• Wear chemical-resistant gloves when handling or measuring
• Use safety glasses or goggles — fine powder can irritate eyes
• Wear a dust mask (N95 or equivalent) when working with dry powder in enclosed spaces
• Wash hands and exposed skin thoroughly with soap and water after handling
• Avoid touching face, eyes, or mouth during use

• Store in a cool, dry location in the original sealed container
• Keep away from direct sunlight, moisture, and heat sources
• Boric acid is hygroscopic — reseal tightly after each use to prevent clumping
• Store separately from food, animal feed, and seeds
• Keep out of reach of children and pets

• Never exceed recommended application rates — boron toxicity is difficult to reverse and can persist in soil for extended periods
• Do not apply foliar sprays during bloom or in temperatures above 90°F
• For pest control use, keep bait stations and treated areas away from pets, children, and food preparation areas
• Do not apply near water bodies — boric acid can be toxic to aquatic organisms at elevated concentrations
• Always conduct a soil or water test before applying to confirm deficiency

• Eye contact: Flush immediately with clean running water for 15 minutes, lifting eyelids. Seek medical attention if irritation persists.
• Skin contact: Wash affected area thoroughly with soap and water. Remove contaminated clothing.
• Ingestion: Do not induce vomiting. Contact Poison Control (1-800-222-1222) or seek medical attention immediately.
• Inhalation: Move to fresh air immediately. Seek medical attention if breathing difficulty or symptoms persist.

Refer to the Safety Data Sheet (SDS) for complete safety and emergency response information.

Boron deficiency is one of the most common micronutrient disorders in plants — particularly in sandy soils, high-rainfall areas, and soils with pH above 7.0. Symptoms include stunted growing tips, hollow or corky stems, poor fruit set, thick and brittle leaves, and misshapen produce. Boric acid provides immediately plant-available boron (as borate ions) that plants absorb through both roots and leaves. Because boric acid is 17% boron, even small applications deliver meaningful correction. Learn more in our article on what boron does in plants.

Yes — boric acid is approved for use in certified organic growing systems when applied according to recommended rates. Our 99.9% pure formula contains no synthetic additives or carriers. Boric acid is a naturally occurring boron compound that provides essential nutrition without disrupting soil biology when used at correct rates. As with all micronutrients, the key is precision: boron has a narrow sufficiency range, so accurate application is essential for both plant health and soil safety.

Boric acid disrupts the digestive systems of insects such as ants, cockroaches, and silverfish when ingested. It also damages their exoskeletons through desiccation over time. One key advantage over chemical pesticides is that insects do not develop resistance to boric acid's physical mode of action. In bait station applications, worker insects carry the boric acid back to the colony before it takes effect, providing broader control. For more natural pest control strategies, see our guide: A Guide to Natural Herbicides, Pesticides, and Fungicides for Your Garden.

When used as a plant fertilizer at recommended rates, boric acid applied to soil or as a pre-bloom foliar spray poses minimal direct risk to pollinators. However, avoid applying foliar sprays directly to open flowers or during active pollinator foraging hours. For pest control applications, place bait stations in sheltered locations away from foraging areas. See our article on creating a pollinator-friendly garden and how boric acid fits into that approach.

The most reliable way to confirm boron deficiency is a soil test or plant tissue test. Visual symptoms — hollow stems, rough or corky texture on fruit, poor fruit set, death of growing tips — are helpful indicators but can overlap with other issues. Boron deficiency is most common in sandy soils, soils with pH above 7.0, and areas with high annual rainfall that leaches micronutrients. We recommend testing before applying so you can dial in the correct rate and avoid the risk of over-application.

When used as a fertilizer at agronomic rates and properly watered in, boric acid poses minimal risk to pets once incorporated into the soil. For pest control applications, keep bait stations in enclosed stations that pets cannot access, and avoid dusting surfaces where pets walk or rest. Do not allow pets to consume concentrated powder or undiluted solutions. As with any garden input, store securely and keep out of reach of animals.

• Manufactured and packaged in California, USA
• Registered with the California Department of Food and Agriculture (CDFA)
• Independently tested by third-party laboratories for purity and heavy metal content
• 99.9% pure boric acid — no fillers, no carrier agents, no synthetic additives

We stand behind every product we sell. If you're not completely satisfied with your Boric Acid 17% Boron, return the unused portion in its original packaging within 90 days for a full refund — no questions asked.

• Packaging made from biodegradable materials — can be composted after use
• Raw materials sourced from reputable suppliers with established quality standards
• Precision concentration (17% boron) means less product needed per application, reducing overall input volume and environmental load
• Organic certification supports sustainable growing practices

• 1% of all profits from product sales are donated to the Greenway Foundation
• The Greenway Foundation supports children's education initiatives
• Your purchase directly contributes to improving educational opportunities for children