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.
Our Products
At Mile-Hi Fertilizer, we craft a proprietary mix of all-natural ingredients to make flowers and vegetable gardens flourish in multiple climates. Our products have produced beautiful results for decades thanks to their time-tested and proven formulation. The Mile-Hi suite of products improves soil condition as it nourishes blooming plants.

All-Natural Ingredients

Bee Friendly

Pet Friendly

Endorsed by Colorado Rose Societies

Proven Formula Since 1979
Rose Feed
Rosarians use all-natural Mile-Hi Rose Feed to grow healthier, fuller and more brilliant roses.
For Healthier & More Vibrant Roses
Flower & Vegetable Feed
Mile-Hi Flower & Vegetable Feed is a proven product: a unique mixture of plant nutrient compounds and minerals for a truly balanced, complete fertilizer.
For Bigger & More Vibrant Flowers & Vegetables
Kelp Meal
Mile-Hi Kelp Meal is a 100% renewable product that stimulates root development, reduces transplant shock and alleviates temperature stress.
Stimulates Root Development & Enhances Plant Growth
About Us
The belief that perfection exists.
The patience to prove it.
Our founder, Royal Franklin, was not just an avid lover of roses. He was an innovator dedicated to formulating the perfect rose food using only all-natural additives. Season after season, Royal experimented in his garden in Littleton, Colorado, researching and testing year after year until he came upon the perfect combination of ingredients. He began selling his proprietary mix to friends and neighbors out of his garage in the 1980s. Without any advertising, Royal’s company flourished as rosarians using his product enjoyed healthier, fuller and brighter roses. They spread the word as liberally as they spread Mile-Hi fertilizer on their gardens. Today, rose societies across Colorado endorse Mile-Hi products, while their members rely on them to grow their prize-winning roses.

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Find Us in Stores
Mile-Hi is in gardening stores and specialty retailers across Colorado.
Stay in Touch
We’ll keep you updated with the latest from Mile-Hi.
A home-grown company committed to all-natural ingredients.