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Osmocote® Outdoor & Indoor Smart-Release® Plant Food

Overview & Benefits

    Our classic offering. It's 4-month, 19-6-12 formula has become the industry standard for slow-release plant food. Often imitated but never equaled, Outdoor & Indoor feeds throughout the plant's active growing season without risk of chemical burn.

    Watch a video of Martha Stewart using Osmocote® Outdoor & Indoor Smart-Release® Plant Food in a window-box garden.

    For more information, read our product specification sheet.

Available sizes:

    Available in water resistent bottles of 1.25 lb. and 3 lb. and in a re-sealable 10 lb. bag.
  • How to Use

    For outdoor use, sprinkle evenly across areas to be fed and work into the top 1-3 inches of soil. When transplanting annuals from flats or when re-potting, mix into the soil and growing media at the bootom of the hole before planting. Water.

  • When to Apply

    Apply to outdoor plants every 4 months during the growing season. Can be applied to indoor plants, also every 4 months, year-round.

  • How often to apply

    Reapply every 4 months.

  • Where to Use

    Apply with confidence to potted plants, indoors or outdoors

  • Coverage Area

    Established annuals and perennials: Sprinkle 3 tablespoons for every 2 x 2 ft area. Work into top 1-3 inches of soil or mulch.

  • Benefits

    Each granule is coated with a unique resin that controls nutritional release so that plants get what they need, when they need it. All-in-one granules contain all three major nutrients (NPK) that are vital to plant nutrition.

  • Cautions

    Reentry may be achieved after you have watered in the product and the area has dried.

  • Fertilizer Analysis


  • Packaging


  • Shelf Life

    Product will last for many years (+8) as long as the prills remain dry.

This is not the product label. Always read and follow the product label before use.

Material Safety Data Sheets can be found at

Product Ratings

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