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SCOTTS MIRACLE-GRO
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor is an effective slow-release fertilizer on a wide range of indoor and outdoor container plants for up to 6 months.
As low as
$18.85
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Osmocote Plant Food Plus Outdoor Indoor Product Page
Min : 18.85 - Max : 34.28
Price as of
09/05/25
09/05/25
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See how our pricing compares to other online retailers for this item.
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, manufactured by Scotts Miracle-Gro, is a superior granule fertilizer that provides up to 11 essential nutrients and a 15-9-12 npk ratio to promote consistent growth of garden plants both indoors and outdoors.
Each product granule consists of a homogenous nutrient prill coated with semi-permeable resin derived from linseed oil to ensure the controlled release of NPK and secondary nutrients. Using the natural moisture in the soil, nutrients are slowly released over 6 months to match the development of plant root systems and the uptake of nutrients within various climates.
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor provides excellent and safe foliage development for beginning or experienced gardeners as over-applications exceed by 3 times the rate will not result in plant burn.
Tools Needed
It comes ready to use as it can be applied directly from the container or by pouring the granules into the product cap to act as a measuring spoon.
How to Use
- Step 1: Determine how much Osmocote Smart-Release Plant Food Plus Outdoor & Indoor to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet, then multiply them together (length X width = square footage). Apply 1 capful of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor per 2-gallon plant pot or 4 sq. ft.
- Step 2: While wearing gloves, shake the proper amount of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor granules onto the soil, then mix it in the first layer of soil about 1-3 inches deep. Water the treated area with a light amount of irrigation.
- Step 3: Reapply Osmocote Smart-Release Plant Food Plus Outdoor & Indoor every 6 months.
Where to Use
Apply Osmocote Smart-Release Plant Food Plus Outdoor & Indoor to outdoor and indoor potted plants.
When to Use
This product should be used when plants are being re-potted or potted up. It may also be used when plants are established or growing in a container.
Safety Information
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when applying this product.
Keep out of reach of children and pets.
Special Considerations
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor contains molybdenum (Mo). Applying fertilizer materials containing molybdenum (Mo) may result in forage crops containing levels of molybdenum (Mo) that are toxic to ruminant animals.
| Availability | Online |
| Restricted Use | No |
| Shipping Restrictions | 8 Pound: No Restrictions 2 Pound: No Restrictions 1 Pound: No Restrictions |
| Brand | SCOTTS MIRACLE-GRO |
| Keith's Pro Tips | "To keep ruminant and burrowing pests away, we recommend using an animal repellent or installing the proper fencing around treated outdoor foliage." |
| Product Drawbacks | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will not burn plants when used as instructed on the label, but if instructions are not followed then there is a possible risk. |
| Active Ingredient | Nitrogen 15%, Phosphate 9%, Soluble Potash 12%, Magnesium 1.3%, Sulfur 6.0%, Boron 0.02%, Copper 0.05%, Iron 0.46%, Manganese 0.06%, Molybdenum 0.02%, and Zinc 0.05% |
| Product Type | Fertilizer |
| Formulation | Granular |
| Application Rate | Apply 1 capful of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor per 2 gallon plant pot or 4 sq. ft. |
| Shelf Life | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will last up to 3 years when stored in a dry clean location. |
| Yield | 1 lb. of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will cover up to 37 sq. ft. 2 lb. of this product will cover 75 sq. ft. 8 lb. of this product will cover 300 sq. ft. |
| Use Sites | Indoors, Outdoors |
| Time to Kill | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will last up to 6 months. |
| Comparable Products | Osmocote 18-6-12 (8-9M) Fertilizer |
| EPA Registration # | N/A |
| Restricted Use | No |
|---|---|
| Availability | Online |
| Keith's Pro Tip | "To keep ruminant and burrowing pests away, we recommend using an animal repellent or installing the proper fencing around treated outdoor foliage." |
| Time to Kill | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will last up to 6 months. |
| Chemical Type | Fertilizer |
| Formulation | Granular |
| Product Drawbacks | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will not burn plants when used as instructed on the label, but if instructions are not followed then there is a possible risk. |
| Active Ingredient | Nitrogen 15%, Phosphate 9%, Soluble Potash 12%, Magnesium 1.3%, Sulfur 6.0%, Boron 0.02%, Copper 0.05%, Iron 0.46%, Manganese 0.06%, Molybdenum 0.02%, and Zinc 0.05% |
| Mix Rate | Apply 1 capful of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor per 2 gallon plant pot or 4 sq. ft. |
| Use Sites | Indoors, Outdoors |
| Yield | 1 lb. of Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will cover up to 37 sq. ft. 2 lb. of this product will cover 75 sq. ft. 8 lb. of this product will cover 300 sq. ft. |
| EPA Registration No. | N/A |
| Shelf Life | Osmocote Smart-Release Plant Food Plus Outdoor & Indoor will last up to 3 years when stored in a dry clean location. |
| Comparable Products | Osmocote 18-6-12 (8-9M) Fertilizer |
| Children or pets? | No |
| Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.