waterfall landscape design
waterfall landscape design
waterfall landscape design
waterfall landscape design

Landscape Design and Fire Mitigation in Light of Boulder Fire

Last week, I was breathing smoke and watching ash falling on my yard from a major fire in Four Mile Canyon near Boulder. This fire was particularly devastating, with at least 169 homes lost, last I heard. Of course, any time there is a fire, it brings to mind fire mitigation. Bonnie Driscol asked me for some of my thoughts on that….

Fire-Safe Landscape Design: Boulder Fire Underscores Necessity Of Fire Mitigation
by Bonnie Driscol

As I write this, thousands of people have been evacuated from their homes due to the four Mile Canyon wildfire outside of Boulder, Colorado. For some of these evacuees, the survival of their home could ultimately come down to how well their home was protected from fire in advance. Homeowners who are considering a landscape design project would do well to pay attention to fire mitigation at the same time. In the words of Tom Altgelt, a landscape designer in Boulder, “It’s fortunate that fire mitigation is easily combined with designing exceptionally beautiful gardens.”

At first, fire mitigation can seem like a loss because it is often necessary to take out trees or other plants around the home. However, by focusing on the wide range of fire-wise features and open areas that can be artfully designed around the home, a new landscape design can be both safer and also more beautiful. Tom Altgelt notes, “Rock or paving features, water features, low-flammability perennial gardens, and certain shrubs can be used to create a wonderful ambiance while simultaneously protecting the house from fire.”

The first priority is to reduce fuel sources close to the house and other structures. This can be accomplished by designing beautiful landscape features from noncombustible materials such as rocks, paving, bricks, concrete and water. Next, fire-resistant plants can be chosen, that are generally low in resins or saps, grow near the ground, and produce minimal debris (leaves, needles, etc.) Tom continues, “Fire-resistant materials should also be considered for outdoor furniture, decking, and play structures near the home.” Maintenance such as mowing, raking, and watering is also important, of course, to keep the fire risk minimized. The amount of necessary fire mitigation can vary tremendously depending on the fire risk for individual homes.

Here is one example Tom relates: “In our Boulder Shangrilah landscape design project in the Boulder foothills there was a massive stand of ponderosa pine, going up a steep slope toward the house, creating the potential for a fire to sweep quickly up the slope toward the house. The extra danger here was that if a fire burned the large structure down, it could never be rebuilt because such a huge house would not meet the new building requirements. So we took exceptionally great pains to mitigate the fire danger, removing most of the conifers and making sure that the conifers we left in place had the lower limbs removed so the fire could not easily climb up the tree.”

Tom also recalls a Mountain Living Dream Home landscape design project: “We made sure not to plant more than three conifers together without at least a 20 foot jump to the next group of conifers. This was to be sure we did not build a ladder to bring a fire toward the house.”

And here’s another interesting example Tom gives: “When I was working on a big resort in Keystone with OZ Architecture, we marked many of the conifers to be cut down. Conifers contain pitch which turns them into a roaring torch, making them a serious fire hazard. In their place we planted aspen trees, which actually dampen a fire rather than helping the fire spread. One can even put in groves of aspen trees as fire protection. Aspens are not as useful at a lower elevation, but there are certain other deciduous trees which will work as well to buffer a home from fire.”

From Tom’s experience, he says, “Ideally, of course, fire mitigation is a part of the initial landscape design planning stages, so the master plan will already encompass fire mitigation basics.” If a landscape design is already completed without good fire mitigation, it can be more difficult to create an optimal design with only minor modifications. However, even in such cases, quite often there are many attractive possibilities for enhancing the beauty of the garden while simultaneously making it more fire-resistant.

It is wonderful that the practical goal of fire mitigation can actually support the highest aesthetic goals, also. In Tom’s words, “Fortunately, with careful planning, a firewise garden can also be the beautiful garden of your dreams!”

Boulder Landscape Design with Massive 24-Ton Boulders

We are currently working on a very large, even spectacular landscape design project. One landscape feature we have already created is a rock feature involving boulders weighing up to 24 tons.

Here is one of the large boulders for this landscape design before installation.

Here is one of the massive boulders for this landscape design before installation.

The installation was a technical challenge. We weren’t even sure if we could get the crane in there, and we had to demolish part of the house before the crane could get through. Fortunately, the house was going to be demolished anyway. The crane had to lift the truck carrying the boulders over a bridge because the truck was too heavy to cross the bridge. We also were not entirely certain how deep we could dig without hitting the water table, but fortunately we had no problem with that.

Below you can see one of the giant boulders being set into concrete. Whenever you see a really massive boulder in a landscape, if it is properly installed, generally about 1/3 to 1/2 of the rock is under ground so that it is securely planted in the earth. In this particular case, we added concrete underground, connecting the rock to the concrete foundation with heavy rebar, grounding the rocks securely even though there is less than 1/3 of the rock underground on the side away from the house. In this way, we are preserving the looming height of the rock which juts dramatically upward 14 feet from the ground on that side.

We handled these 24-ton rocks very gingerly because they are moss rocks and the client really wanted these mossy surfaces to be undamaged by the installation process.

Here is the same boulder being set into concrete re-enforcement.

Here is the same boulder being set into concrete re-enforcement.

And in the picture below we can begin to see what the final product will look like from the house. From this side, they present a much more modest six foot tall form, which is something of an optical illusion. As you walk around the rocks, you suddenly find the rocks are 14 feet tall on the other side.

Not only will this provide a main focal point from all aspects of the property, but it will also provide a backdrop accenting different forms of the garden.

Here is the final product which will be seen best from the house.

Here is the final product as seen from the house.

I always enjoy projects that involve inclusion of massive boulders that incorporate the surrounding landscape and nature with what has been created within.

Private Back Yard Garden Near Chautauqua

Bendele Garden Water Photo

Chautauqua Area Garden Design

This landscape design is a tiny little garden near Chautauqua Park in Boulder, Colorado. The Chautauqua area has been a great area for us: we’ve done at least a half dozen garden designs, ranging from really big to very small, in the Chautauqua neighborhood. A big part of the garden is water, and we also put in a nice arbor.

In the foreground above on the left side of the photo, you can see a portion of a very interesting bridge-like construction across the water with three panels, perpendicular to each other, with the big panel going crosswise. It’s kind of a Japanese motif of crossing water. The owners cross the water at least a couple of times every day, when they go from their house to their garage, and when they come home.

And here’s another shot of this special private garden:

Bendele Garden Deck Photo

Garden Design Deck Photo

Landscape Design Planning:

This is a new project I am working on, which I have dubbed the “Boulder Shangri-la”. It is a project that could not be built today, because it’s very large, and Boulder does not allow building that size anymore, but as a renovation it can be done. It’s right up against an extraordinary cliff rock formation, so when you step out of the back of the house, you are 30-35 feet from a sheer vertical rock wall. In Feng Shui, this formation is called a “dragon’s back” and usually monasteries are located in such places. The cliff ridge forms the back edge of the property. It’s very dramatic. Much of the rest of the property is on a steep slope. Coming up the driveway to the house, you get an amazing overview of Boulder and the plains. As the driveway goes up the steep slope, it makes a hairpin turn and doubles back, and then you see above you the house along the cliff. From a distance the house literally looks like a Tibetan monastery up there against the cliff. There are also some very large, beautiful Ponderosa pines among many smaller ones for which we will be doing fire mitigation.

I am really excited about this project. I was fortunate to be introduced to the general contractor at a friend’s party, and it just happened that he had also looked at some landscape design work I had done near Chautauqua in Boulder. This is the first of several posts I plan to write about this project.

Here is a photo of the entrance to the property as it is now:

Boulder Shangri-la Entrance Before Design Changes

"Boulder Shangri-la" Entrance Before Design Changes

We want to create an entrance that is really in keeping with this remarkable piece of property and the whole of the building and landscape architecture, which will be even more remarkable once we’re done with it! Here is a sketch I’ve done on tracing paper for the entrance design. In the background, you can see the same photo as above showing through the tracing paper, with changes and additions sketched on top:

Entry Gate Design for Boulder Shangri-la

Entry Gate Design for "Boulder Shangri-la"

More to come!

Denver Landscape Design: Which Of These Three Universal Errors Is Most Important For You To Avoid?

Here’s another article by Bonnie Driscol which includes an interview with me. She asked me what the most common mistakes are that I see in landscape designs around the Denver area. This was a different way of thinking than I normally use in my day-to-day work; I generally am focused on what we’re creating, rather than what we’re avoiding. However, it is true that certain types of mistakes cause big problems for people–including very expensive problems, and ones that limit the potential for a beautiful, deeply satisfying garden design. Those problems are certainly worth avoiding by applying the “best practices” of landscape design work.

Although we started out thinking in terms of mistakes made in the Denver/Boulder area, these turned out to be universal errors, in that I’ve seen these same mistakes made all over. Anyway, here’s the article:

Denver Landscape Design: Which Of These Three “Universal Errors” Is Most Important For You To Avoid?

by Bonnie Driscol

There are few large investments that can yield great joy which endures and grows through time, and one of these is a beautiful garden. Because it is such an important investment, it is essential to avoid common mistakes that can be expensive and can reduce the “return” on that investment, which is the joy and delight that can result from a truly inspired landscape. According to acclaimed landscape designer Tom Altgelt, “In my sixteen years as a landscape architect and designer in the Denver/Boulder area, there are certain errors that I have seen over and over, which can easily be avoided with good planning. I’ve seen these universal mistakes made in New England and Europe as well, during my many years of practice there.” These mistakes include designing for the warm seasons while neglecting fall and winter, beginning a small project without having a master plan, and assembling a group of professionals which lacks good teamwork.

First, even many seasoned designers make the misstep of designing only for the warm seasons. It’s an easy error to make, because people typically pay most attention to the flowers in a landscape. However, if the fall and winter|winter and autumn seasons are overlooked in the design process, the garden may appear bleak and desolate through those cold months, which may be just when we need beauty and joy the most. Altgelt explains, “This is especially problematic in our climate here in Denver, Boulder, and throughout Colorado, with harsh weather off and on for almost half the year. Many of these winter days we could actually derive great joy from a beautifully designed garden, not only by viewing it from indoors but by being in it.”

Altgelt lists four elements for creating a beautiful four-season landscape: sculpting the earth itself; creating rock formations as though they are emerging naturally from that sculpted earth; utilizing evergreen plants; and also including deciduous plants which show interesting colors and shapes after they’ve lost their leaves. Altgelt says, “Combining these four elements artistically will create a beautiful fall and winter garden, while synergistically adding to the spring and summer interest!”

“The second mistake I often encounter is that people typically design in a small-scale, fragmentary way, rather than creating a master plan first.” If a homeowner only has a budget to do one part of the landscaping right now, that one piece needs to fit with the long-term vision. Otherwise, it could end up being very expensive.

“A good design can be executed initially with very inexpensive materials if the master plan is thought through in detail,” says Altgelt. For example, a patio or walkway can be put in using crushed rock and later changed to brick, sandstone, or precast concrete pavers. If you want to add a different surface later, then initially you would be wise to take into account that you’ll be adding three or four inches in height down the road. So, you initially set the patio lower so that later you can raise it up without creating an issue of the patio being at a higher level than the doorway. However, if you didn’t think it through in advance, when you are ready to upgrade your patio you would have to first remove a bunch of work, making the end result more costly. Tom points out, “With good planning, you can save money by starting with a cheap solution, and then later you can still do a beautiful expensive patio without paying extra to remove the first solution.”

The third most common mistake Tom sees, for those who hire a team to help them, is assembling the wrong team. “To assemble a good team, of course you need to see samples of each individuals’ work and get references, but it doesn’t end there. The key ingredient, which is often missing, is teamwork.” How they communicate and work together, how they inspire each other – their “chemistry” – is crucial.

How do you know whether a team has good teamwork? “One key to good teamwork is: do the professionals truly listen to their client?” The design professionals may need to help the client express his desires for his garden, in a spirit of co-creation. “Without that co-creative relationship with the client, the landscape designer is more likely to fall back on standard solutions that he has done multiple times in the past, rather than designing a truly inspired work of art that is specific to the people and place the landscape is being created for.” For the best outcome, the landscape contractor and the architect (for new construction and major remodeling) also need to be involved with the landscape design process. Ideally, this team is put together at the very beginning – even before the house is designed.

Altgelt sums it up: “By avoiding these three common mistakes, not only can the homeowner save money, but the end result can be an artistic expression of the homeowner’s deepest dreams for his or her garden.” What a great way for an investment to pay off!