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

Amending your soil is a crucial first step when  planting. Trees, shrubs, perennials, annuals and vegetables all benefit from a richly amended soil.  Our Colorado soils tend to be alkaline and heavy with clay; not the most ideal combination for most plants.  An organic soil amendment will help break up the clay and allow air and water to move more freely through the soil and to the plant’s roots.  It will also help to decrease the pH balance of soil, making it less alkaline.  In addition, an organic soil amendment will introduce beneficial organic material into the soil that plants use for food.  Amended soils also better retain moisture, which helps conserve water.

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.

A Rich, 100%  Organic Blend of:

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B.O.S.S.’s EKO Compost is 100% Organic. It is thoroughly cured compost. Products that are only partially decomposed can actually reduce the amount of nitrogen available to your plants, because the micro-organisms will use the nitrogen to finish decomposing the material.  EKO Compost uses only untreated wood products for a consistent mix due to its controlled quality ingredients.

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Sphagnum peat is harvested from bogs in Canada and the northern United States.  It helps increase water retention in soil.  It is also acidic which helps lower soil pH.

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Mycorrhiaze refers to a variety of micro-organic fungi that form a mutually beneficial relationship with the roots of a plant. These microscopic fungi attach to the root system of the plant, either penetrating the cell wall or forming colonies around the roots. Here the fungi receive a steady supply of carbohydrates from the plant and in exchange, the plant uses the fungi’s extra surface area to absorb more water and mineral nutrients from the soil. 

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”.

$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.

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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, …

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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