A Natural Arbor

Landscape Smart : Episode LDS-808 -- More Projects »
Recycling is not just for cans and newspapers. You can use twigs, branches and other pruning leftovers to create a natural bentwood arbor. And that worn-out patio furniture that you're thinking of throwing out can be transformed into an unusual conversation piece.
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Figure A
Homeowners Stephen and Lea Duran have a rustic, natural backyard (figure A) with a dirt path leading to a flagstone patio, but there's nothing there to attract visitors to the path. So landscape designer Scott Soden builds a natural arbor and extends the arbor to help define the path. He covers the path with aromatic cocoa bean hulls and enhances the area with a combination of vines and ferns. Finally, he covers the old wicker loveseat and chair with sod and moss, giving a creative look to the patio.

Soden estimates that a professional would charge about $1,200 for the pathway and arbor, but do-it-yourselfers can use existing branches from their yard and buy mulch for only $75. This project is rated a 2 on a difficulty scale of 1 (easy) to 5 (difficult ) and can be completed in two weekends.

Step One: Preparing for the Arbor

If the site you've chosen is surrounded by trees, be sure you have seven to eight feet of clearance for headroom under the archway of the arbor and allow a width of at least four feet. When selecting branches to prune for your arbor, Soden offers these recommendations:

  • avoid coniferous trees, such as pines and redwoods, because they are not supple and pliable;
  • choose pliable trees and bushes, such as privet, birch, willow and mulberry; and
  • use fresh wood within 24 hours of cutting.

Wear gardening gloves and use sharp pruning shears. Find long twigs and snip them off at the base. They don't have to be thick; they will have more strength when bundled. Remove all leaves and any off-shoots.

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Figure B
Select two of your longest and thickest branches and bundle them by twisting them together and securing them with bailing wire. Add a couple more branches for support (figure B). Attach some more twigs to one end to increase the length of the bundle to about 14 to 16 feet. Use this technique to create four bundles. Although they don't have to be identical in appearance, make sure they're the same length.

Step Two: Creating the Arbor

When bending branches, Soden says to work with the wood; overextending it can make it snap in two. If the wood is not pliable enough, you can make small cuts where you want it to bend.

Hammer four 4-foot-long pieces of rebar into the ground, two feet deep, where you want the arbor posts to go. Place one on each side of the path, at least four feet apart, and the other two parallel to, and 16 inches, from the first ones.

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Figure C
Tie the bundles of twigs to the rebar with wire to make the upright posts. Carefully take the end of one branch, bend it toward the opposite post and attach it with wire (figure C). Continue bending branches one at a time and wrapping the bundles with wire to maintain the curved arch. Weave in more branches to achieve the look and thickness that you want.
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Figure D
Use the same technique to bend the other two posts, making sure that the arch is the same height as the first one. Once all the posts are in place, beef them up by swirling more branches around them for an attractive look. Figure D shows the completed arches.
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Figure E
To create the crosspieces, use branches of varying lengths to link the two parallel arches and to reinforce the gently curving arched shape. Fill in the bottom two feet with a solid wall of branches hammered into the ground and reinforced at the top with a crosspiece and wire (figure E). Use your imagination in placing the upper crosspieces; for instance, you could make an "X" or other geometrical design between the parallel posts.

Step Three: Filling in the Path

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Figure F
To help define the path and make it look like an extension of the arbor, wire several long twigs to one of the posts. Hammer some branches into the ground to make pegs along the path's edge, and weave the long twigs around them. Follow the curves of the path, and hide the ends of the branches behind the pegs (figure F). Attach the junctures with wire.
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Figure G
Rake out a couple of inches of finely chopped wood chips and top it with an inch or two of cocoa bean hulls. This type of mulch smells like chocolate and costs about $10 per bag at landscaping supply stores. (Caution! If you own a dog, use another kind of mulch. Cocoa bean mulch is appealing to dogs, but it can kill them. Only two ounces of cocoa bean mulch can cause vomiting and diarrhea in a 50-pound-dog; more than 9 ounces is fatal for a dog that size.) Smooth out the hulls to complete the path. Figure G shows the completed bentwood arbor and cocoa hull path.

Step Four: Creating Living Furniture

The Durans were throwing away some old wicker patio furniture, so Soden decided to "reupholster" it with sod to make living furniture for their patio. He used dwarf fescue sod (about $4 per sheet) and Irish moss ($12-13 for a flat) for the seat cushion.

Begin by watering the furniture to create a moist environment for the sod. Spread a light layer of mulch onto the back side of the sod to help hold in moisture. Then lay strips of sod over the furniture, and cut the strips with a serrated knife so they conform to the shape of the furniture. Use bailing wire like a needle and thread to attach the sod to the wicker.

Place a strip of Irish moss on the seat for a fun contrast, and for a whimsical touch, plant a flower or two into the seat moss.

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Figure H
These living sculptures (figure H) won't last forever, but if they get 6 to 8 hours of sunlight each day and are watered daily, they should last for a season.

Planting: A Natural Arbor

To brighten up the woodland setting of the bentwood arbor, Soden chose plants that do well in semi-shade: primroses for color, ferns for texture and contrast, nandina for winter interest and blooming vines to train up the arbor. These include:

  • Abutilon 'Tangelo Tangerine Yellow', Zones 9-10, for the arbor
  • Western sword fern (Polystichum munitum), Zones 3-8
  • Asparagus fern (Asparagus densiflorus), Zone 11

Guests
Scott Soden
Landscape Designer
Artscapes
603 Alameda de Las Pulgas
Belmont, CA 94002
Phone: 650-591-1222
Website: www.artscapesonline.com
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