Garden Fertilizer
Growing up, you were always told to eat your fruits and vegetables. We need to feed ourselves with nutritious foods that provide nutrients to make us big, strong, and healthy. Your plants are no different. As plants grow, they undergo an intensive process that strips nutrients from the soil. To replenish those nutrients and keep your plants happy and healthy, our plants need fertilizer. But choosing the right fertilizer for your garden can be a tough choice. Every yard is different from the next!
O'Toole's Garden Centers understands that local Colorado landscape. Each yard is different from the next and requires a different fertilizer in order to keep your plants happy! That's why we keep our shelves stocked with different fertilizer choices and have our knowledgeable employees on hand to help you find the perfect fertilizer for your needs. Check out a few of our fertilizer options below and see our Fertilizer Plans page to learn more about how you can best take care of your garden.
Colorado's Choice Magic
Colorado's Choice Magic is a bloom booster unlike any other on the market today. It is a concentrated water soluble plant food that is immediately available to plants. It has been innoculated with mycorrizae - microorganisms that attach themselves to the roots of flowering plants, enabling them to absorb more of the nutrients vital to flower production. This will result in more, bigger, longer-lasting and vibrant blooms! Use on annuals, perennials and flowering shrubs beds or containers.
Espoma
Since 1929, Espoma Tones have been some of the finest organic fertilizers on the market. Each is a complex blend of natural organics that break down slowly for steady, continuous feeding. They’re safe to use around kids and pets and low in salts so they won’t burn. And, all the Espoma Tones Contain Bio-tone® microbes which help increase root production.
- Rose-Tone
- Plant-Tone
- Holly-Tone
- Tomato-Tone
- Bulb-Tone
- Flower-Tone
- Tree-Tone
Bio-Tone
Originally designed for professionals, Bio-Tone is the ultimate starter food. Bio-Tone combines an all-natural plant food with mychorriaze, microorganisms that attach to the root systems of plants and help promote larger root masses so plants establish fast. This helps promote bigger blooms and reduces transplant loss.
Neptune's Harvest
Neptune's Harvest fertilizer is made with fresh caught North Atlantic fish right on the docks of Gloucester, MA. No synthetic materials are mixed into the fish hydrolysate, and the only manipulation the product undergoes is grinding and hydrolysis. This process yields a stable, non-odorous, liquid fertilizer that is an easy to use, safe product. Neptune's Harvest hydrolyzed fish fertilizer rebuilds soil, gives excellent plant growth with increased yields, and is made from a renewable aquatic resource.
Events
Join us for the world’s largest (and most fun) tomato plant sale! It’s what the New York Times called, “the tomato freaks’ Woodstock”.
Deals
Expires April 30, 2025
Help seedlings root raster and more vigorously with gentle warmth and the perfect humidity. Food-grade BPA-free plastic, 72-cell insert, adjustable dome, humidity vents, and heat mat.
Expires April 30, 2025
Help seedlings root raster and more vigorously with gentle warmth and the perfect humidity. Food-grade BPA-free plastic, 72-cell insert, adjustable dome, humidity vents, and heat mat.
Blog
Consider a gift card for birthdays, Mother's Day, or the Holidays. Shop together, plant together and watch together as your gift grows and blossoms into the future!
Spring is calling, and so are we! O’Toole’s Garden Center, a Denver favorite for over 45 years, is looking for passionate plant enthusiasts to join our team for the upcoming season.
How do you escape the stress of today’s news and the artificial lights of your computer screen and smart phone?
Our customers say that gardening is part of their “me time”, and that it helps them feel hopeful and positive, the same can be said about caring for houseplants.
Thank you to everyone who participated in the 2023 Garden Giveaway contest! It’s so fun to see how your gardens take shape after meeting you while shopping in our stores. First Place @js_customs8 View this post on Instagram A post shared by John (@js_customs8) “I’ve been working on my garden and landscape for 25 years,” says JS, …
