Skip to content

Down To Earth Langbeinite (Sul-Po-Mag) – 5 Pound




Down To Earth’s Langbeinite delivers three crucial nutrients, sulfur, magnesium, and potassium all in one natural fertilizer. Langeinite is perfect for sensitive plants and crops as the low chlorine content minimizes the potential for fertilizer burn. A heavy dose of potassium improves overall plant health and produces strong sturdy plants and quality fruit.

  • Guaranteed Analysis: 0-0-22
  • Registered OIM and OMRI-Listed
  • Sul-Po-Mag Supplement
  • Size: 5 lb

Only 2 left in stock

Your Garden's Success is our #1 Priority

HTG Supply is committed to providing you with the very best products, pricing and service in the industry. We will ship your order fast and discreetly packaged to protect your privacy. Buy with confidence knowing your HTG Supply purchase includes simple returns as well as lifetime product support. Call our team of real growing experts with your purchasing or product use questions, and we will be here to help!

See it for less somewhere else? Give us a call and we’ll beat any online competitor’s price!

Customer Service:  1-866-710-GROW (4769) | | Hours: Mon-Fri 9:00 a.m. to 5:00 p.m.


Down To Earth Langbeinite (Sul-Po-Mag) – 5 Pound

Down To Earth’s Langbeinite 0-0-22 is a naturally mined crystalline mineral that supplies the water-soluble sulfate form of three vital plant nutrients: potassium, magnesium and sulfurs. It’s maximum chlorine content is less than 3.0 percent, minimizing the potential for fertilizer “burn,” and it’s neutral pH does not alter soil activity.

Potassium contributes strongly to overall plant health by regulating internal processes. Since potassium makes up part of the fluid of the plant, it is found throughout plant tissue, meaning plants need a strong source of potassium as they grow. Potassium deficiencies lead to weak stalks and immature roots, leaving the plant susceptible to insects.

DTE Langbeinite 0-0-22 is widely used on sensitive vegetables and fruit crops that require high fertilization rates but do not tolerate high levels of chlorine or soluble salts. This standard grade langbeinite has a typical SGN of 95 and is an excellent source of readily available sulfur, potassium and magnesium.

Applications Rates:

Vegetable Gardens & Flower Beds: To prepare new gardens, apply 1-2 lbs per 100 square feet and thoroughly mix into the top 3″ of soil. To feed established plants, side dress 1-2 tablespoons per plant, depending on size of plant, once each month during the growing season.

Containers: For new plantings, mix 1 tablespoon per gallon of soil and mix thoroughly OR add 1-2 lbs per cubic yard. For established plants, lightly mix 1-2 teaspoons per gallon into the soil surface once each month during the growing season.

Trees & Shrubs: Spread ½ -1 lb per 1″ of trunk diameter around the base outwards to the drip line, mix into soil surface and water in well. For new trees, prepare transplant hole and mix ¼ – ½ cup with the backfill soil. Use amended soil to fill in around new tree and water in well.

Row Crops/Acreage: Apply 200-500 lbs per acre depending on soil analysis, research data or specific crop needs.

Guaranteed Analysis:

  • SOLUBLE POTASH (K2O) 22.0%
  • MAGNESIUM (Mg) 10.8%
    • 10.8% Water Soluble Magnesium
  • SULFUR (S) 22.0%
    • 22.0% Combined Sulfur
  • CHLORINE (Cl) Max 3.0%

Derived from: Langbeinite

Weight 5 lbs
Dimensions 3.5 × 8 × 10.8 in


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.