• All our products are manufactured in California, USA
• Tested by independent third-party laboratories for quality assurance
• Registered with the California Department of Food and Agriculture (CDFA)
• Rigorously tested to ensure products are free from heavy metals

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.

We're committed to sustainable practices, including:

• Biodegradable packaging
• Precise nutrient formulation to reduce runoff
• Support for eco-friendly farming methods

1% of all profits go to our foundation, focused on improving educational opportunities for children.

Zinc sulfate is an essential micronutrient fertilizer containing 35.5% zinc and 16.5% sulfur. Zinc is crucial for plant enzyme systems, protein synthesis, and growth hormone production. Without adequate zinc, plants develop interveinal chlorosis (yellowing between leaf veins), stunted growth, and reduced yields. According to the WHO, 31% of the world's population suffers from zinc deficiency, making zinc-enriched crops important for human nutrition. Plants absorb zinc from the soil and concentrate it in their edible parts, providing a natural way to address dietary zinc deficiency.

Zinc deficiency symptoms vary by plant but commonly include:

• Interveinal chlorosis (yellowing between leaf veins while veins remain green)
• Stunted growth and shortened internodes creating a "rosette" appearance
• Small, narrow, or malformed leaves
• Delayed maturity and poor fruit set
• In pecans: small leaflets, wavy margins, and "mouse ear" symptoms
• In corn: white or yellow stripes on leaves

Zinc deficiency is most common in alkaline soils (pH above 7.0), sandy soils, or soils high in phosphorus. Soil tests showing less than 1.0 ppm available zinc typically indicate deficiency.

Yes, zinc sulfate is an effective natural alternative for moss control and weed management. For moss on roofs and structures, mix 3 ounces per gallon of water and spray evenly. The zinc ions disrupt moss cell structure, causing it to die and detach within 7-14 days. As a herbicide, use 4-6 ounces per gallon for broadleaf weeds or 6-8 ounces for grasses. Apply on sunny days for best results. Unlike chemical herbicides, zinc sulfate breaks down naturally and won't harm the ecosystem. Always test on a small area first and avoid runoff to desired plants.

Pecan trees have high zinc requirements and benefit from regular applications. For foliar application, mix 2-3 pounds of zinc sulfate per 100 gallons of water (or 2-3 tablespoons per gallon). For best results, add 1/4 tablespoon of urea per gallon to improve zinc absorption. Apply to young leaves early in the season when leaves are 1/3 to 2/3 fully expanded. Focus on lower leaf surfaces where absorption is highest. For mature trees, apply 1-2 pounds of zinc sulfate per tree as a soil application in early spring, working it into the soil around the drip line.