Infographic – How to Benefit From a Water Efficient Landscaping Renovation
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
20 Trees to Plant for Amazing Fall Color in Your Landscape
The Colorado Front Range has some of the best fall weather to be had in the United States. When it comes to interesting fall foliage color however, Colorado lacks the abundance of color that can be found in other parts of the country. But with the right choice of trees you can enjoy some wonderful foliage fireworks in your own backyard.
Serviceberry
Serviceberries are beautiful tree-like shrubs. They offer great spring flowers, edible berries that attract birds and beautiful fall color. They are also good choices for water wise landscapes.
Autumn Brilliance Serviceberry – Amalanchier x grandiflora 12’ Ht x 10’ W
Shadblow Serviceberry – Amalanchier canadensis 12’ Ht x 10’ W
Crabbapple
The popular ornamental trees are renowned for their their spring flowers, but these crabapples provide excellent fall interest as well.
Indian Summer – Malus ‘Indian Summer’ Orange-red fall color. 18’ Ht x 18’ W
Lancelot – Malus ‘Lancelot’ Yellow-gold fall color. 10’ Ht x 8’ W
Prairiefire – Malus ‘Prairiefire’ Orange-red fall color. 20’ Ht x 20’ W
Spring Snow – Malus ‘Spring Snow’ Yellow fall color. 20’ Ht x 20’ W
Ash
Autumn Purple – Fraxinus Americana As if it glows from within the center of the tree, this Ash is a sight to behold. The color is a mixture of gold to bronze-purple. 50’ Ht x 30’ W
Fall Gold – Fraxinus nigra The bright yellow gold of this tree is great against a crisp blue Colorado fall sky. 40’ Ht x 25’ W
Ornamental Pear
You can find these often planted along streets and in commercial landscapes. They provide spring flowers and fall color in relatively compact form.
Autumn Blaze – Pyrus calleryana ‘Autumn Blaze’ Orange red fall color. 30’ Ht x 25’ W
Chanticleer – Pyrus calleryana ‘Chanticleer’ Orange red fall color in an upright form. 35’ Ht x 15’ W
Cottonwood
Just like their cousin the Aspen, Cottonwoods are known for their yellow gold leaves. Although they are not recommended for residential yards due to their size and tendency to sucker, they are wonderful in large areas with native planting schemes, especially in wetter areas like drainages and ravines.
Plains – Populus sargentii 60’ Ht x 50’ W
Narrowleaf – Populus angustifolia 75’ Ht x 40’ W
Lanceleaf – Populus acuminate 50’ Ht x 30’ W
Maple
These maple trees will provide great red to orange-red color for your landscape. The Autumn Flame is gorgeous, but it can suffer chlorosis in our alkaline soils. Amur and Tatarian are the most fool-proof choices for our soils and climate.
Amur – Acer ginnala 20’ Ht x 10’ W
Bigtooth – Acer grandidentatum 25’ Ht x 25’ W
Autumn Blaze – Acer x fremanii ‘Autumn Blaze’ 50-40’ Ht x 30-40’ W
Tatarian Maple – Acer tataricum 25’ Ht x 20’ W
Oak
Several of the Oak species are wise choices for Colorado Front Range climate and soils. And a few of these offer nice fall foliage as well.
Chinkapin Oak – Quercus muehlenbergii Yellow fall color. 35-50’ Ht x 35-50’ W
English Oak – Quercus robur Golden yellow fall color. 40-60’ Ht x 30-40’ W
Northern Red Oak – Quercus rubra Bronze to wine red fall color. 40-60’ Ht x 40-60’ W
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.
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The 5 Hottest Current Trends in Landscaping
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.
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Drought of 2012 vs. Drought of 2002: Time to Rethink Landscaping Again
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.
Outlook Does Not Look Good
According to the National Weather Service Climate Prediction Center, the U.S. Seasonal Drought Outlook doe not look promising, although some improvement may occur in southwestern Colorado:
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.
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Important Summer Landscape Maintenance Tips
What a summer we are having- wildfires, heat, and drought. Hopefully you have already renovated your landscaping to make it more adapted to our climate. The old “imported” landscaping look of 
bluegrass and high water-use plants is really showing it wear in this heat.
Assuming you followed most of the suggestions in my spring landscape maintenance tips, you got the summer started on the right foot. This will allow you to relax a little more over the summer to enjoy your landscape and barbecues with family and friends. But with summer is full swing and the west abound in hot temperatures, there are a few important landscape maintenance tasks that you will want to keep up with.
Key Dates / Weather Considerations
- The month of July: July is Colorado’s hottest and driest month. Take a look at the bar chart below showing the spike in temperature during July. This means that watering will need to be increased for bluegrass lawns and even many of the xeriscape plants.
- On average, we also actually see a spike in precipitation in July. But this is usually due to large afternoon storms, rather than consistent rainfall. We may go 2 weeks with 100 degree temperatures and no rainfall. Then there may be afternoon monsoon storms for 3 days in a row. It is important to monitor the moisture that your plants are receiving, but also watch for flooding and erosion that can occur in bed areas, and around walls, patios, and other hardscapes from these large storms.
- Hail can also be a factor (fingers crossed that it won’t), although I have found that the more native and regionally adapted the landscape is, the more it can recover from being decimated by hail. Plants seem to have evolved to expect hail in this region of the country.
Trees and Shrubs
- Monitor soil moisture. Provide supplemental watering and/or increase watering times on your drip irrigation system during hot, dry periods.
- Watch for pests and manage them accordingly, as many insects will attack plants when they are under stress from drought.
- Assess which of your plants are under stress from the heat- Consider moving plants that prefer more moisture and shade to a different, more shady location so they will be happier next year. But don’t do any transplanting now, it’s too hot- wait until late August at the earliest.
Perennials and Ornamental Grasses
- Ornamental grasses do not need much care during this period. Most of them should be thriving right now- enjoy the beauty, movement, and texture that they provide!
- Some perennials that are done flowering can be dead-headed to promote another round of flowers!
- Watch soil moisture closely, and add additional mulch around the base of plants if mulch has thinned out. This keeps the roots cool and helps preserve soil moisture.
Lawns
- Hopefully you have followed the 7 Principles of Xeriscape, and have limited your turf areas to those places that are most practical. This is the season where it really pays off (in improved aesthetics, reduced maintenance, and lower water bills).
- You will probably have to increase watering during the middle of summer. However, keep in mind that many turf grasses such as bluegrass will go dormant (the lawn will turn brown) if not extensively watered. This does not mean that the lawn is dead. It has simply gone dormant, and will green back up when temperatures cool and it receives more rainfall.
- Some weed species can be a problem in lawns during mid-summer, especially if the lawn has gone dormant or partially dormant- the weeds do not have much competition. Consider using weed control products and herbicides. Always handle these products carefully, and consider organic options if they are available.
Planting Beds
- Weeding is important during the summer months. Small weeds can easily be pulled, but if they are let go for several weeks they will grow fast in the warm temperatures, making the job much more difficult. It can be pretty easy, and even enjoyable. Just grab a glass of wine in one hand, and stroll through your garden pulling the small weeds before they get out of hand.
Other
- Protect your bees, butterflies, and hummingbirds. Bees will be abundant on your flowering plants- in many areas of the country bees are disappearing, so be sure not to use pesticides on any areas that my impact your bees!
While spring and fall are probably the most critical seasons for landscape maintenance, summer is a time to relax and enjoy your landscape while trying to keep cool. If you spend a few evenings or cool mornings following some of these summer landscape tips, you will achieve piece of mind and your landscaping will be in great shape.
This is the official blog of Outdoor Design Group, Colorado Landscape Architects. For more information about our business and our services, click here.