The Inside-Out Garden

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Container Gardening Essentials

An herb gardener whose entire garden is in
containers often must take a backseat to a gardener with dirt, in
terms of plant growth and variety. But we container gardeners have
one clear, undisputed advantage: We can move our potted herbs and
houseplants around on a whim.

At this time of year when the seasons change and the weather is
due to warm up, if it hasn’t already, think about taking your
herbal houseplants on safari to a sheltered spot in the backyard or
on a porch. After a winter indoors, chances are good your
houseplants are as tired of being cooped up inside as you are. And
they probably show it, with spindly stems and leaves dropping off
and perhaps an infestation of spider mites. They need a

Indoors, plants get accustomed to the lower light conditions and
drier air of a home heated in the wintertime, and when thrust
suddenly into a different world, they protest, sometimes to the
point of shriveling up and dying.

So the most critical part of freeing your plants from their
winter imprisonment is to give them time to get accustomed to the
change. Wait until the spring weather has stabilized and is done
with the freeze-thaw cycles that dominate this season in many parts
of the country. Cut back any weary or diseased foliage to focus the
plant’s energies on new growth. Then do the move gradually, if you

Sometimes houseplants that have grown into comfortable, large
pots are too heavy to move easily, so it’s impractical to move them
in and out every day the way we do with seedlings when we harden
them off in preparation for planting. But the idea is the same:
Gradually increase their exposure to the harsh outdoor environment
to give them time to cope. If you can, move them first for a few
days to a protected spot, like a shaded porch, then to a shady spot
outdoors, perhaps under a tree canopy or large shrub. Then
gradually scoot them to where you want them, where they get enough
sunlight to thrive but are still protected from the vagaries of
life outdoors.

Gradually help potted plants become accustomed to life
outdoors and be considerate of their water and nutrient

Positioning them in dappled shape under the canopy of a tree is
perfect for many potted herbs because the plants will get the
gentler light of mornings and evenings, when the sun is closer to
the horizon, but be protected from the stronger, harsher light of
the afternoon sun overhead.

A potted plant has its limitations, so is usually more
comfortable in less sun. Pay a little more attention to its needs,
at least in the beginning. Keep the potting soil uniformly moist
after you move it to its vacation spot, until you see what it can
handle. Turn it if need be so that it gets sun on all sides and
grows evenly.

Grouping outdoor potted plants together in a sheltered spot
makes it easier to water them, and sometimes the lawn sprinkler can
handle that duty. Generally, you can dispense with the drainage
trays and let the water flow out the bottom of the pots, but be
aware of some plants’ tendency to send their roots right out the
drainage holes into the earth so that by summer’s end they’re no
longer moveable. Lemon verbena comes to mind as a plant that can
sustain damage if you have to rip its roots out to move it, so that
one I’d position on a sidewalk or on bricks, or leave it on a
drainage tray. For most herbs, this isn’t a problem.

After a housebound plant has settled into its vacation spot,
give it a dollop of manure tea or other organic fertilizer to
encourage new growth. (See “Plants Need Tea, Too!” in our July 2004
issue and if you don’t have it, order the issue by calling (785)
274-4354 or view the story online at www.Herb If over time, in its enthusiasm for the great
outdoors, the plant gets too big for its old pot, repot it in a
bigger pot.

Kathleen Halloran, former editor of The Herb Companion, likes
potted herbs because in recent years she has moved around a

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