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O'Toole's University

Postponed due to COVID-19

 O’Toole’s University is a series of gardening classes that start in March.  Whether you're a greenhorn or green thumb, it’s a great opportunity to get your questions answered and maybe learn something new.  And best of all, unless otherwise posted, all O’Toole’s U classes are absolutely free!  Sign up using the links below or at any store.


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Class Schedule:

Tomatomania 2026
Tomatomania 2026

The world's largest tomato plant sale is coming back to O'Toole's! Ultra-rare varieties, 60+ types of plants, limited quantities.

Attracting Butterflies and Hummingbirds to Your Colorado Garden

Learn how to attract butterflies and hummingbirds to your Colorado garden with native milkweed, the right feeders, and pollinator-friendly plants from O’Toole’s.

How to Protect Your Plants from Late Freeze and Snow

Did you know that after May 2, there’s a still 50% chance of frost in Denver? Don’t let that stop you from getting your garden started now! O’Toole’s offers frost blankets and other products to help protect your plans from hard freezes. If you’re a vegetable gardener, we recommend this Insulated Plant Protector/Mini Greenhouse from Dalen. Tubes of water to insulate young …

Mother’s Day Centerpiece

Mother’s Day is coming up and we have some table inspiration from @homewithholliday for the plant lover inside of you! This table measures an amazing selection of fresh herbs, house plants and succulents – all from O’Toole’s Garden Centers. This tablescape not only smells great and is visually vibrant with greenery but will last for weeks as a dining table …

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