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Osmocote Plus 15-9-12 is recommended when growing a wide variety of plants. Standard release pattern delivers a steady stream of nutrition throughout the growth cycle.
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Patterned Release Technology meets specific feeding cycles with unmatched consistency, efficiency, and safety
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Can be incorporated into growing media or surface applied in the container
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Use alone or in combination with a water-soluble fertilizer
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Safe for sensitive crops
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Suitable for use with dibbling equipment
Longevity at average media temperature
| 60 ̊F (15 ̊C) | 70 ̊F (21 ̊C) | 80 ̊F (26 ̊C) | 90 ̊F (32 ̊C) |
|---|---|---|---|
| 4-5 months | 3-4 months | 2-3 months | 1-2 months |
Surface application (grams)
| Common container volumes | Approx. containers per cubic yard1 | Low | Med | High |
|---|---|---|---|---|
| 6" azalea / hibiscus (1.5 qt.) | 539 | 3 | 7 | 10 |
| 6" standard (1.75 qt.) | 462 | 3 | 8 | 12 |
| 6.5" azalea (1.8 qt.) | 449 | 3 | 8 | 12 |
| 8" azalea / hibiscus (3 qt.) | 269 | 5 | 14 | 20 |
| 8" mum pan (1 gal.) | 260 | 5 | 14 | 21 |
| 9" mum pan (1.25 gal.) | 166 | 8 | 22 | 33 |
| 10" hanging basket (1.25 gal.) | 150 | 9 | 24 | 36 |
| 12" color bowl (2 gal.) | 112 | 12 | 32 | 49 |
| 12" hanging basket (2.25 gal.) | 100 | 14 | 36 | 54 |
| 1 quart | 850 | 2 | 4 | 6 |
| 2 quart | 400 | 3 | 9 | 14 |
| 1 gallon trade | 300 | 5 | 12 | 18 |
| 1 gallon | 210 | 6 | 17 | 26 |
| 2 gallon trade | 125 | 11 | 29 | 44 |
| 2 gallon | 102 | 13 | 36 | 53 |
| 3 gallon | 70 | 19 | 52 | 78 |
| 5 gallon | 52 | 26 | 70 | 105 |
| 7 gallon | 35 | 39 | 104 | 156 |
| Large container volumes | Surface area in square feet | Low | Med | High |
|---|---|---|---|---|
| 10 gallon (17" diam.) | 1.4 | 47 | 126 | 188 |
| 15 gallon (17.5" diam.) | 1.5 | 50 | 135 | 202 |
| 20 gallon (21" diam.) | 2.3 | 77 | 206 | 309 |
| 25 gallon (22.5" diam.) | 2.8 | 94 | 251 | 377 |
| 30 gallon (26.5" diam.) | 3.8 | 128 | 341 | 511 |
| 45 gallon (30" diam.) | 4.8 | 161 | 430 | 646 |
| 65 gallon (30" diam.) | 5.6 | 190 | 520 | 742 |
| 100 gallon (36" diam.) | 7.1 | 239 | 637 | 955 |
| 200 gallon (48.5" diam.) | 12.8 | 430 | 1148 | 1722 |
| 24" box | 4.0 | 135 | 359 | 538 |
| 30" box | 6.25 | 210 | 560 | 842 |
| 36" box | 9.0 | 303 | 807 | 1211 |
| 48" box | 16.0 | 538 | 1435 | 2152 |
| For containers not listed, multiply surface area by: | 34 | 90 | 135 |
Incorporation
| Low | Med | High | |
|---|---|---|---|
| Pounds per cubic yard | 3.0 | 8.0 | 12.0 |
| Kilograms per cubic meter | 1.8 | 4.7 | 7.1 |
| Grams per liter | 1.8 | 4.7 | 7.1 |
Landscape2
| Low | Med | High | |
|---|---|---|---|
| Pounds per 1000 square feet | 7.0 | 13.0 | 20.0 |
| Kilograms per 100 square meters | 3.4 | 6.3 | 9.8 |
| Pounds of N per 1000 square feet | 1.1 | 2.0 | 3.0 |
Approximate Volume Measurements
ICL spoons
| #1 | #2 | #3 | #4 | #5 | #6 | #7 | |
|---|---|---|---|---|---|---|---|
| Grams | 10 | 14 | 19 | 39 | 51 | 75 | 101 |
Conventional measures
| 1 tsp. | 1 tbsp. | 1/4 c. | 1/3 c. | 1/2 c. | 1 c. | |
|---|---|---|---|---|---|---|
| Grams | 5 | 16 | 71 | 94 | 141 | 283 |
1
Verify product analysis, longevity, and rate for plants in your production system (for assistance, contact your regional ICL Territory Manager or call ICL Customer Service at 800-492-8255)
2
Consult rate tables printed on bag labels and product sheets
3
For incorporation, blend into growing media to ensure uniform distribution of fertilizer
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Do not over-mix (doing so could damage fertilizer coating)
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Growing media should be used within two to four weeks after incorporating fertilizer
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For top-dress applications, spread fertilizer evenly on container surface (avoid piling fertilizer directly against plant stem)
7
Irrigate after application (irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions, and desired soluble salt levels)
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A product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices (test several rates on representative plant types)
9
Use caution when applying to plants being over-wintered under cover (if you can't monitor soluble salts and/or adjust irrigation practices, avoid Fall and Winter applications
10
Store in a clean, cool, dry place
Brand details
This product is part of the Osmocote Plus portfolio
Available in a variety of longevities and release patterns, it's the most versatile and widely-used CRF on the market.
Learn more about Osmocote Plus
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