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Osmocote Plus 15-9-12, 8-9 mo. Controlled-Release Fertilizer, 50 lbs.
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$134.70
Osmocote® Plus 15-9-12, 8-9M
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.
Purchase directly from HydroBuilderOsmocote® Plus 15-9-12, 8-9M
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.
Guaranteed Analysis
Total Nitrogen (N): 15%
Nitrate nitrogen (N-NO3): 6.6%
Ammoniacal nitrogen (N-NH4): 8.4%
Phosphorus Pentoxide (P2O5): 9%
Potassium Oxide (K2O): 12%
Magnesium (Mg): 1.3% (Water soluble: 0.8%)
Sulfur (S): 5.9%
Boron (B): 0.02%
Copper (Cu): 0.050% (Water soluble: 0.050%)
Iron (Fe): 0.46% (Water soluble: 0.09%; Iron EDTA: 0.006%)
Manganese (Mn): 0.06% (Water soluble: 0.02%)
Molybdenum (Mo): 0.020%
Zinc (Zn): 0.050% (Water soluble: 0.011%)
Benefits
Patterned Release Technology meets specific feeding cycles with unmatched consistency, efficiency, and safety
Can be incorporated into growing media or surface applied in the container
Use alone or in combination with a water-soluble fertilizer
Safe for sensitive crops
Suitable for use with dibbling equipment
Application Rates
Longevity at Average Media Temperature
60°F (15°C)
70°F (21°C)
80°F (26°C)
90°F (32°C)
9-10 months
8-9 months
6-7 months
5-6 months
Surface Application (Grams)
Common Container Volumes
Approx. Containers per Cubic Yard*
Low
Med
High
6" azalea / hibiscus (1.5 qt.)
539
7
11
15
6" standard (1.75 qt.)
462
8
13
18
6.5" azalea (1.8 qt.)
449
9
13
18
8" azalea / hibiscus (3 qt.)
269
14
22
30
8" mum pan (1 gal.)
260
15
23
31
9" mum pan (1.25 gal.)
166
23
36
49
10" hanging basket (1.25 gal.)
150
26
39
54
12" color bowl (2 gal.)
112
34
53
73
12" hanging basket (2.25 gal.)
100
39
59
82
1 quart
850
5
7
10
2 quart
400
10
15
20
1 gallon trade
300
12
20
27
1 gallon
210
18
28
39
2 gallon trade
125
31
47
65
2 gallon
102
38
58
80
3 gallon
70
55
84
117
5 gallon
52
74
114
157
7 gallon
35
110
169
233
*May vary depending on container brand, media, and fill method.
Large Container Volumes
Large Container Volumes
Surface Area (sq. ft.)
Low
Med
High
10 gallon (17" diam.)
1.4
133
204
282
15 gallon (17.5" diam.)
1.5
143
219
303
20 gallon (21" diam.)
2.3
219
335
464
25 gallon (22.5" diam.)
2.8
267
408
565
30 gallon (26.5" diam.)
3.8
362
554
767
45 gallon (30" diam.)
4.8
457
699
969
65 gallon (30" diam.)
4.8
457
699
969
100 gallon (36" diam.)
7.1
677
1035
1433
200 gallon (48.5" diam.)
12.8
430
1148
2583
24" box
4.0
381
583
807
30" box
6.25
596
911
1261
36" box
9.0
858
807
1816
48" box
16.0
1525
2332
3228
For containers not listed, multiply surface area by:
95
146
202
Incorporation
Low
Med
High
Pounds per cubic yard
8.5
13.0
18.0
Kilograms per cubic meter
5.0
7.7
10.7
Grams per liter
5.0
7.7
10.7
Landscape**
Low
Med
High
Pounds per 1000 square feet
13.0
23.0
33.0
Kilograms per 100 square meters
6.3
11.2
16.1
Pounds of N per 1000 square feet
2.0
3.5
5.0
**ICL recommends low rate on heavy or clay soils, high rate on light or sandy soils.
Approximate Volume Measurements
#1
#2
#3
#4
#5
#6
#7
ICL spoons (grams)
9
14
18
38
49
75
100
1 tsp.
1 tbsp.
1/4 c.
1/3 c.
1/2 c.
1 c.
Conventional measures (grams)
5
15
63
86
126
252
How to Use
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)
Consult rate tables printed on bag labels and product sheets
For incorporation, blend into growing media to ensure uniform distribution of fertilizer
Do not over-mix (doing so could damage fertilizer coating)
Growing media should be used within two to four weeks after incorporating fertilizer
For top-dress applications, spread fertilizer evenly on container surface (avoid piling fertilizer directly against plant stem)
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)
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)
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)
Store in a clean, cool, dry place






