Harlequins Gardens

Boulder's specialist in well-adapted plants

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Home | Plants | Roses

Roses

Harlequin’s Gardens specializes in cold hardy roses on their own rootstock. We generally have nearly 200 varieties in stock which we have selected to be the most successful, best adapted rose varieties for Colorado. And we continue to test new and old varieties in our trial gardens. We only carry a few hybrid tea and floribunda roses, because they are generally lacking in cold-hardiness and disease-resistance. All of our roses are grown on their own roots, which means they are not grafted. There are many advantages to own root roses:

  1. More cold tolerant
  2. Stronger and more floriferous
  3. Far less prone to virus infections
  4. If they should die to the ground in a harsh winter, they will come up from the roots true to variety
  5. Longer lived.

Over 45 varieties of these roses are demonstrated at the Boulder-Dushanbe Teahouse and another 75 varieties have recently been planted at Harlequin’s Gardens. In addition to these excellent roses, we have an educated staff that will help you to choose the right roses for your particular locations.

VIEW OUR 2023 ROSE LIST

Own-Root Roses

Did your roses take a hit from the unusually cold winter we just experienced? Perhaps they look as though they didn’t make it, showing brown, shriveled canes and no new growth above the ground. Or maybe there are no signs of life on the canes, but there is new growth just coming up from the ground. Either way, if your roses are growing on their own roots, you’re in luck. If they were grafted onto a rootstock, the prospects are not so good.[Read More]

Boulder-Dushanbe Teahouse Rose Garden

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. 
[Read More]

Springtime Pruning for Roses & Flowering Shrubs

We recently passed Boulder Valley’s “average last frost” date (May 9).With all this rain, it sure feels like Spring! Lots of gardeners are asking if it’s safe to prune now, especially roses and shrubs. The answer is YES! But…..

Pay attention to the characteristics of the particular shrubs and roses you’re thinking of pruning. [Read More]

Canadian Roses for Colorado

The Canadians, like their English and French ancestors, have a great love of roses. However much of Canada is in zones 4, 3 and even zone 2. Therefore many of the hybrid tea and floribunda roses bred in modern times have not been tough enough for Canadian gardeners. So the Canadians set their own federal agriculture department to work on breeding roses that succeed in Canada. Not only do these roses do well north of our border, they are very successful in Colorado, even in our higher elevation environments. Our 10-20 below zero winters and dramatic temperature changes can kill or significantly injure more tender roses like the hybrid teas and floribundas. So gardeners in Colorado who don’t have time to remove large masses of dead canes, hill soil around the canes to protect them for winter, and who have less inclination to spray and fertilize frequently, find the Canadian-bred roses provide a rewarding and easy-care alternative.[Read More]

Climbing Roses for Colorado

Many Colorado gardeners have been frustrated in their attempts to grow climbing roses. The main problem seems to be that the tall canes die back and though they may bloom, they look like shrubs, not climbers. We are green with envy of the European and Californian gardens with roses cascading over and festooning pillars, walls and bowers. Why can’t we achieve this? I think we can, but not without a very discriminating approach. First of all we must realize that our cold temperatures and especially the rapid cold-hot-cold changes, and our drying winter winds are death to all but the hardiest rose canes.

[Read More]

Henry Kelsey Rose

Henry Kelsey (1984 Kordesii cross) is an Explorer Series  rose from Ag. Canada that is hardy  to Zone 3 and is considered by many to be the best red-flowered climber for cold climates. It is very vigorous and grows strongly even in lean soils. Whereas it can be grown as a low arching shrub to 4’, it excels as a short climber to 8’-10’ and looks especially good trained down a split-rail fence. The flowers are semi-double with prominent golden stamens, opening a luscious deep red and fading to a pinker medium red. The fragrance is light but pleasant and the clusters of flowers repeat from June until frost. Where I have grown it in a very low water area over the last five years it has performed well and has not died back on the trellis, but repeat flowering is intermittent rather than continuous. One of the truths of xeriscape is that not all plants that grow well on low water, flower as well. Sometimes just one or two deep waterings during bloom time will make a big difference in flower production.[Read More]

Cold-Hardy Climbers

At the end of last season I wrote about how to succeed with climbing roses in Colorado. Besides winter watering and careful siting out of the worst wind, the most important factor is the choice of very cold hardy roses that are grown on their own roots. The books may say we are zone 5 but when the temperature drops from 50 at noon to 5 at two a.m., we better hope our rose is zone 4 or even zone 3 hardy. With climbers this is even more true because if the canes die back to two feet the rose may still bloom but it won’t function as a climber that year. Here are a few of the toughest and most cold-hardy climbing roses for Colorado.  [Read More]

Roses that Survive and Thrive in Colorado

After last November’s 77 degree cold plunge to 13 degrees below zero, most roses suffered die-back, some died to the ground and some died completely. But there were roses that had only minimal damage and some that will bounce back with a good show of vigorous growth and generous flowering this year. Here are some observations and conclusions about growing sustainable roses in Colorado.

Roses are cane shrubs, similar to blackberries and raspberries. Their wood has a pithy center and is not as hard or as strong as a lilac. Consequently roses are more vulnerable to insects, diseases, desiccation and cold, but another consequence is that they can grow and regrow much faster than woody shrubs like lilac and viburnum.[Read More]

Boulder Dushanbe Teahouse Rose Garden

Boulder Valley Rose Society
Hardy Roses Demonstration Garden
1770 13th St. Boulder, Colorado

This garden, planted in 1998, is both the Hardy Rose Demonstration Garden of the Boulder Valley Rose Society and an environment that delights the senses and calms the spirit, such as you might find at a teahouse in Tajikistan.

Designed by Eve Reshetnik-Brawner and Mikl Brawner, the garden includes 43 varieties of roses of many types, including Old Garden roses, Species roses, Canadian, Modern Shrub and David Austin’s English roses. These roses were chosen for their Old World Character, cold hardiness and disease-resistance. In addition, these roses are not grafted, but grown on their “own roots” which makes them tougher and longer-lived. These qualities have allowed the Boulder Valley Rose Society to maintain this rose garden without the use of chemical fertilizers, fungicides and pesticides. These roses are examples of how successful roses can be in Colorado.[Read More]