Today through the end of the season take 30% off Perennials, Shrubs, Roses, Vines, Grasses, Organic Seasonal Veggies, and Trees, and 30% off soil products in big bags, and Compost Tea. (No discount on fruit trees, veggies, bulbs, 2023 seeds, or Holiday Market Books).
One-year-old seed and Cover Crop seed is now FREE! What a great way to experiment, and become familiar with, Cover Crop seeds! Available cover crops include various individual cover crops, and a mix of Field Peas, Hairy Vetch, and Triticale.
(Photo: Campsis radicans, Red Sunset Trumpet Vine)[Read More]
Our 2022 Fall Members-Only Sale has finished, and now our Big Fall Sale has begun, with 20% off for everyone! Plants included in this week’s sale are:
We propagate and grow a lot of great plants here at the nursery, which gives us (and you!) an advantage when the wholesale suppliers run short in mid and late summer. We’re very pleased to have beautiful stock of some highly desirable and hard-to-find shrubs and perennials right now, including some choice native plants, Plant Select® winners, and customer favorites. 
Daylilies are old favorites for good reasons. They are:
Bur Oak (Quercus macrocarpa) is a majestic, slow-growing tree reaching 60 to 70’ in height and spread, and is typically very long-lived (think 200, 300+ years!). It’s the sort of tree you plant for the benefit of the generations to come. Many oak species don’t thrive in Colorado’s alkaline soils, but Bur Oak is a happy exception. It is also drought-tolerant once established, even in dry clay, and can handle city conditions quite well. Bur Oak’s strong wood and strong, almost right-angled branch connections resist breakage in wind and snow. 
Monarch butterflies previously considered Threatened, have now been classified as Endangered by the International Union for Conservation of Nature, the world’s most comprehensive scientific authority on the status of species. Two major driving factors are habitat loss (and thus, food loss), and climate change. 
In late June Eve and Mikl attended two inspiring events that are related in that both organizations / institutions are concerned with researching, trialing, and introducing plants that are resilient in the face of the challenges presented by Climate Change, especially increasing heat and long-term drought. 
In this period of high heat, it makes sense to water more often than usual. We water twice as much in July as we do in other months. BUT REMEMBER that plant roots need air, too. And if the soil is continually wet, plant roots won’t be able to use the water, and may rot. The best approach is still to water deeply, but not too frequently. The best time to water is in the early morning when less water will evaporate, and water droplets can dry from plant leaves early in the day, certainly before evening when fungal diseases can take hold on wet foliage. What does that mean, “water deeply”? It means that when you irrigate by hand or sprinkler or drip, the soil should be moist to a depth of at least 4”. Moisture meters and the old ‘screwdriver test’ are not as accurate as digging a small hole 4 to 6” deep and feeling the soil. If it is dry at 4” just after watering, you will need to water longer. 
Hardy Geraniums are some of the most versatile an adaptable perennials for our area! Available in many colors and habits, they can be useful in sun and shade, moist and dry, as individual specimens, companion plants and ground covers.
The Good News is that out of about 900,000 insect species currently living on our planet, only 1% to 3% are pests. We do not need systemic neonicotinoids (neonics) or any toxic pesticides to grow plants well. The solution is to employ human attention, biodiversity, nutrient-dense soils, application of nontoxic management, and tolerance.
As temperatures rise and we begin to wilt from the heat, many plants rise to the occasion and burst into bloom! Many of these summer stalwarts have spent the cooler, wetter months developing root systems or taproots that delve well below the hot, dry surface soil. Pollinators depend on finding pollen and nectar sources through the entire summer, so it’s important to include mid and late-summer bloomers in your garden. 
Okay, you prepared your soil and planted your vegetable garden with all kinds of wonderfully flavorful, nutritious foods, you’re watering and watching them grow, and wondering ….. When can I start to eat them, how do I harvest them, and how do I get the most out of these plantings? Here are some tips on vegetable crops harvest timing and techniques that may not be self-evident. Even if you’re a seasoned gardener, you may not be aware of some of these procedures! 
With great sadness, we share the news that the pioneering plantsman David Salman passed away on the fifth of June. David was a dedicated, passionate, and articulate educator and proponent of sustainable gardening, a plant explorer with a gift for selecting and introducing exceptional plants for western landscapes, and the founder of Santa Fe Greenhouses, High Country Gardens, and Waterwise Gardening. 
Pollinator Month is a special time for Harlequin’s Gardens – a time when we celebrate the hard work of bees (honeybees, solitary bees, bumblebees) wasps, ants, flies and bee flies, butterflies and moths, beetles, some bats and birds, and some mammals. They’re all around us, connecting the dots between flowers and food.
We would like to invite you to visit the Boulder-Dushanbe Teahouse Rose Garden in downtown Boulder across from the city park. The unique treasure of an intricately handcrafted, traditional Tajik Teahouse was gifted to the city of Boulder by the citizens of Dushanbe, Tajikistan, one of Boulder’s Sister Cities, in 1988. In time, the design of the structure was amended to be able to house a restaurant business, construction was completed, and the Teahouse opened in spring of 1998. Both the inside and outside of this fabulous building are elaborately adorned with colorful carved, painted and sculpted elements, mostly traditional, plus some contemporary artistry. 
If you’re looking for inspiration for your garden, a great place to begin is in other people’s gardens. Take a break from your trowel and spade to inspect and enjoy a wide variety of mostly private gardens made available for public viewing for just a day. Usually, the gardener is present to talk with you about their vision and their process and can identify the plants and features that catch your attention. To participate, some tours require membership in an organization, some sell tickets, and others are more free form. Two of the upcoming tours include Harlequin’s Gardens – Colorado Native Plant Society Garden Tour and the rescheduled Rocky Mt. Chapter Rock Garden Society Garden Tour, both on Saturday June 4th. Following are several garden tours to consider participating in. 
Our best selection of plants for the 2022 season is here now! Even though record numbers of customers have poured in this month and left with record numbers of great plants and products, we STILL have tons and keep bringing out more!
We were just getting comfy and confident in the progressing spring weather, when Mother Nature reminds us that She is in control!
We’re close to Boulder Valley’s “average last frost” date, and except for being windy and dry, it sure feels like Spring! Lots of gardeners are asking whether it’s safe to prune now, especially roses and shrubs. The answer is YES! But…..
This week, we invite you to visit us and choose some new plants to nurture and mother. And honor the Mothers in your life with the plants, garden items, books, classes or healthy products they’d love. We have a beautiful line of glazed pots for patios, entryways and balconies. Our organic pepper, tomato, and herb starts are pouring in, as are many new perennials and shrubs, roses, vines, grasses, and annuals, all neonic-free. We also have plenty of fruit trees and berry bushes, and seeds for delicious summer crops like beans, basil, cucumber, zucchini, pumpkin, and melon, and glorious pollinator-supporting flowers like Lace Flower, Poppy, Zinnia, Sunflower, Nasturtium, Gloriosa Daisy, Cosmos, Morning Glory, and many, many more!
Give yourself a break by putting away your lawn mower for the month of May with the additional benefit of feeding our early bees!
What a glorious spring! Having been blessed with generous snow and rain, the land is bursting with energy, greener than green, and flowering in kaleidoscopic exuberance! Migratory birds have been arriving or passing though our region this month, offering sightings of avian treasures like Lazuli Buntings and Western Tanagers, not to mention the hummingbirds. We do live in a wondrous world!
The bad news is that last week’s small delivery of tomato starts froze when the wind blew open the back door of our greenhouse in the middle of the night.
We are here for you! You’re in the high desert/steppe now, with short growing seasons, sudden temperature changes, unpredictable precipitation, low humidity, drying winds, alkaline soils that are low in organic matter and nitrogen, hot summers and cold winters. Despite these challenges, gardens can thrive here, and be productive, rewarding and beautiful!
It’s nesting time for many of our little birds, and they are out there house hunting! Providing housing opportunities for them will bring benefits to your garden as birds eat large numbers of insects like mosquitos, scale, various larvae, etc., and give you the pleasure of watching them raise their broods. 
So they can support us!
Opening Day will be here in just a few minutes (or it seems to our busy-bee staff!) and our doors will re-open this Thursday, March 3rd at 9 AM. We hope to see you then! Our hours for the month of March are Thursday through Sunday, 9 AM to 5 PM. Then beginning Tuesday, April 1st, our hours expand to six days a week, Tuesday through Sunday. 
This morning’s broadcast of 
We know Mother Nature is teasing us with these delightful warm weather days, and they give us hope for the warm spring days ahead! However, snow and cold temperatures are again forecast to arrive this weekend, a pattern that will continue through March, and into April.
Spring is Not here. But it is coming.
Like miniature iris emerging from the warming soil, March launches Harlequin’s Gardens early spring season, and our doors will re-open on Thursday, March 3rd. Our hours for the month of March are Thursday through Sunday, 9 AM to 5 PM. Then beginning Tuesday, April 1st, our hours expand to six days a week, Tuesday through Sunday.
Stay tuned for our 2022 class listings, and as your spring-flowering bulbs emerge, refer to our 
Your landscape is not just something to look at. It is an opportunity to support your values by:
“The less biodiverse any system is, the greater the potential for its collapse.” Janisse Ray, from The Seed Underground: A Growing Revolution to Save Food.
Historically February is one of Colorado’s snowiest months, and finally we’re beginning to see evidence of that this year! Additionally, the forecast indicates more to come. It remains to be seen how some of our marginally hardy garden plants have suffered from the below zero temperatures.
Our hearts go out to the many people who suffered devastating losses in the Marshall wildfire. It may be possible to rebuild homes, but their contents may be irreplaceable and the sudden disruption to lives will present great challenges. Communities will also need to be rebuilt, and we are hoping the larger community will continue to step up to offer long-term support to all those in need. It takes a village! 