Putting the Color in Colorado!

3 Garden Centers Across The Denver-Metro Area

O'Toole's Garden Center's mission is to cultivate beautiful gardens, happy employees and thriving communities. Visit O'Toole's for the plants, the products, and the expert advice you need to grow the garden of your dreams. O'Toole's is proud to be a local, family owned business with over 40 years of heritage. We offer high quality garden products at affordable prices, so everyone can enjoy spending time together outside with friends and family. Let's grow together!

August 21, 2017
Fall is an absolutely wonderful time for container gardening! There’s still many warm, wonderful days ahead to enjoy beautiful flower pots, planters and containers. Here are some of our picks for fabulous fall flowers: Traditonal Favorites These annuals are absolute fall garden stand-bys. They give a beautiful pop of color throughout the season. If you’re looking for that classic autumn ...

Featured Plants

Big Beautiful Blooms

Geraniums jumpstart your flower garden with their large colorful blooms. They are commonly planted in garden beds as well as patio pots and hanging baskets. Geraniums are easy to grow and need 6-8 hours of sunlight and moist, well-draining soil. Many colors are available.

Heirloom Tomatoes
A wide variety of tastes and colors

Unique tomato varieties from O’Toole‘s are the perfect way to add to your veggie garden! Have you ever heard of the Black Krim? What about the Belgian Giant? Impress your neighbors and your taste buds by growing some of these hard to find types of tomatoes in your very own backyard!

WaterSaver Program

Expires Sept. 30, 2021

Save $10 on our year-long, 100% organic, lawn fertilizer program. Regular Price $79.99.

50% Off All Burpee Seeds

Expires Sept. 30, 2021

Hundreds of varieties of flowers, perennials, vegetables, fruits, herbs and more!

Chris Ibsen

Store Manager – Littleton

Over 30 years with O’Toole’s! A true gardening  expert! Email Chris Favorite plant: Evergreen

Five Reasons Fall Planting is the Best!

We all know what it feels like when spring is full to bursting in those halcyon days of April and May. What better time could there be to plant your garden? But wise gardeners know to be patient. The fall is just as good, if not better, than the spring for planting perennials, trees and shrubs. Here’s five reasons why! …

Spring Cleaning for Fall

Does your garden look like a bomb went off in the spring? Do you spend the first warm weeks of May just cleaning up the wreck winter has wrought? Well, this year get out ahead with some simple housekeeping now. Remove any plant debris including any old fruits or veggies that have fallen on the ground. Bugs and disease love …

Why Do Leaves Change Color in the Fall?

  The French writer Albert Camus called fall “a second spring where every leaf is a flower.” In Colorado, we are lucky enough to have one of the most dazzling “second spring” color displays in the world. Colorado aspens transformed into a shimmering sea of gold on a warm September afternoon is truly a sight to behold and the next …

Planting Trees in the Fall

Many people think that once fall rolls around, the planting season is over. But September is a actually great time to plant trees, shrubs and perennials. There’s an old proverb we like to recite this time of year – “The best time to plant a tree is 20 years ago. The second-best time is right now!” Root Development When planting …

All Blog Entries

2020 Garden Giveaway Winners!

September 18, 2020
It was so inspiring to see all the creativity and gardening passion out there! Check out the winners of our 2020 Garden Giveaway! Read Full Blog Entry…
Ask a Gardener – Japanese Beetle
June 11, 2020
Japanese Beetles damage plants as both adults and larvae. Adults feed on soft leaf tissue, leaving skeletonized foliage. Larvae feed on roots, especially turf grass, leaving dead, brown patches in the lawn. Cech out this blog entry for tips and products to address both the larvae and the adult bugs. Read more