Do you love having a lush lawn, but hate the idea of wasting water? Do you have dogs who leave unsightly dead spots in your lawn where they’ve urinated? If you answered yes to either of these questions, then Dog Tuff African Dogtooth Grass (Cynodon ‘PWIN04S’) may be the best choice of turf grass for you. Dog Tuff is drought tolerant, resistant to dog urine, thrives is full hot sun, and is soft underfoot. Dog Tuff is a sterile variety of Bermuda grass, so it won’t spread via seeds. Dog Tuff grass was developed by respected Colorado horticulturalist Kelly Grummons. Kelly is working with High Country Gardens, and Plant Select to market this product. Watch this Plant Select video to see Kelly discussing this wonderful product:
Kelly has been working on bringing Dog Tuff to market for over ten years. The original parentage for this grass is native to South Africa, where a lush patch of it was found on a ranch. Dog Tuff is a “warm-season” grass, so it does not green up as early as blue grass. However, as Kelly mentions in the video, Dog Tuff needs only a fraction of the water to survive as compared to bluegrass. Dog Tuff grass will grow in many soil types, but it does need full sun (6 or more hours of direct sun). Dog Tuff is rated hardy to USDA zone 5.
We recently provided design services for a public park in Arvada, Colorado, where we incorporated Dog Tuff grass into an area the park. It was planted last year and is doing well. We are excited to have this as part of a park where people can visit and see the grass in person.
If you are planning a new lawn, or if you are thinking about replacing your current lawn with a more drought tolerant type of grass, you should consider incorporating Dog Tuff African Dogtooth grass in your home landscape.
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, please visit our website at odgdesign.com.
Attendees in the lobby of the Denver Botanic Gardens where the Tree Diversity Conference was held.
This past Spring, tree enthusiasts from around the region gathered at the Denver Botanic Gardens to listen and learn from various presenters on the theme of Tree Diversity for Colorado. It seems recent crises such as the discovery of Emerald Ash Borer infestation in Boulder has revealed the urgency for members of the Green Industry to seek out more hardy and appropriate tree species for our region. There are other reasons to seek out trees better adapted to our climate. As climate scientists continue to inform us, it is likely that Colorado’s climate will get warmer and drier, providing even more challenging growing conditions for trees. Also, biotic mixing will continue to increase as more people move goods and materials far and wide across the globe. That is the most probable scenario of how EAB was found in Boulder: it was brought there in a wooden crate shipped from Asia. What far-flung exotic pest will next appear in our area?
This year’s conference was the second occurrence of such a gathering in Denver. Several new tree species were presented to the audience, along with some old stand-bys, with a discussion of each tree’s merits.
Although there were several genera that are represented in the group of trees, the two genera with the most candidates are Maples and Oaks. The other genus with multiple species that should get wider consideration for planting in our area is Ulmus (elms). While most elms have been looked over because of Dutch Elm Disease and also the invasive nature of Siberian Elm (Ulmus pulmila), there are a few cultivars that we should consider planting in Denver.
Here are ten trees that were discussed at the conference (out of many others) that you might consider planting in Colorado and the surrounding region:
Large shrub or small tree with rounded form. The Manzano is a more tree like form of bigtooth maple. Once established, the bigtooth maples are drought tolerant.
Acer miyabei ‘Morton’ – State Street Maple Ht: 50’ Wd: 35’
Rough corky bark and leaf shape are similar to Hedge Maple, but its stronger growth rate and ascending branch habit result in a larger mature size. Excellent drought and cold tolerance. Very adaptable.
This maple provides red fall color, but unlike a red maple like Autumn Blaze (Acer x freemanii), the sugar maples are more adapted to the alkaline soils of Colorado’s Front Range urban corridor.
This large oak sports a massive trunk, deeply furrowed, that supports corky ridged twigs on spreading branches that makes for a broad and rounded canopy. This variety is more resistant to the galls that can affect other Bur Oaks.
Quercus muehlenbergii – Chinkapin Oak Ht: 40’ Wd: 40’
A durable and adaptable oak with narrow lustrous glossy dark green leaves and an open, irregular, rounded habit. Prefers well drained soil.
Quercus robur x alba ‘JFS-KW1QX’ – Streetspire Oak Ht: 45’ Wd: 14’
Dark green leaves of this narrowly columnar tree are mildew resistant. Turning red in autumn, they fall to reveal stiffly upright branches. Similar to Crimson Spire, but does not hold brown foliage through the winter
Ulmus davidiana – David Elm Ht: 40’ Wd: 30’
Medium sized tree, with vase shape. Resistant to Dutch elm disease.
Grown from seed collected in China, this sturdy, upright-growing elm was selected for superior performance on the hot, arid, windswept plains of western Oklahoma. Handsome, deeply corrugated leaves emerge coppery-bronze and mature to glossy green.
Ulmus japonica x wilsoniana ‘Morton’ – Accolade Elm Ht: 70’ Wd: 60’
Arching limbs and a graceful vase shape (similar to the American elm) characterize this hybrid elm selected and tested at Morton Arboretum. Glossy, dark green foliage changes to yellow in the fall and is resistant to elm leaf beetle feeding.
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
From time to time, we here at Outdoor Design Group like to hand over the reins of this blog to a guest writer. This allows us to peer over the fence into the realm of another business, and bring our readers new views on topics related to our field of work.
This week, T.J. Wood from Plan-It Geo (a company that Outdoor Design Group has collaborated with in the past on various projects) gives us a description of an application they developed for the Colorado State Forest Service. This online tool helps Colorado communities assess their public street and park trees locally to provide a statewide picture of tree diversity and health.
Introduction:
At Plan-It Geo, we specialize in “Trees and Technology.” A tree inventory combines both of these elements seamlessly by management of this important natural resource with use of mobile devices and technology in the field. The Colorado State Forest Service contracted Plan-It Geo to develop a web-based application that communities, campuses, and HOA’s can upload their tree inventories and view important state-wide tree data summaries. To access all of our web and mobile GIS software applications, click here.
A screen shot from CO-Tree View
Colorado Tree View:
Project Profile: Colorado Tree View
Project Title: Colorado Tree View – Statewide Inventory and Ash management Application
Client: Colorado State Forest Service
Timeframe: February 2015 – Present
Description: Tree inventories provide critical information for cities, neighborhood associations, and other entities to proactively manage their urban and community forestry resource. This project provided a tool to help diversify the planning and planting of tree species. It also provided a first-time statewide view of the structure of Colorado’s urban forests. The tool is a starting point for a long-term strategy and provides substantial new technical support to communities.
Outcomes: A statewide web-based application was created for Colorado. This application has the built-in ability to “crosswalk” a wide variety of inventory data into the application. The main fields collected are species, dbh (diameter breast height), condition, and location of each tree. The application has a hierarchy of log ins based on city and user approvals with different functionality at each level. A customized dashboard was created for the state to view important number and population statistics on each community or organizational inventory.
A screen shot from CO-Tree View
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
Some interesting trends have emerged this year in landscape design. In this article I describe the 5 hottest trends we are seeing – Which of these ideas will you incorporate into your landscape?
Outdoor Stone Fireplaces
Outdoor fireplaces have been around for a long time, but in the last few years they have really gained in popularity. They can serve as a focal point in the design of a backyard landscape, while providing the functional warmth of a fire adjacent to an outdoor patio.
Here in Colorado, where the summers are dry and there are few mosquitoes or other insects, cool summer and fall evenings are perfect for gathering outdoors with family and friends. Outdoor stone fireplaces can add to the ambiance of your outdoor space.
Design Considerations: Outdoor outdoor fireplaces are typically gas burning, unless the property is in a rural area with low fire danger where wood burning is allowed. They can either be custom built using a combination stone, masonry, brick, stucco, or stone veneer; or they can purchased as a prefabricated insert that is put in place and then faced with stone or another decorative material. A combination of decorative stone or concrete caps, mantels, and hearths can also be incorporated, resulting in an almost endless variety of design opportunities.
Due to the increased popularity of outdoor fireplaces and firepits, many municipalities are updating codes and ordinances to provide more specific restrictions and design guidelines. The required distance between the fireplace and any structure may vary between 15 to 25 feet. Always make sure your landscape architect or contractor has checked with your local building department on the current rules and regulations.
Pondless Water Features
Water is one of the building blocks of life. Water features can add a calming effect to your landscape through the sounds and movement of water. They can also mask unwanted noise and bring a peaceful calm to the hustle and bustle of urban living.
The problem with most water features is that they are high maintenance. While a natural looking pond can be beautiful, they are difficult to construct and can require quite a bit of maintenance. If that maintenance is neglected, or the pond is not constructed correctly one is left with pond that leaks, one does not look natural, or lacks the proper balance of plants, fish, and filters to keep the water clean.
“Pondless” water features solve most of these issues, and are the hottest trend in water feature design. In a pondless water feature, and underground basin in purchased and installed below the ground to hold the water that is circulated through the feature.
A grate is often placed over the basin, and covered with rocks to allow the water to run through to the basin below. The water is pumped from the basin over a decorative rock or sculptural feature. The sound of water is achieved not only from the above ground feature, but by the water splashing through the rocks and into the basin below. And because the basin below ground is shaded from the sunlight, algae will not grow in the water.
Design Considerations: Depending on the size of the feature and how often you intend to run it, you may opt to install a filter and an auto-fill valve connected to a water supply to keep the feature full. You may also opt for an on/off switch for the feature at the home so you can easily turn it on or off. Don’t forget to plan for lighting the feature at night. And finally, when selecting a pump always error on the side of a larger pump, because the flow of water can always be dialed back but can never be increased.
Natural Lawns
As water prices continue to rise, homeowners and businesses are looking for alternatives to the traditional bluegrass lawn. As I have written about in the past, there are many advantages to making your landscaping more efficient, and reducing the amount of bluegrass lawn is the best way to do that.
There are many types of plantings that can be used to replace a traditional lawn, but in each case the general principles are the same: plants with reduced watering requirements that require less maintenance. This can we achieved with alternative turfgrasses, Xeriscape plantings, edible garden plants, monocultures of spreading shrubs or perennials, native plants, non-natives, natural meadows, or a combination of these elements.
Another driver in the popularity of the “natural lawn” concept is the desire of individuals and organizations to move away from using pesticides, herbicides, and fertilizers in large quantities- for the benefit of the environment and human health. Children often play on lawns and in our parks. So in addition to replacing traditional lawns, some people are turning to more organic and natural methods of lawn care.
Design Considerations: It is important to realize that less maintenance does not necessarily mean easier maintenance (at least initially). What I mean by that is a more complex planting such as a Xeriscape with many types of plants, or a natural meadow, will take more analysis and careful monitoring than a simple lawn. However, this monitoring and analysis will be more than made up for by the savings in time and resources by avoiding all of that mowing, edging, aerating, fertilizing, etc. that a traditional lawn would require.
Covered Outdoor Patios
Covered outdoor patios work great for blending indoor and outdoor living space. Over the last decade outdoor patios and gardens have been increasingly utilized as an extension of indoor space.
The latest trend is to build a waterproof roof structure over the top of an outdoor patio space. The roof structure is multi-functional, providing shade from the hot afternoon sun as well as protection from the rain and snow. Overhead roof structures also create a more intimate feeling space, creating an outdoor room at a much lower cost than adding a fully enclosed indoor room to a dwelling.
Another benefit to a covered outdoor patio is that outdoor amenities can be protected by the weather. Flat screen televisions, ceiling fans, outdoor kitchens, bar areas, speakers, and lighting can all be incorporated into this outdoor space.
Design Considerations: There are numerous design decisions that need to be made when designing a covered outdoor patio. Will the cover be attached to the home, or free-standing? Support columns for the roof structure can be designed with stone bases. The “ceiling” of the enclosure is also an important design element that should be carefully considered as it will probably be the main surface that you will see when using the space.
Urban Gardening
As the farming industry continues to get more commercialized and corporate, there has been a pushback in the form an increased demand for local farmers markets. And there is no place more local than one’s own yard.
As individuals strive to have more control and knowledge of where their food comes from and how it is grown, many are turning to growing their own produce. Growing a garden is nothing new- however today’s gardens are getting larger and taking up a bigger percentage of the yard. In some cases, urban gardening is being used for an entire backyard or a good portion of a front yard.
The urban gardening trend jives perfectly with the “natural lawn” trend. While some people are replacing their traditional lawn with decorative Xeriscapes, others are replacing their lawns with edible gardens. But even edible gardens can be beautiful- there are many decorative herbs that get showy flowers, and some produce such as bright red and yellow peppers can add visual interest to the landscape.
Design Considerations: If you are considering expanding or adding edible garden space there are a few aspects to be mindful of. If you have a homeowner’s association, remember to check their rules on gardens. Consider using decorative paths between your beds, and attractive raised planters can be utilized to keep the space looking a little more organized. Finally, be mindful of pests and rodents that may be attracted to the garden.
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
The drought of 2002 was very hard on landscaping in Colorado. Plants and lawns were stressed by the hot and dry conditions, and mandatory watering restrictions were put in place across the state. Many of us in the landscaping industry vividly remember these hard times.
Well, the drought is back. Today the USDA predicted a huge drop in corn yields, the latest is a long summer of bad drought news. Below are maps issued by the U.S. Drought Monitor from back in July of 2002 and from July of 2012. As you can see, there are many similarities and much of Colorado is once again in an “extreme drought” situation.
Dryness and drought, exacerbated by above-normal temperatures, have been increasing both in extent and intensity across much of the central and northern U.S. Based upon the July 24 U.S. Drought Monitor, almost 64 percent of the contiguous U.S. was in drought (D1-D4), the highest such value for the U.S. Drought Monitor since its inception in 2000. The last time the lower 48 States had a comparable area of drought (based upon the monthly Palmer Drought Index) was in 1956, according to NCDC.
Across the Southwest, the odds favor an active (wet) southwest monsoon in both the 1- and 3-month precipitation outlooks. As a result, improvement is anticipated across much of Arizona, southern Utah, and southwestern Colorado as the summer monsoon continues.
What Does this Mean for Landscaping in Colorado?
As these maps illustrate, the drought conditions that plagued Colorado in 2002 have resurfaced, and most long-term indicators point to continued drought. The good new is that there are some relatively simple changes and considerations for your landscaping to make it resilient to these conditions.
Some of the lessons we have learned and changes that can be made to your landscaping to better withstand drought include:
Design new landscapes to be more drought tolerant in the first place. Take a more thoughtful professional approach to your landscape design and consider long term maintenance costs as well as installation costs. Consider hiring a landscape architect or design professional.
Install the latest irrigation technologies to eliminate wasted water: smart weather based controllers, rain sensors, efficient spray nozzles and drip irrigation, to name a few.
If lawn areas are not used for foot traffic, and are simply for aesthetics, convert these areas to masses of low growing shrubs, groundcovers, or native grass. You can achieve a similar look with plant massings at the groundplane while reducing water needs and maintenance requirements significantly.
If you have an older irrigation system, consider having a professional do a water audit, and upgrade old nozzles to new, more efficient ones. If you are stuck with a landscape that requires a lot of water (such as large areas of bluegrass with spray irrigation) you should at least fine tune your sprinkler system. This approach is kind of like putting lipstick on a pig (since your landscape will still “require” the same amount of water to be healthy), however there are some new irrigation nozzles such as the Hunter MP Rotator that can be much more efficient at delivering water where it’s needed. At the very least, these upgrades could be a stopgap measure until the landscape can be renovated.
Remove large areas of high water use bluegrass and lawns, and replace with native or drought tolerant plantings. A renovation of this sort will make the biggest impact by far. You can covert your landscaping from one that requires a lot of water to remain healthy, to one that requires minimal water and still looks beautiful.
So there you have it. The drought is here to stay. Colorado is a semi-arid climate that will remain dry. While tweaks and minor changes to irrigation systems can provide temporary relief, landscaping that requires a lot of water to stay healthy will always struggle in Colorado and the best approach is to install drought tolerant landscaping from the start, or renovate your landscaping to plantings that require less water.
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
The problem with most water features is that they are high maintenance. While a natural looking pond can be beautiful, they are difficult to construct and can require quite a bit of maintenance. If that maintenance is neglected, or the pond is not constructed correctly one is left with pond that leaks, one does not look natural, or lacks the proper balance of plants, fish, and filters to keep the water clean.
