Companion Planting

The theory of companion planting is by placing beneficial plants together they help each other grow. Some ways companion plants help each other are:

  • Taller plants can provide shade for sun-sensitive shorter plants.
  • Vine plants cover the ground below taller plants for weed control, or to support vine plants.
  • Companion plants discourage pest, for instance onions repel some pests,
    while other companions, like marigolds, lure pest away from desirable plants.
  • Companion planting can attract beneficial insects to the garden, and improve flavor to some fruits and vegetables.

Below is a beginner’s guide to companion planting.  

Basil
Plant near: most garden crops
Keep away from: rue
Comments: improves the flavor and growth of garden crops, especially tomatoes and lettuce. Repels mosquitoes

Beans, Bush
Plant near: beets, cabbage, carrots, catnip, cauliflower, corn, cucumbers, marigolds, potatoes, savory, strawberries.
Keep away from: fennel, garlic, leeks, onions, shallots.

Comments: potatoes and marigolds repel Mexican bean beetles. Catnip repels flea beetles.

Beans, Pole
Plant near: corn, marigolds, potatoes, radishes.
Keep away from: beets, garlic, kohlrabi, leeks, onions, shallots
Comments: same as for bush beans.

Beets
Plant near: broccoli, brussel sprouts, bush beans, cabbage, cauliflower, chard, kohlrabi, onions
Keep away from: mustard, pole beans

Borage
Plant near:  squash, strawberries, tomatoes
Keep away from:   Spreads by seed!!
Comments: repels tomato worms. Improves flavor and growth of companions.

Broccoli and Brussels Sprouts
Plant near: beets, buckwheat, calendula, carrots, chamomile, dill, hyssop, marigolds, mints, nasturtiums, onions, rosemary, sage, thyme, wormwood.
Keep away from: strawberries
Comments: marigolds repel cabbage moths. Nasturtiums repel aphids.

Cabbage and Cauliflower
Plant near: broccoli, brussels sprouts, celery, chard, spinach, tomatoes.
Keep away from: strawberries
Comments: tomatoes and celery repel cabbage worms.

Cantaloupe
Plant near: corn
Keep away from: )

Carrots
Plant near: cabbage, chives, early potatoes, leeks, lettuce, onions, peas, radishes, rosemary, sage, salsify, wormwood.
Keep away from: )
Comments: onions, leeks, and wormwood repel carrot flies

Chives
Plant near: apples, berries, carrots, grapes, peas, roses, tomatoes.
Keep away from: – )
Comments: Deters aphids and Japanese beetles. Improves flavor & growth of companions.

Corn
Plant near: beans, cucumbers, early potatoes, melons, peas, pumpkins, soybeans, squash.
Keep away from: -)
Comments: soybeans deter chinch bugs.

Cucumbers
Plant near: beans, cabbage, corn, early potatoes, radishes, sunflowers.
Keep away from: late potatoes
Comments: Radishes deter cucumber beetles. Cucumbers encourage blight in late potatoes.

Dill
Plant near: broccoli, brussels sprouts, cabbage, cauliflower, cucumber, lettuce, onions
Keep away from: carrots
Comments: Improves flavor and growth of cabbage family plants.

Eggplant
Plant near: green beans, peppers, potatoes, tomatoes
Keep away from: –
Comments: green beans deter Colorado potato beetles.

Garlic
Plant near: cabbage, cane fruits, fruit trees, roses, tomatoes
Keep away from: peas, beans
Comments: deters Japanese beetles and aphids. A garlic oil spray deters onion flies, aphids, and ermine moths. A garlic tea helps repel late potato blight.

Kale
Plant near: aromatic herbs, buckwheat, cabbage family, marigolds, nasturtiums
Keep away from: pole beans, strawberries

Kohlrabi
Plant near: cabbage/cauliflower companions (except tomatoes)
Keep away from: fennel, pole beans, tomatoes
Comments: kohlrabi stunts tomatoes

Lettuce
Plant near: beets, carrots, parsnips, radishes, strawberries
Keep away from: cabbage family
Comments: lettuce tenderizes summer radishes.

Marigolds
Plant near: all garden crops
Keep away from: -)
Comments: stimulates vegetable growth and deters bean beetles, aphids, potato bugs, squash bugs, nematodes, and maggots.

Marjoram
Plant near: all garden crops
Keep away from: -)
Comments: stimulates vegetable growth.

Mustard
Plant near: alfalfa cover crops, fruit trees, grapes, legumes
Keep away from: -)
Comments: stimulates growth of companion plants.

Nasturtiums
Plant near: apples, beans, cabbage family, greenhouse crops, potatoes, pumpkins, radishes, squash
Keep away from: -)
Comments: repels aphids, potato bugs, squash bugs, striped pumpkin beetles, and Mexican bean beetles and destroys white flies in greenhouses.

Onions
Plant near: beets, cabbage family, carrots, chamomile, lettuce, parsnips
Keep away from: beans, peas
Comments: deters most pests, especially maggots.

Oregano
Plant near: all garden crops
Keep away from: -)
Comments: deters many insect pests.

Parsley
Plant near: corn, roses, tomatoes
Keep away from: –

Parsnips
Plant near: onions, radishes, wormwood
Keep away from: -)
Comments: onions and wormwood help keep root maggots from parsnips.

Peas
Plant near: beans, carrots, corn, cucumbers, early potatoes, radishes, turnips
Keep away from: garlic leeks, onions, shallots

Peppers
Plant near: basil, carrots, eggplant, onions, parsley, tomatoes
Keep away from: fennel, kohlrabi

Potatoes
Plant near: basil, beans, cabbage family, corn, eggplant, flax, hemp, marigolds, peas, squash
Keep away from: apples, birch, cherries, cucumbers, pumpkins, raspberries, sunflowers, tomatoes, walnuts
Comments: Basil deters potato beetles. Marigolds (dug into crop soil) deter nematodes, hemp deters phytophthora infestans (potato blight)

Radishes
Plant near: chervil, cucumbers, lettuce, melons, peas, nasturtiums, root crops
Keep away from: hyssop
Comments: radishes deter cucumber beetles. Chervil makes radishes hot. Lettuce helps make radishes tender. Nasturtiums improve radishes’ flavor.

Rosemary
Plant near: beans, cabbage, carrots
Keep away from: -)
Comments: repels bean beetles, cabbage moths, and carrot flies.

Sage
Plant near: cabbage family, carrots, tomatoes
Keep away from: cucumbers
Comments: deters cabbage moths and carrot flies. Invigorates tomato plants.

Soybeans
Plant near: corn, potatoes
Keep away from: -)
Comments: chokes weeds and enriches soil.

Spinach
Plant near: celery, cauliflower, eggplant, strawberries
Keep away from: -)

Strawberries
Plant near: borage, bush beans, lettuce, pyrethrum, spinach
Keep away from: cabbage family

Sunflowers
Plant near: cucumbers
Keep away from: potatoes
Comments: can provide a trellis and shelter for shade-loving cucumbers.

Swiss Chard
Plant near: bush beans, kohlrabi, onions
Keep away from: pole beans

Tarragon
Plant near: all garden crops
Keep away from: –
Comments: improves vegetables’ flavor and growth.

Thyme
Plant near: all garden crops
Keep away from: –
Comments: deters cabbage moths.

Tomatoes
Plant near: asparagus, basil, cabbage family, carrots, gooseberries, mustard, parsley, onions, rosemary, sage, stinging nettles.

Keep away from: fennel, kohlrabi, potatoes, walnuts

Turnips and Rutabagas
Plant near: peas
Keep away from: knotweed, mustard
Comments: mustard and knotweed inhibit the growth of turnips and rutabagas!

By Carlotta Lucas Ashland Garden Club

May 2020: Garden of the Month

720 Forest Street

The wonderful garden at 720 Forest St. is a labor of love for homeowners Vicky Sturtevant and Alan Armstrong and is The Ashland Garden Club’s Garden of the Month for May. They have deftly combined edibles with ornamentals in this space they have gardened since 1983.

It is a heavily shaded lot, particularly the upper, forested quarter-acre parcel that they purchased separately. In all, they have a half-acre that they manage beautifully. The hardscape was designed by Covey-Pardee Landscape Architects in 2009. Eric Cislo welded the gates and Ted Loftus constructed the stone walls. The deer are kept out.

The couple enjoys being outside and are inveterate hikers, so they also love gardening. They devote a lot of time to it and it shows. Nothing is neglected. They follow the sun throughout the yard and throughout the year.

Grandparents of both instilled in them a love of plants and a tradition of gardening. Alan’s grandparents were farmers. Vicky’s had a large lot and grew all kinds of things, especially roses. There is a vigorous peony in the yard that came from Vicky’s grandparents. She speaks fondly of how much certain plants remind us of certain people. Happily, their adult son loves gardening, too.

Both Alan and Vicky are very knowledgeable about plants and have noticed that plants native to the Pacific Northwest, in which they have specialized, are beginning to struggle to survive and that now plants native to Northern California are more likely to thrive in Ashland. So it is to them they are turning their attention.

Visitors who walk or drive by will notice the great diversity of plant life in this garden. Among favorites of the couple are species rhododendrons (includes azaleas), Penstemons, Salvia, Agastache, and Marionberry. In May, dogwood, lilac, and rhododendrons make a stunning display.

Article by: Ruth Sloan, AGC Garden of the Month Committee Chair

Photos by: Larry Rosengren

AGC Speaker Program

November 5, 2018

Raised Bed Gardening

Subtitle: No Longer a Prisoner of Bad Soil

Speaker: John Kobal, Master Gardener
John Kobal uses 30 years of gardening experience and 16 raised beds at home to focus his talk on the benefits of raised beds, how to begin and how to maintain them for maximum production.

Lecture is open to the public
Location: Ashland Community Center 59 Winburn Way, Ashland, OR
Time: 12:30- 1:15pm

Garden of the Month: July 2018

995 Park Street-

The selection committee for the Ashland Garden Club’s Garden of the Month program has had its eye on D’Anne and Steve Shaw’s charming garden at 955 Park Street for a very long time.  The first time we approached them, they said that the back yard was not ready for prime time.  The next year, the giant incense cedar in the front yard was felled.  The year after that, they were remodeling the house.  Every year something happened because these homeowners are never idle.  Finally, the time has come:  This is the July 2018 Garden of the Month.
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The wedge-shaped garden is gorgeous, both front and back.  D’Anne and Steve both love color and work hard, each averaging ten hours per week despite their busy careers.  They share responsibility for design and maintenance.  They consider it a work in progress, continually making changes.  The garden is entirely organic and is a designated pollinator garden.  Don’t miss the Pollinator Garden tour on July 15 (https://www.ashland.or.us/Page.asp?NavID=17460).  The Shaws were part of the tour last year but have made way for new gardens this year.IMG_3600

Steve reports that he was introduced to gardening as a child by his father who taught him the value of hard work from an early age and gave him a deep appreciation for gardens.  Three pretty Gingko trees were given to D’Anne in one-gallon pots a long time ago and she cared for them in the pots for years until settling on this property. IMG_3609

You will see how much they have grown and thrived in the 18 years since being planted in the ground.  The unusual round metal arbor in the corner of the front yard was made for them for their wedding.IMG_3605

Among the many beautiful flowering plants are roses, hydrangea, peonies, lilies, foxglove, columbine, ground orchids and dahlias.  Walk or drive by to see how prettily these things and many others look together.IMG_3607

Article by: Ruth Sloan

Photos by Larry Rosengren

Garden of the Month: June 2018

128 S. Laurel Street:
Luna Bitzer has been gardening at 128 S. Laurel Street for 22 years and it shows. She lives in the historic home there with her husband Joe. He built the charming garden shed and occasionally helps with heavy lifting, but mostly Luna does all the work herself, including some extraordinary tasks such as installing the paver walkway to the front door—using just a shovel—and forming stairs between levels in the terraced yard.

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While she has had some help over the years with specific improvements, such as the all-female group of friends who helped build an arbor, or the Bitzers’ children who helped maintain a pond, she devotes a very large amount of time to keeping the property healthy and beautiful. In summer and fall, she averages 20 hours per week working in the garden. In the winter she takes some time off and in the hottest months of summer she works fewer hours outside. This is the Ashland Garden Club’s Garden of the Month for June.

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Among the biggest trees that dot the third-of-an-acre city lot at the corner of Almond Street are an ancient black oak (Ashland’s 11995 tree of the year), Douglas fir, silver maple, and blue spruce. When this garden was on the AAUW tour ten years ago, Luna created a list of plants with nearly 150 names. Luna’s current favorites include Howard McMinn manzanita, microbiota decussata (a low-growing evergreen cypress), agastache, hesperaloe and several varieties of viburnum, ornamental grasses, and hardy geraniums. Cotoneaster franchetii forms a hedge along the alleyway.

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Luna says that the installation of a deer fence in 2013 changed her life as she no longer has to worry about what she plants or where. The garden is constantly evolving. What was once a pond that she created is now a shady raised bed, and most of the lawn has been converted to a berm that is rarely watered. The hot tub was removed and the deck rebuilt with a roof for outdoor dining. In all, it is a totally enchanting garden.

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Article by: Ruth Sloan

April Gardening Tasks

April 14th is National Garden Day!

  • Use a soil thermometer to help you know when to plant vegetables. Some cool Pansy_Redseason crops (onions, kale, lettuce, and spinach) can be planted when the soil is consistently at or above 40°F.
  • Spread compost over garden and landscape areas.
  • Prune gooseberries and currants; fertilize with manure or a complete fertilizer.
  • Fertilize evergreen shrubs and trees, only if needed. If established and healthy, their nutrient needs should be minimal.
  • If needed, fertilize rhododendrons, camellias, azaleas with acid-type fertilizer. If established and healthy, their nutrient needs should be minimal.
  • Prune spring-flowering shrubs after blossoms fade. Early-spring bloomers, such as lilac, forsythia, and rhododendron, bear flowers on wood formed the previous year. The best time to prune them is late spring — immediately after they finish blooming. If pruned later in the growing season or during winter, the flower buds will be removed and spring bloom will be decreased.
  • Fertilize cane berries (broadcast or band a complete fertilizer or manure).
  • Remove spent flowers of large-flowered bulbs, such as tulips and daffodils, as soon as they fade. This  channels the plants’ energy into forming large bulbs and offsets rather than into setting seeds. Allow foliage of spring-flowering bulbs to brown and die down before removing.  Do not remove bulb foliage while it is green; the green leaves nourish the bulb and next year’s flower buds, which form during summer. Cut or pull off leaves only after they yellow. Do not braid leaves to get them out of the way. Braiding reduces the amount of sunlight the leaves get and hinders growth.  Allow smaller bulbs (like: muscari and puschkinia) to set seed, so they self-sow and form ever-larger drifts.
  • Cut back ornamental grasses to a few inches above the ground, in early spring.
  • Prune and shape or thin spring-blooming shrubs and trees after blossoms fade.
  • Plant gladiolus and hardy transplants of alyssum, phlox, and marigolds, if weather and soil conditions permit.
  • Fertilize Lawns. Apply 1-pound nitrogen per 1,000 square feet of lawn. Reduce risks of run-off into local waterways by not fertilizing just prior to rain. Also do not over-irrigate and cause water runs off of lawn and onto sidewalk or street.
  • April is a good time to dethatch and renovate lawns. If moss was a problem, scratch surface prior to seeding with perennial ryegrass.
  • If necessary, spray apples and pears when buds appear for scab. And spray stone fruits, such as cherries, plums, peaches, and apricots for brown rot blossom blight.
  • Plant balled-and-burlapped, container, and bare-root fruit trees.
  • Plant container and bare-root roses.
  • Prepare garden soil for spring planting. Incorporate generous amounts of organic materials and other amendments.
  • Divide and replant spring-blooming perennials after bloom.
  • Plant fall-blooming bulbs.

Article by:
Terra Gardens Nursery & Bark
Salem, OR