Growing Hydroponic Tomatoes — Nutrient management guide applicable to hydroponic berries
- How Do Soil Microbes Affect Plant Health? — Why healthy soil biology improves nutrient uptake for berry crops
HAVE QUESTIONS?
Check out our full FAQ page or contact our experts for personalized advice.
