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Resources

In the course of our 40 years in business there isn't a gardening question we haven't been asked. Each member of our team is ready to answer any questions you may have. No matter what area your question is, we have experts on staff with the knowledge to help you. In addition to our helpful in store staff, we have developed these online resources to help answer your gardening questions.  

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O'Toole's University

We have classes on all kinds of gardening topics, from veggie gardening to houseplants. It’s a great opportunity to get your questions answered and learn something new.

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Ask A Gardener

What gardening issue has you perplexed? The experts at O'Tooles are here for you. Ask a Gardener is your very own garden advice column where you can ask those tough gardening questions.

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Fact Sheets

If you are looking for how to facts, O'Toole's has developed a series of PDF facts sheets to help you through a variety of projects.

How To Video

Seeing is believing. We have developed a series of How To Videos to visually show you how to handle your gardening project.

Ask a Gardener

The experts at O'Tooles are here for you. Ask a Gardener is your very own garden advice column. Drop us a line!

Fact Sheets

If you're looking for a fun gardening project or for advise on a specific issue. Check out our convenient Fact Sheets!

O’Toole’s University

O'Toole's University is great opportunity to get all your gardening questions answered and learn something new.

How to Videos

Seeing is believing. We have developed a series of How To Videos to guide you on how to handle various gardening projects.

Events

Tomatomania 2025

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

$10 Off Sunkit Mini Greenhouse

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

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Gift Cards

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!

Employment

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.

Cultivating Well-being with Houseplants

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.

2023 Garden Giveaway Winners

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, …

All Blog Entries
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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…
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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