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Tips to succeeding with Manzanita in Portland Residential Landscapes 

Tips to succeeding with Manzanita in Portland Residential Landscapes 

Drought tolerant landscaping in Southeast PortlandManzanita (called Arctostaplylos – Arc toe staff eye loss) is the new cool darling plant here in Portland. The reasons why are numerous, unique “new” plant, drought tolerance, attractive in winter and all year, and there are now many diverse shapes and sizes to work with that will survive here. Years ago I only used this plant for a plant collector garden because they knew it was a crap shoot as to whether it would survive at all.   

As a Portland landscape designer I want plants that will serve many purposes in my designs. For people who are done with the overuse of Rhododendrons and Azalea and want drought tolerant plants, Manzanita is the perfect plant. Before you fall in love, I want to give you some tips for succeeding with Manzanita in Portland. They have requirements that must be met if you want them to thrive. 

Please see my previous blog “Portland Landscape Designer Advocates use of Manzanita in Xericscapes”.

Tips for succeeding with Manzanita in Portland 

Select the right site, conditions and plant companions 

Most are intolerant of summer water….clients must understand that they cannot coddle these plants, they cannot plant annuals with them for summer color, they cannot fertilize, they cannot water these plants after they are established or they will die.

Ground cover manzanita in Raleigh HillsPlant on a berm 

In many Portland landscapes planting on a berm will be necessary to avoid root rot. You will see bermed soil areas here even in parking strips. Portland parking strips (the 4’ wide ones) are a popular place for many of the new smaller types of Manzanita and for drought tolerant or xeric styled plantings. Most of the Manzanita I am using are too wide for a 30” parking strip. 

Planting companions

Planting companions must have the same no water requirements because it’s hard to remember not to water one plant and that you must water the one next to it. If any kind of auto irrigation is used the first summer it must be disconnected, dismantled, hell-dismembered so no one accidentally waters that second summer.   

I select companions from Mediterranean or NW native plant palettes. Some mid west native prairie plants also work well with Manzanita. Herbs, ornamental grasses and xeric perennials like Penstemon or ice plant are easy companions and Heather (Calluna Vulgaris types) are one of my favorite for texture contrast.  

Buy small plants 

Drought tolerant landscape design, manzanita shrub in North PortlandIt’s best to buy small plants and they will establish faster than a larger plant with a higher survival rate. Large sizes of these plants are not available anyway. Many of these plants will be available in a 4” pot or perhaps a quart sized pot. Smaller plants make more sense in this case but don’t expect them to be inexpensive. You are paying for all the research and extensive work to create these new plants. 

Select the right Manzanita 

The trial and error approach for picking which one to buy and where to plant it is going to be very frustrating. There are quite a few new plant types to pick from and some grow very fast, some slow. Some may be pruned hard because they have a burl (what’s a burl?) and others would be ruined with such treatment. Your Portland landscape designer needs to be an expert or have access to one. If you are on your own, buying from Cistus Nursery or the retail store Xera Plants, Inc. is the best way to get the expertise you need from their very knowledgeable staff.   

I talked to Alana Chau at Cistus Nursery. Here is her list of plants that will be available that I especially liked. 

 Arctostaphylos hookeri ‘Green on Black’  18” high and can handle some clay soil. 

Arctostaphylos × media ‘Martha Ewan’ is a nice size maturing at three feet tall and it can be tip pruned. It gets wide so give it room to be 4 or 5 feet wide. 

Arctostaphylos Stanfordiana ‘Mills’ or A x ‘White Lanterns’ both at 4’ tall 

Arctostaphylos Dr Hurd’ is a curvaceous 8′ to 10’ tall small tree and is planted at the entrance to Cistus Nursery 

Arctostaphylos  mewukka or Arctostaphylos patula can be pruned heavily. (They have a burl and once established they can be pruned back to the burl, for non horticultural nerds just know this means you could plant one of these closer to your walkway than many of the other varieties because the size could be controlled without ruining the appearance of your plant.) 

(We designers get excited about plants who fit into a small landscapes so we might be more excited that this burling option than you are). 

 My manzanita guru, Paul Bonine explains about burls in his article in Pacific Horticulture, Arctostaphylos for Pacific Northwest Gardens “Some Arctostaphylos species develop an enlarged area called a burl at soil level; new shoots emerge from the burl following fire or extreme drought, or from extensive pruning to rejuvenate a plant in the garden.”

Drought Tolerant Landscaping with Manzanita Plants in Portland

Drought Tolerant Landscaping with Manzanita Plants in Portland

Why am I excited about using Manzanita in my Portland landscape designs? 

Manzanita shrub in Arbor Lodge landscape - Landscape Design in a DayIt’s the water

To advocate the use of Manzanita is to advocate the use of drought tolerant plants. Happily we landscape designers are encountering more clients these days who want a low water landscape or want a completely drought tolerant yard. I can advise about the site conditions drought tolerant plants require and select attractive plants that meet the curb appeal test in addition to drought tolerance.   

Unique look 

Manzanita flowering in Woodlawn neighborhood of Portland - Garden DesignIt’s a new look for the landscape. My younger clients are done with  rhododendrons and azaleas, which are somewhat over used here. While Manzanita has attractive flowers, it is the whole package, foliage color, shape of plant, bark color and flower that is creating the popularity. I’m especially happy with the boost these plants give to the winter landscape. 

Fusion of modern style with NW Natural  

These plants are too naturalistic for formal landscapes but they look great with modern and craftsmen homes.  Style-wise Manzanita fit nicely with NW natural,  Mediterranean or even a southwestern look.  We get strong foliage contrast with  leaf blades (Yucca or ornamental grass), tiny needles like dwarf conifer,  heather (calluna type), lavender or fat leafed succulents like hens and chicks or sedum palmeri or other sedums.

New kinds of Manzanita to use in landscapes 

Drought tolerant Manzanita in Portland garden design as foundation plant.The fact that we now have more than one kind of Manzanita we can use can be laid at the feet of a handful of people who have crossed different kinds of Manzinita to produce plants that can thrive in our rich Willamette Valley soils.  They then tested the plant in different soil conditions and identified the plants that can handle life in an non irrigated garden or landscape.

When I started my Portland landscape design practice in the 1990’s there was a native Manzanita tree from the Oregon coast that “sometimes” survived here. They are so beautiful that I was tempted.  Still “sometimes” was not good enough for my designs.  I needed cold hardy Manzanita ground covers, shrubs, and small trees that would thrive here in the Willamette Valley and there weren’t any. Now I have them!!! 

Less weeding 

This benefit could take some time to realize.  Manzanita leaves contain a substance that discourages weeds. Leaves that shed from the plant should be left in place. It takes several years for these small leaves to build up enough of the substance in your soil to be effective. 

Pruning tip

Portland Residential Landscape DesignerrOne of the common mistakes with Manzanita is to underestimate the width of the shrubs and small trees. Most cannot be pruned heavily and can be rendered so unattractive by pruning that tries to contain them, they will be removed. If you have no pruning skills (and most people don’t) be sure to place these plants where they have room to mature with yearly tip pruning only. 

Where to find these plants? 

While Xera Plants, Inc. and Cistus Nursery are the primary resource for retail, there are the Hardy Plant Society Sales (spring and fall) and tried and true mail order plant resources. If you are wanting drought tolerant landscaping and need a landscape designer contact me, I love to design with Manzanita. 

 

Montavilla Bungalow Landscape Design for Entry

Montavilla Neighborhood in Portland Oregon Before Landscape Design in a Day

Montavilla Bungalow Landscape Design for Entry

This NE Portland bungalow landscape design project was a joy. My charming client had a new home that was beautifully updated on the inside but the landscape was a blank canvas and a bit rough. It needed a landscape design to address new walks, driveway and create strong presence. The large houses on either side dwarfed this sweet house. Look at the great lines of the porch!! I loved this house at first sight.

Client wish list

New driveway, low maintenance plantings, no lawn front yard, low water plantings and lots of colorful long season plants.

Landscape designer view

Everything, including front walk and driveway, needed to be carefully designed to enhance function and curb appeal. The proportions of the driveway and front walk required updating because life has changed a lot since 1940. Middle class homes in the Montavilla neighborhood had cramped narrow walkways and no pedestrian access to the front door from the driveway. People parked their one car in the driveway and entered their home through a side door. Usually the man of the house came in and hung his coat and hat on a peg on the basement wall and came in to the house via the kitchen. We are talking “Father Knows Best” era here.NE Portland Montavilla neighborhood after Landscape Design in a Day

I felt the house needed to be integrated into its land, that it was cut off and floating. We needed multiple planting levels supported by an informal rockery style wall. The levels are softened by the plantings which keeps the whole landscape integrated and inviting. Here is a designers’ trick, planting the area in front of the wall is an invitation and keeps the wall from feeling like a barrier.
Portland Residential Landscape Design in Montavilla Neighborhood

Wall plantings

Erysinium – Wallflower ‘Wenlock Beauty’ on the right, Sedum ‘Purple Emperor‘ on the left and Thymus Praecox – Red Creeping Thyme in foreground.

Driveways

I’m very picky about driveways. They need the right proportions to be a functionally usable space but still fit into the landscape not dominate it. I want to make it comfortable to get in and out of the car with groceries, kids and pets without stepping into mulch or plantings. I hate having to negotiate through awkward uncomfortable spaces.

Client Comments

“I hired Carol to create a design for my front yard and driveway replacement and to check in and work with the contractors during the installation process. Carol recommended Donna Burdick’s company D & J Landscape Contracting to implement the plan and I’m glad I chose them as well. Donna and Carol have worked together for years and speak a common language which made for a seamless experience. Carol is very flexible and can work with wishes of any level of detail. I had mostly vague, general ideas and preferences.  She was able to take those and come up with something that I loved as soon as I saw the first rough layout.”  Denise L.

Plant List

Heather – Erica carnea ‘Adrianne Duncan’

Echinacea – Cone Flower

Daphne transatlantica ‘Summer Ice’

Berginia ‘Baby Doll’

Heuchera ‘Sugar Berry’

Sedum ‘Voo Doo’

Sempervivum-Hens and Chicks ‘Royal Ruby’ and ‘Carmen’

Salvia officinialis ‘May Night’

Vaccinium ‘Sunshine Blue’ Blueberry

Carex morrowii – Sedge Grass ‘Ice Dance’

The parking strip tree is Parrotia persica – Persian Ironwood and the Gingko trees are ‘Jade Butterfly’.  I selected a dwarf tree so the colorful sun loving plants under the trees will thrive.

 

Landscape Design:  Carol Lindsay, Landscape Design in a Day

Landscape Installation:  D and J Landscape Contractors

Concrete Contractor:  Kerry Becker Concrete Company

 

 

 

 

Colorful Four Season Plant for Portland Residential Landscape Designs

North Portland residential landscape design for year round colorColorful Four Season Plant for Portland Residential Landscape Designs

I like to use Nandina as a colorful four season plant for my Portland landscape designs.

Advantages

The foliage is colorful year around.

Very low maintenance plants if you know the cool pruning tip.

They are easy to prune successfully so you can keep them for years.

Nandina varieties fit multiple diverse needs in the landscape because they can be small (18″ to 24” tall) or up to 8 feet tall.

They thrive in half or full day sun.  Deer don’t typically eat them.

Colorful Four Season Plant for Portland Residential Landscape DesignsDisadvantages

People prune it wrong and then it’s so ugly they remove them – this is so easy to avoid.

It’s not a successful shade plant and will look leggy and sparse in the shade.  They will look so bad they will be removed.

People think Nandina is drought tolerant and they don’t water it in the summer……….this ends badly.

Nandina (from China) doesn’t feed our native insects; therefore, overusing it limits food for our native bird population.  I like to select at least a few native plants for companions.

Is this plant overused? Some garden designers snub the Nandina plant because it is used in commercial landscapes. Nandina is useful to my Portland residential landscape design clients who want low maintenance landscapes.  With the right plant partners Nandina can sparkle in a home landscape.

North Portland residential landscape design for year round colorHow I Use Nandina in Garden Designs

Nandina domestica – Heavenly Bamboo (not related to Bamboo)

There is a variety of Nandina to fit every landscape:

  • 6 to 8 foot tall  ‘Moyers Red’ or 4 to 6 foot tall ‘Plum Passion’ dress and soften an expanse of fence, hide the hot tub or garbage area nicely
  • 2 to 4 foot tall ‘Sienna Sunrise’, ‘Moon Bay’ or ‘Firepower’ work well in foundation plantings and entry areas.

Use a tape measure on planting day, assume the size info on the plant tag is being modest and give your plant more room to grow.  Some varieties of Nandina will grow 3 to 4 feet wide.   To keep your Nandina from getting too wide, I suggest pruning out entire canes at the base of the plant once a year.  For varieties that are listed as 3 to 4 feet wide, plant it at least 30 inches off your path.

A new variety called ‘Blush’ is typically 24 inches tall and 18 inches wide. The evergreen leaves turn an intense claret red and hold their color for months, longer and redder than other Nandina. ‘Blush’ was designed for the southern United States where it is fully drought tolerant. In Portland, all varieties of  Nandina including ‘Blush’, requires irrigation in summer. Multiple articles on the net enthusiastically state ‘Blush’ is drought tolerant but they do not mean here in the NW.  In the high humidity of an Alabama summer I too am probably drought tolerant…..Mint Julep anyone?

North Portland residential landscape design for year round colorPlant Partners

I love to combine Nandina with textured or needled plants that contrast with the narrow Nandina leaves.  Dwarf conifers, (Pinus mugo ‘Sherwoods Compact’), heather  Erica carnea ‘Adrienne Duncan’ or ornamental grasses like  Opiopogon (black mondo grass)  work well.  NW native plants, like salal, sword fern and huckleberry give  contrast and good looks.  They also provide food for native insects and for our birds who must eat native insects for food.  Pairing Nandina with typical cottage garden plants disappoints my aesthetic; there isn’t enough leaf contrast.

How to prune Nandina

The key to success with Nandina is learning how to prune it which is all about thinning the multiple canes (or stems) of the shrub.  Read more in my next blog or check out this u tube video I found to get you started.

 

 

 

Modern Landscape Design Plants for Portland

Japanese Mondo Grass great for your modern landscape.Modern Landscape Design Plants for Portland

As a Portland landscape designer I enjoy helping clients who want modern landscape design plants.

While well crafted hardscape is the key element to a successful modern style landscape, plant selection and how they are used is critical.

Here are a few things I keep in mind.  Balanced plant repetition, contrasting textures and overall shapes of plants, full season interest plantings, and low maintenance plants.  Keep in mind that the typical plants for modern style are not great for wildlife because they lack diversity.  My designs consider the clients many unique interests. A modern style design can have wildlife friendly plants included.

Here are 10 plants that work well for modern landscape design and are fairly easy to find.

Modern Landscape Design PortlandNarrow Vertical Plants

Japanese Holly ‘Sky Pencil’ – Ilex crenata (pictured)

Italian Cypress ‘Tiny Towers’ – Cupressus semptervirens

Italian Cypress ‘Swane’s Golden’ – Cupressus sempervirens

Portland Landscape Designer likes Black Mondo GrassLow Edger Plants

Black Mondo grass   –  Ophiopogon planiscapus ‘Nigrescens’

Green Japanese Mondo grass  –  Ophiopogon japonicus

Cushion Bolax – Azorella trifurcata ‘Nana’ (Stepable Groundcover)

Hens and Chicks – Sempervivum

Other Grasses and Shrubs

Grama Grass ‘ Blonde Ambition‘ – Boutelous gracilis

American Switch Grass ‘ Shenendoah’ – Panicum virgatum

Nandina D. ‘Firepower’ – Nandina domestica (dwarf form)

Hebe (prostrate form) – Hebe Albicans ‘Sussex Carpet’  

If you are looking to update your design for a modern landscape, contact Carol and start your perfect outdoor space.