Chelated Copper EDTA Fertilizer - 14% Cu
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Chelated Copper EDTA Fertilizer
Premium chelated copper with 14% Cu-EDTA for superior bioavailability. This professional-grade micronutrient prevents and corrects copper deficiencies that cause chlorosis, weak stems, and reduced yields. EDTA chelation ensures stability across pH 4-9, providing 3-5x better absorption than copper sulfate.
✓Made in USA
🏆Since 1989
📦Free Shipping $35+
♻️Eco-Friendly
Deficiency Correction Timeline
Day 1-3💧Apply & Absorb
Week 1🌱New Growth
Week 2-3🌿Green Returns
Week 4+💪Full Recovery
Perfect For These Applications
Field Crops
2-4 lbs/acre
Foliar Spray
0.33-2 lbs/acre
Trees & Vines
0.5-2 oz/inch
Hydroponics
0.05-0.20 ppm
Common Copper Deficiency Problems? We've Got Solutions
😟 Young leaves turning yellow?
✅ 14% chelated copper restores green color fast
😟 Twisted or malformed growth?
✅ Essential for proper enzyme function and growth
😟 Weak stems and poor lignification?
✅ Copper strengthens cell walls and stem structure
😟 High pH soil locking nutrients?
✅ EDTA chelation works across pH 4-9
🛡️ 14% Chelated Copper
High concentration means lower application rates and more efficient correction of deficiencies
⚡ EDTA Chelation
Superior stability across pH 4-9, preventing precipitation and ensuring availability
💧 100% Soluble
Completely dissolves for soil, foliar, fertigation, and hydroponic applications
🔍 Copper Deficiency Signs
🍃
Chlorosis
Young leaves turn pale green to yellow
🌀
Twisted Growth
New leaves curl and distort
☠️
Tip Dieback
Growing points die back
🦴
Weak Stems
Poor lignification, lodging
⏰
Delayed Maturity
Late flowering and ripening
🦠
Disease Prone
Increased susceptibility
⚠️ Important Application Guidelines
- Always conduct soil or tissue tests before application
- Do not exceed recommended rates - copper can be toxic in excess
- Avoid application during bloom on sensitive crops
- Jar test before mixing with other products
- Store in cool, dry place away from children and pets
Quick Dosage Guide
Select an application type above
FEATURES & QUALITY GUARANTEE
- 14% Chelated Copper: High concentration for efficient application
- EDTA Chelation: Stable across pH 4-9 range
- 100% Water Soluble: No residue, complete dissolution
- 3-5x More Effective: Superior to copper sulfate
- Tank Mix Compatible: Works with most fertilizers
- Professional Grade: Commercial grower quality
- CDFA Registered: California Department of Food & Agriculture
- Made in USA: Manufactured in California since 1989
- Heavy Metal Free: Third-party tested for purity
- 90-Day Guarantee: Full refund if not satisfied
- Eco-Friendly: Biodegradable packaging materials
- Expert Support: Agronomist assistance available
APPLICATION RATES & TIMING
Always conduct soil or tissue tests to determine actual copper needs. Below are general guidelines.
🌱 Soil Application
| Crop Type | Rate | Notes |
|---|---|---|
| Vegetables | 2-4 lbs/acre | Apply pre-plant or side-dress |
| Field Crops | 2-4 lbs/acre | Broadcast or band |
| Trees & Vines | 2-5 lbs/acre | Apply to root zone |
| Turf | 0.5 lb/1000 sq ft | Water in thoroughly |
🍃 Foliar Application
| Crop | Rate | Volume |
|---|---|---|
| Citrus | 1-2 lbs/100 gal | Cover spray |
| Trees/Vines | 1-2 lbs/acre | 25 gal minimum |
| Vegetables | 0.33-1.33 lbs/acre | 25 gal minimum |
| Turf | 1 tbsp/1000 sq ft | Thorough coverage |
💧 Fertigation/Hydroponics
| System | Concentration | Target ppm Cu |
|---|---|---|
| Hydroponics | 0.5-2 oz/100 gal | 0.05-0.20 ppm |
| Fertigation | 1-2 lbs/acre/app | As needed |
| NFT/DWC | 1 oz/100 gal | 0.10 ppm |
🌳 Individual Trees
| Tree Size | Rate per Inch | Annual Maximum |
|---|---|---|
| Young (1-3") | 0.5 oz/inch | 2 oz total |
| Medium (4-8") | 1 oz/inch | 8 oz total |
| Large (9"+) | 1.5-2 oz/inch | 20 oz total |
COPPER CALCULATOR
Chelated Copper EDTA Calculator
Calculate exact amounts for your specific application
Soil Application
📋 Recommended: 2-4 lbs per acre depending on crop
Foliar Spray
📋 Mix rates vary: 0.33-2 lbs per acre
Hydroponics/Fertigation
📋 Target: 0.05-0.20 ppm Cu in solution
Individual Trees
📋 Apply 0.5-2 oz per inch of trunk diameter
Deficiency Diagnosis Tool
📋 Check symptoms to assess copper deficiency severity
COMPARE WITH OTHER COPPER SOURCES
| Feature | Copper EDTA | Copper Sulfate | Copper Oxide |
|---|---|---|---|
| Copper % | 14% | 25% | 75% |
| Water Solubility | 100% | Moderate | Insoluble |
| pH Stability | 4-9 | Below 6.5 | Limited |
| Bioavailability | Excellent | Good | Poor |
| Speed of Action | Fast | Moderate | Very Slow |
| Tank Mix Compatible | Yes | Limited | No |
QUICK REFERENCE GUIDE
📋 Application Quick Reference
Field Crops:
2-4 lbs/acre
Broadcast or band
2-4 lbs/acre
Broadcast or band
Foliar:
0.33-2 lbs/acre
25+ gallons water
0.33-2 lbs/acre
25+ gallons water
Trees:
0.5-2 oz/inch diameter
Apply to root zone
0.5-2 oz/inch diameter
Apply to root zone
Hydroponics:
0.5-2 oz/100 gal
0.05-0.20 ppm Cu
0.5-2 oz/100 gal
0.05-0.20 ppm Cu
DOCUMENTS
FREQUENTLY ASKED QUESTIONS
What is chelated copper EDTA?
Chelated copper EDTA is copper bonded with EDTA (Ethylenediaminetetraacetic acid), creating a protected form that remains available to plants across pH 4-9. It's 3-5x more effective than copper sulfate because the chelation prevents copper from becoming locked up in the soil.
How do I know if my plants need copper?
Signs include: young leaves turning pale green/yellow (chlorosis), twisted or malformed new growth, dieback of growing tips, weak stems, delayed maturity, and increased disease susceptibility. Soil tests below 0.2 ppm or tissue tests below 5 ppm indicate deficiency.
Why is EDTA chelation better?
EDTA chelation offers: pH stability (4-9 vs. 6.5 for sulfate), no precipitation with phosphates, 3-5x better absorption, longer availability, tank mix compatibility, and less phytotoxicity than sulfate forms.
What's the application rate?
Soil: 2-4 lbs/acre for most crops. Foliar: 0.33-2 lbs/acre in 25+ gallons. Trees: 0.5-2 oz per inch trunk diameter. Hydroponics: 0.5-2 oz/100 gallons for 0.05-0.20 ppm Cu. Always test first!
Can I mix it with other products?
Yes! EDTA chelation makes it compatible with most fertilizers and pesticides. Always jar test new combinations first. The chelation prevents reactions that would normally lock up copper.