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Herbs planted in and around a planter box used for growing vegetables |
I
can’t say enough about the benefits of
edible
landscaping with herbs. A huge benefit for my husband and me is purely
culinary: we love to cook. Fresh herbs are expensive at the grocery store
and not always available. Having fresh herbs just outside our door for picking
at a moment’s notice is a perk we have come to take for granted; hardly a day
passes where I’m not out picking fresh rosemary, parsley, or tarragon, for our
meals.
But
there is another equally important reason for
incorporating
herbs into your edible landscape.
Companion Planting with
Herbs
Herbs
do double-duty in the garden. They are essential to the home chef, but they
also contribute to a healthy garden ecosystem.
Companion
planting is the old (some say ancient) technique of planting certain herbs,
vegetables, and other plants in close proximity so that one or both benefits
from the presence of the other.
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Sage and thyme |
The
benefits come through different mechanisms: through the root system by sharing
nutrients, or through beneficial secretions, (exudate), by stimulating microbes
or bringing nutrients up to the soil surface, attracting pollinators with
flowers, and deterring pests through herbal scents.
Some
benefits that have been observed are still mysterious, for example, the
observation that basil improves the flavor of tomatoes when grown together.
Companion planting can be complex and highly technical, but it can be distilled
to a few basic herbs that will benefit your garden and
kitchen.
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A Calendula flower |
10 Favorite Beneficial
Garden Herbs
The
following is a short list of popular culinary herbs that are reputed to be
broadly beneficial in the garden. A good strategy would be to plant these in
several spots near and among your vegetables. You'll have to plan on
semi-permanent locations (edges of planting beds) for the perennials which will
grow year-round in climates with mild winters, or will die back and sprout anew
in spring if protected from freezing. Try growing the annuals from seed; many
of them self seed for the next year.
1.
Basil (Ocimum basilicum)- an
annual; companion to tomatoes, improves growth and flavor; flowers attract bees.
2.
Borage (Borago officinalis)- an
annual with edible blue flowers that attracts bees; companion to
tomatoes, squash, and strawberries, and deters tomato worm.
3.
Calendula (a.k.a. pot marigold; Calendula
officinalis)- annuals and perennials; a good companion for tomatoes
but is said to be good for the garden in general to deter pests, especially
tomato worms and asparagus beetles. Flower petals are good in salads and used
as an antiseptic in ointments.
4.
Chamomile (Chamaemelum nobile)-a perennial;
companion to cabbage and onions; the tea useful against "damping
off", a fungal disease.
5.
French Marigold (Tagetes patula)-
an annual; a garden standard for deterring pests, including nematodes; the
Mexican marigold (Tagetes minuta)is
toxic to many plants but highly effective against many nematodes).
6.
Nasturtium (Tropaeolum majus)-
an annual related to watercress with colorful edible flowers, leaves, and
buds; use as a decoy for aphids, deters some beetles. Climbing and mounding
forms (I prefer the mounding type).
7.
Oregano (Origanum vulgare)-
a perennial; highly aromatic;has beneficial effect on surrounding plants.
8.
Rosemary (Rosmarinus officinalis)
- a highly aromatic woody perennial with bush or sprawling forms; in mild
climates will grow all year-round and the small blue flowers attract bees and
provide forage in winter; deters cabbage moths, bean beetles.
9.
Tarragon (Artemisia dracunculus)- a frost tender perennial herb; mulch during
winter; beneficial throughout the garden.
10.
Marjoram (
Origanum majorana)-
a perennial that has a beneficial effect on surrounding plants, and improves
flavor.
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Thyme, rosemary, and lavender drying on our dining table |
See
the following reference for more information on companion planting (used as a
reference for this post):
How
to Grow More Vegetables,
Jeavons,
J., 7th ed., Ten Speed Press, Berkeley, CA., 2006
Photos: Urban
Artichoke