15-9-12, 8-9 M Hi-start

Ideal for greenhouse and nursery container plants, foliage production, and landscaping

15

N

9

P2O5

12

K2O

Osmocote Plus 15-9-12 Hi-Start provides an extra boost of nutrition at the start of the growth cycle. Ideal for use on fast growing spring crops and early season bloomers.

  • 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

Longevity at average media temperature

60 ̊F (15 ̊C)70 ̊F (21 ̊C)80 ̊F (26 ̊C)90 ̊F (32 ̊C)
9-10 months8-9 months6-7 months5-6 months

 

 

Surface application (grams)

Common container volumesApprox. containers per cubic yard1LowMedHigh
6" azalea / hibiscus (1.5 qt.)53971114
6" standard (1.75 qt.)46281217
6.5" azalea (1.8 qt.)44981317
8" azalea / hibiscus (3 qt.)269142129
8" mum pan (1 gal.)260142230
9" mum pan (1.25 gal.)166223446
10" hanging basket (1.5 gal.)150243851
12" color bowl (2 gal.)112325169
12" hanging basket (2.25 gal.)100365777
1 quart850479
2 quart40091419
1 gallon trade300121926
1 gallon210172737
2 gallon trade125294562
2 gallon102365676
3 gallon705281110
5 gallon5270109148
7 gallon35104162221
1May vary depending on container brand, media, and fill method.

 

 

Large container volumesSurface area in square feetLowMedHigh
10 gallon (17" diam.)1.4126196267
15 gallon (17.5" diam.)1.5135210286
20 gallon (21" diam.)2.3206322438
25 gallon (22.5" diam.)2.8251392534
30 gallon (26.5" diam.)3.8341532724
45 gallon (30" diam.)4.8430673915
65 gallon (30" diam.)4.8430673915
100 gallon (36" diam.)7.16379951353
200 gallon (48.5" diam.)12.8114817942439
24" box4.0359560762
30" box6.255608761191
36" box9.080712611715
48" box16.0143522423049
For containers not listed, multiply surface area by:90140191

 

 

Incorporation

LowMedHigh
Pounds per cubic yard8.012.517.0
Kilograms per cubic meter4.77.410.1
Grams per liter4.77.410.1

 

 

Landscape2

LowMedHigh
Pounds per 1000 square feet12.522.031.0
Kilograms per 100 square meters6.110.715.1
Pounds of N per 1000 square feet2.03.55.0
2ICL recommends low rate on heavy or clay soils, high rate on light or sandy soils.

 

 

Approximate Volume Measurements

ICL spoons

#1#2#3#4#5#6#7
Grams101419395175101

 

Conventional measures

1 tsp.1 tbsp.1/4 c.1/3 c.1/2 c.1 c.
Grams5167194141283

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
4
Do not over-mix (doing so could damage fertilizer coating)
5
Growing media should be used within two to four weeks after incorporating fertilizer
6
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)
8
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

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.

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