Two years after the first Earth Day, in 1972, the Arbor Day Foundation was inaugurated. After 50 years, it is growing. This non-profit connects the world’s largest network of tree-planting organizations, people and partners. In 2026, this network planted about 6.5 Million trees, and their goal for 2027 is 10.5 Million trees. We human beings can’t cool the earth, remove carbon dioxide from the atmosphere, add oxygen to our air or make dry streams flow, but trees can. And we humans can plant and care for trees. [Read More]

Water-Wise Plants for a No-Water Garden
In our 35 years of experience gardening on our two-acre property in the rocky short-grass prairie in far-north Boulder, CO, we have found the plants listed here to grow successfully without supplemental watering once established. The early years of the gardens were blessed with more natural precipitation than we are experiencing now. Some plantings receive more attention than others, but these plants have all managed without irrigation for long [Read More]

Natural and Sustainable Gardening
Harlequin’s Gardens is a family nursery and garden center in Boulder, Colorado dedicated to natural and sustainable gardening for our region.
We specialize in native plants, organic vegetable and herb starts, xeriscape, hardy roses, Colorado-adapted and unusual perennials, fruit trees and berry bushes, groundcovers, hardy cacti, and seeds.

Earth-Friendly Products
We also offer Earth-friendly products to support your plants: soil-building products, composts, mulches, fertilizers; books by local authors; non-toxic pest-management supplies; and good advice.
Harlequin’s Gardens has a country charm and is famous for our customer service, our display gardens and the selection and success of our plants.


