Gro-Power is sold in over 250 stores in the US. Click here to find your closest location
We suggest contacting the store to make sure they have the specific product you are looking for as not all locations carry our full product line.
Don’t see a location near you? Contact us at (800) 961-1220 or info@huma.us.
Feed turf areas with Gro-Power Plus 5-3-1 at 20 – 25 lbs. per 1,000 sq. ft. at 8-12 week intervals. Gro-Power Premium Hi-Nitrogen 14-4-8 at 7 lbs. per 1,000 sq. ft. can be alternated with Gro-Power Plus 5-3-1 during the cool season.
Aerify turf areas a minimum of two (2) times per year. Vertical mow or aerify during end of March or first of April, or at the end of October. Feed after aerifying or verticutting.
Pre-emergenents: Use pre-emergenents starting mid-January to mid-March and post-emergence starting mid-May to the end of September. It is best to use Gro-Power products after applying herbicide. Use herbicide per manufacturers directions and licensed applicator/advisor.
Apply ½ lb. Gro-Power Plus 5-3-1 for every inch of caliper measured 14” above the soil level. For trees within ground cover areas, work into soil lightly around drip line and water thoroughly.
Turf areas: Turf applications should be sufficient to feed younger trees.
Deep root feedings: Auger holes around the drip line for deep root feeding to enhance plant growth for older trees or problem soil areas. Make holes 18 to 24 inches apart. Use Gro-Power Plus 5-3-1 per above directions as to the amount and divide by the number of holes you are going to fill. Before inserting Gro-Power in holes, mix with an equal amount of sand and insert that mixture. Irrigate immediately and thoroughly.
Feed all trees 3 times per year.
Palm and other tropical plants have unique requirements in our western soils. Feed with Gro-Power Palm & Tropical 9-3-9 at the rate of 1/3 cup per 1 foot of trunk height on palm trees. In tropical plant beds, feed at the rate of 15-25 lbs. per 1,000 sq. ft. Feed every 3-4 months.
FEEDING POTS AND CONTAINERS WITH GRO-POWER 5-3-1:
Feed during the growing season every 45 days. 1 cup = approximately 8 ounces
4” Pot…………………. ¼ level teaspoon 30” Box …………………………1 ½ cups
6” Pot…………………. ½ level teaspoon 36” Box………………………….2 ½ cups
8” & 1 Gal. Can …….….1 level teaspoon 42” Box…………………………….3 cups
2 Gal. Can ……………….. 1½ teaspoons 48” Box…………………………….4 cups
5 Gal. Can ………………..2 Tablespoons 60” Box ……………………………8 cups
15 Gal. Can ……………………… ½ cup Soil Plant Mix 8 oz. of Gro-Power per cubic
24” Box…………………………….1 cup foot of mix.
| Gro-Power Planting Tablets can be substituted for more convenient, long-term feeding. See Specifications on Gro-Power Planting Tablets. |
For long-term feeding, apply one of Gro-Power ’s three Controlled Release 12-8-8 formulations at the rate of two (2) tablespoons per each foot of height or width of plant around surface of pot. Feed at interval recommendations per formulation. Reduce the Gro-Power Controlled Release rate by half on sensitive and delicate plants, or use Gro-Power Planting Tablets.
To prevent and correct iron deficiencies, supplement per directions with Premium Green Iron.
ESTABLISHED PLANTS:
| PLANT SIZE | LIGHT FEEDING | HEAVY FEEDING |
| Miniature Roses | 1-2 tsp. | ———- |
| New & Small Plants (1’-2’) | 2 Tbsp. | ¼ cup (2 oz.) |
| Medium Plants (2’-4’)* | ¼ cup (2 oz.) | 1/3 cup (3oz.) |
| Large Plants (4’+)* | 1/3 cup (3 oz.) | ½ cup (4 oz.) |
*For upright, climbing & tree roses, this represents the height. For trailing and carpet roses this represents the width.
Begin applying Gro-Power Premium Rose Food 6-8-4 after first growth appears in early Spring and apply every 30-40 days during growing season with final application in Fall. Spread evenly over soil under each plant and water thoroughly after each application.
BARE ROOT ROSES: Put 2 Tbs. of Gro-Power Premium Rose Food 6-8-4 in bottom of hole. Cover with 1-2 inches of soil. Install plant and back fill hole with soil. Scatter 2 Tbs. of Rose Food around plant and water thoroughly.
NOTE: Consider adding 4-5 Gro-Power®Planting Tablets in hole for long term feeding.
So-called “Acid-Loving” plants include Azaleas, Camellias, Rhododendrons, Gardenias and Clematis. Feed with Gro-Power Premium Azalea-Camellia-Rhododendron Food 6-4-4.
For feeding your entire garden, apply 2 lbs. (about 4 cups) per 100 sq. ft. Feed 4 times annually. Water thoroughly after each application. Consider supplementing with Gro-Power Premium Green Iron (40% Fe) to help prevent and correct extreme chlorosis.
| GARDEN PLANTS | CONTAINER PLANTS |
| 1-2 Ft. ………………… ¼ cup | 6” Pot/1 Gal…………………… ½ tsp. |
| 2-3 Ft. ………………… 1/3 cup | 8” Pot/2 Gal…………………… 1 tsp. |
| 3-4 Ft. ………………… ½ cup | 10” Pot/3 Gal………………….. 1 Tbs. |
| 4-6 Ft. ………………… ¾ cup | 12” Pot/5 Gal………………….. 2 Tbs. |
| 6 Ft. +……………….. 1-2 cups | 14” Pot/7 Gal………………….. ¼ cup |
| 16” Pot/15 Gal…………………. ½ cup |
Feed with Gro-Power Premium Citrus-Avocado Food 8-6-8 or Premium Fruit Nut & Vine Food 8-6-8.
CITRUS, AVOCADO, NUT and other FRUIT TREES
| TREE HEIGHT | TRUNK DIAMETER | RATE |
| New – 4” | 1” – 1 ½” | 1 cup |
| 4’ – 6’ | 1 ½” – 2” | 1 ½ cups |
| 6’ – 8’ | 2” – 2 ½” | 2 cups |
| 8’ – 10’ | 2 ½” – 4” | 3 cups |
| 10’ + | 4” + | 4-5 cups |
Spread evenly around drip line of tree and water thoroughly. Feed 3-4 times per year.
BERRY BUSHES, GRAPE VINES, ETC….
| NEW – SMALL | MEDIUM | LARGE |
| ¼ cup | ½ – 1 cup | 1 ½ – 2 cups |
Spread evenly around plant and water thoroughly. Feed 3-4 times annually.
CONTAINERS
| 1 GALLON | 5 GALLON | 7 GALLON | 15 GALLON |
| 1 tsp. | 2 Tbs. | 3 Tbs. | 1/3 cup |
Feed every 2-3 months. Water thoroughly.
GENERAL LANDSCAPE
Use for general landscape at the rate of 10-16 lbs. per 1,000 sq. ft.
Feed 2-3 times a year with Gro-Power Plus 5-3-1 at 20 lbs. per 1,000 sq. ft., or individually as follows:
Small plants…………………………………………………….. 3 tablespoons to ¼ cup
Medium plants………………………………………………………….. ¼ cup to ½ cup
Large plants………………………………………………………………….. ½ to 1 cup
1 cup equals approximately 8 ounces
FEED SPRING, SUMMER AND FALL
Feed with Gro-Power Flower’N’Bloom 3-12-12 when buds have formed and until the plant is finished blooming at approximately 4-week intervals. Then feed after blooming with Gro-Power Plus 5-3-1 at same rates monthly until August. Feed once more in early Fall with Gro-Power Flower’N’Bloom 3-12-12 at same rate. To prevent or correct yellowing due to iron chlorosis, supplement with feedings of Gro-Power®Premium Green Iron (40% Fe) at the rate of 5 lbs. per 1,000 sq. ft., 2-3 times annually or as needed.
ApplyGro-Power Flower’N’Bloom 3-12-12 monthly at the rate of 20 lbs. per 1,000 sq. ft. When planting annual flowerbeds during the year, prepare soil by mixing 3 cu. yds. of planter mix, nitrolized shavings or equal and 200 lbs. of Gro-Power Plus 5-3-1 per 1,000 sq. ft. and rototill into top 6-8 inches of soil. After planting, one month later, begin feeding with Gro-Power Flower’N’Bloom 3-12-12 as before.
Feed 2-3 times annually with Gro-Power Plus 5-3-1 at the rate of 25 lbs. per 1,000 sq. ft.
In areas where access is limited, scatter Gro-Power Toss’n’Gro 8-8-8 over the area of slope at the rate of 17-20 lbs. per 1,000 sq. ft. for long-term feeding and soil conditioning. For an alternative, use one of Gro-Power’s three Controlled Release formulations.
FOR TREES ON SLOPE SEE “TREES” SECTION. USE INDIVIDUAL FEEDING AND/OR DEEP ROOT FEEDING.
We suggest a soil analysis be taken annually from the site so adjustments can be made in the program.
In areas where replanting is necessary, incorporate 2-3 yards of planting mix and 150-200 lbs. of Gro-Power Plus 5-3-1 per 1,000 sq. ft. before planting new plant material, turf, etc.
GRO-POWER breaks up compacted and heavy soils.What Is GRO-POWER?
GRO-POWER is a complete fertilizer and soil conditioner. All GRO-POWER products contain all essential plant nutrients plus Humus, Humic Acids and beneficial soil microorganisms. All GRO-POWER products contain non-staining iron, manganese and zinc, with the exception of our liquid product.
What Is Humus?
Humus is organic matter which has decomposed over a long period of time; it is in a state which can vastly improve the physical structure of any soil.
What Are Humic Acids?
Humic Acids are organic compounds made up of enzymes and proteins and naturally occur in soils rich in Humus. Humic Acids help to maintain the chemical balance in your soil.
Is GRO-POWER Organic?
The base of GRO-POWER products is natural and organic, but most of the plant food elements are not “certified” organic. We do have a new product, “GRO-POWER PURE’N’NATURAL” which is “100% Organic”. All GRO-POWER products are non-toxic and contain no sewage, animal or human waste of any kind.
Can I Use GRO-POWER In My Whole Garden?
GRO-POWER has all-purpose products for preparing and maintaining your complete garden. The product line also includes specialty products for flowers, lawns, trees, shrubs, roses, palms, water gardens and specialty plants., etc. GRO-POWER also comes in several forms, such as granular, liquid, controlled release and tablets.
Where Can I Get GRO-POWER?
GRO-POWER products are available from your better independent nurseries and garden centers.
Can I Buy GRO-POWER Products Directly From You If There Is Not a Retail Nursery in My Area?
YES, all of our retail products can be sold and shipped to you directly if you can’t find them in your area. Please email us at info@huma.us.
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Gro-Power, Inc., Premium Green, Flower’n’Bloom, Matrix, Pure’n’Natural, GroLife, ADS, Micro-Balance, Prescription Foliars, RBG
are registered trademarks owned by Gro-Power, Inc.
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