Frequently Asked Questions

How do I apply the Mile-Hi Fertilizer products?

Each product has unique application instructions. Please see the individual Product pages and look under “How to Use.”

How soon will I see results?

Typically, we begin to see results within 30 days as this is a slow release fertilizer. Our products are all natural and therefore it takes a little longer. Organic fertilizers usually contain many plant nutrients in low concentrations. Many of these nutrients have to be converted into inorganic forms by soil bacteria and fungi before plants can use them, so they typically are more slowly released, over time.

Do I need a soil test before I apply this?

A soil test is a great tool to measure a plant’s growing potential. Often, soil nutrients are either lacking or may be in abundance which affect plant health and growth. A soil test is recommended every few growing seasons to establish a baseline of nutrients and other characteristics including pH, soil texture and amount of organic matter. We recommend using the Colorado State University soil lab—normal turn-around time is two weeks. Instructions, pricing and more information can be found on their website. Click on horticultural applications for gardeners.

How is this different from chemical products?

Mile High Rose Feed uses a unique combination of 6 organic elements – Kelp Meal, Mile-Hi Alfalfa Meal, Meat and Bone Meal, Blood Meal, Fish Meal and Cottonseed Meal. The primary elements used are Nitrogen, Phosphorus, and Potash.  The secondary elements are Calcium, Magnesium and Sulfur. There are a few trace elements of iron, zinc, manganese, copper, boron, and molybdenum.

What time of year should I use it?

Each product has unique application frequency instructions. Please see the individual Product pages and look under “How to Use.”

Why is an organic fertilizer better than a chemical one?

Organic fertilizers such as manures, compost or bone meal are derived directly from plant or animal sources. Inorganic fertilizers such as ammonium sulfate or ammonium phosphate are often called commercial or synthetic fertilizers, because they go through some manufacturing process, although many of them come from naturally occurring mineral deposits. Since bacteria and fungi have to decompose organic fertilizer before they can be taken up by plants, nutrients are released more slowly, especially during cold weather when soil microbes are not as active. But organic fertilizers have many advantages. With organic fertilizers soil crusting is reduced. Organics may improve water movement into the soil and, in time, add structure to the soil. Organics feed beneficial microbes, thereby making the soil easier to work. Organic fertilizers may cost more than chemical, or inorganic fertilizers, because they are less concentrated, supplying fewer nutrients pound for pound.

Should I use more than one of your fertilizer products on my plants?

We recommend using Mile-Hi Kelp Meal in combination with either Mile-Hi Rose Feed or Mile-Hi Flower & Vegetable Feed.

Tried and true for gardeners across the country.

The result of 30 years of research and testing, Mile-Hi Fertilizer is an eco-friendly blended mixture of plant nutrient compounds that encourage root growth while boosting overall plant health. Adding Mile-Hi Fertilizer to the soil improves moisture retention and enhances soil texture as it decomposes.

Find it in a store near you.

  • Is the perfect ratio of nutrients and minerals to help your roses thrive.

    A Colorado Rosarian
  • The late Dr. Warren Kirkley used to say that you can tell the health of the soil in your rose bed by turning over a shovel of soil and counting the number of worms you’ve unearthed. Worms love Mile-Hi.

    Carol Macon Master Consulting Rosarian, Colorado Springs
  • I've recorded first hand, the improved growing, flowering, and survivability of my and other's roses when using Mile-Hi Rose Feed. The ingredients are supported by research as being highly beneficial to shrub type plants. The formulator of MHRF was an avid, active grower of roses and researched his recipe continuously in order to choose the most efficacious ingredients.

    A Colorado Rosarian
  • My roses are much more productive when they are fed with this fertilizer.

    A Colorado Rosarian
  • Their flower and vegetable feed and kelp meal make great soil amendments. To help new plants get established, I use the kelp meal mixed in planting backfill for its superior water holding ability. Then it breaks down to improve the soil and the plant roots.

    Dave Ingram Denver Rose Society
  • Along with Flower and Vegetable Feed, Mile-Hi Rose Feed adds important nutrients to our alkaline soil for the cultivation of strong, healthy roses. I’d also add a half cup to all your Clematis too. They seem to love it too.

    A Colorado Rosarian
  • Rosarians on the front range of the Rockies are fortunate indeed to have a dry fertilizer formulated expressly for native soils. The bottom line for the Macon Garden fertilizing regimen is Mile-Hi Rose Feed, which we have been using for as long as it has been available, with excellent results.

    Carol Macon Master Consulting Rosarian, Colorado Springs
  • The use of organic Mile-Hi Rose Feed gives me bigger and more colorful rose blooms on healthier plants. What else is there to say? It works well on anything I grow. It’s a great fertilizer that you only have to apply three times a year. It builds soil structure, and promotes strong plants from the roots up.

    Dave Ingram Denver Rose Society

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