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Johnson County

Research-based Information You Can Trust — Localized for your needs

Johnson County
11811 S. Sunset Drive
Suite 1500
Olathe, KS 66061

Office Hours:

Monday - Friday,
8:30 a.m. - 5 p.m.

(913) 715-7000
(913) 715-7005 fax

Map to our office

K-State Research and Extension is committed to making its services, activities and programs accessible to all participants. Reasonable accommodations for persons with disabilities may be requested by contacting Johnson County Extension at (913)715-7000. Notify staff of accommodation needs as early as possible.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

K-State Research and Extension is an equal opportunity provider and employer.

Fertilize Strawberries in August

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Strawberries in basketsFertilizing strawberries in August will result in a bountiful crop of luscious berries next spring. As the daylight hours dwindle and temperatures grow cooler in the fall, fruit buds for next season’s crop will develop. Fertilizer applied in August promotes increased root growth and, therefore, larger plants. The result will be an increase in the number of blooms to produce more strawberries next year.

Examples and rates of fertilizers to use for this application include the following:

  • 13-13-13 at the rate of 5 pounds per 100-foot row.
  • Ammonium sulfate (21-0-0) at the rate of 3 pounds per 100-foot row.

After spreading the fertilizer over the strawberry bed, plants will require at least one half inch of water to move the fertilizer into the strawberry plants’ roots for optimum uptake.

K-State Research and Extension Johnson County Master Gardener logo

Have questions? The Garden Hotline is staffed by trained EMG volunteers and Extension staff who will assist you with questions.

Phone: (913) 715-7050

Email: garden.help@jocogov.org