To many, soil is just dirt. At O'Toole's, we understand that soil is the elixir of life! By definition, soil is the mixture of minerals, organic matter, gases, liquids, and countless organisms that live just under the surface. This mixture provides the necessary natural nutrients to your plants in order to give them a stable foundation on which to grow. We also understand that Colorado has a unique terrain that can require different soil classifications depending on your neighborhood and what sort of planting you are planning on.

Soil is important and that's why O'Toole's carries only the best brands of soils for our customers. See a few of our soil options listed below and visit your local O'Toole's Garden Centers location to get the soil you need today!

Colorado's Choice

Colorado's Choice Top Soil

Top Soil

Top Soil is great all-purpose fill dirt. It can be used for filling in low spots in the garden, correcting lawn grades or building up raised beds.

Colorado's Choice Cow & Compost

Cow and Compost

A robust mixture of compost and aged and screened dairy cow manure, Cow and Compost adds organic material to your soil and is great for use around flowers and vegetables or for top dressing your lawn. Cow and Compost is locally produced and 100% organic.

Colorado's Choice Potting Soil

Potting Mix

Colorado’s Choice Potting Soil is the best value for container planting. It can be used for any kind of transplanting, indoors or outdoors, and can even be used as a seed starter. It contains Spaghnum Peat Moss, Fir Bark, Compost and Perlite to create a light soil mix with good drainage.

Colorado's Choice B.O.S.S.

Colorado's Choice BOSS

The soil amendment that we recommend most is Colorado’s Choice B.O.S.S. (Bio Organic Soil Supplement). B.O.S.S. is made here in Colorado and it’s ideal for Colorado soils.  B.O.S.S. is a rich, organic mixture of peat moss and EKO compost, fortified with mycorrhiaze. To learn more about B.O.S.S. please visit the B.O.S.S. page.

Bark & Mulch

Bark mulch can be used as a decorative groundcover and so much more!  Mulching around the plants in your garden will help the soil retain moisture, keep weeds down, protect roots and boosts the health of your soil.  Our bark mulch comes in a variety of sizes including  Small, Medium, Large, Mini Nuggets, Soil Pep and Western Red Cedar

More Soils

Fox Farm Soils

FoxFarm is a family business dedicated to producing the finest quality garden products available anywhere. All formulas are handcrafted in small batches and are packed rich organic ingredients and microbes to replenish the soil, lift the human spirit, and beautify the Earth, naturally.


EKO Soils are made right here in Colorado and have been since 1977. EKO Products help promote rich organic soil, vigorous root growth, water infiltration and drainage, and PH balance. EKO improves the soil’s physical, chemical and biological health. Bark mulch can be used as a decorative groundcover and so much more!

25% Off All 4-Packs of Annuals

Valid May 18-19, 2024

For one weekend only, we're offering this 25% off deal. Save the dates and save big!

$3 Off True Organic Preplant Starter

Valid May 1-31, 2024

For this month only, we're offering this $3 off deal. Save the dates and save big!

Chris Ibsen

Store Manager – Littleton

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

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, …

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 …

Planting Winter Crops: A Guide to Growing Shallots, Onions, and Garlic

As the weather turns colder, many gardeners are ready to pack up their tools and wait until spring to start planting again. But why wait when you can start growing delicious winter crops? At O’Tools, you can find a variety of bulbs and plants perfect for winter gardening, including shallots, onions, and garlic. When planting shallots, it’s important to remember …

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