Fall salvias
show out, attract
hummingbirds
By
Norman Winter
MSU
Horticulturist
Central Mississippi Research & Extension
Center
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The
forsythia sage is a short-day or
long-night bloomer that reaches 6 to 7
feet in height and is topped by bright
yellow blossoms reaching 12 to 24 inches
in length.
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I always
like to go back to the Truck Crops Experiment Station after
the Fall Flower and Garden Fest. It's kind of like going
back on the football field after winning the game.
The
hummingbirds seem happy now that the 6,000 visitors are
gone, but they sure put on a show for them during the Fest.
One plant they were really feasting on was the forsythia
sage, known botanically as Salvia madrensis.
Also
showing out in the garden is the Salvia leucantha, or
Mexican bush sage, known as Kathy Ann Brown. You often see
it sold with only the initials KAB, which lead most to think
it is called cab, like a taxi.
The
look on the faces of gardeners who see the forsythia sage
for the first time is priceless. This short-day or
long-night bloomer reaches 6 to 7 feet with monolithic
proportions, topped by bright yellow blossoms reaching 12 to
24 inches in length.
The
forsythia sage's tall stature makes it a great companion for
the dwarf 2- to 3-foot Kathy Ann Brown, which features dark
lavender flower spikes.
These
two salvias are just a sampling of those that really strut
their stuff during the fall. They both are hardy from zones
7b to 9 and prefer full sun, though some shade is tolerated.
The soil should be very well drained. Plant on raised beds
or amend heavy soils with compost or humus. Well-drained
soil may encourage a return further north than expected.
While
preparing the soil, incorporate 2 pounds of a slow-release
12-6-6 fertilizer per 100 square feet of bed space. Space
the forsythia sage 24 to 36 inches apart and the Kathy Ann
Brown slightly closer.
Do not
plant either of these under streetlights or floodlights
because they bloom in response to the number of dark hours.
Give them supplemental water during long dry periods. In the
fall after significant frost damage, prune to ground level
and add a layer of mulch for winter protection.
Feed
them a light application of fertilizer in the spring with
the emergence of growth and every six to eight weeks through
September. The forsythia sage can be pinched or pruned once
or twice during the summer to increase the number of
blooming stems in the fall.
Divide
or transplant volunteers in the spring when sprouts are
small. I have moved large plants, however, with good
success.
The
forsythia sage is definitely for the back of the border.
Plant the Kathy Ann Brown in front, or use other salvias
like indigo spires or pineapple sage. Ornamental grasses
also make great companions.
The
forsythia sage is most often sold generically, but the
variety Dunham that shows up occasionally is known for
superior cold-hardiness.
The
flower spikes of the Kathy Ann Brown make superb cut
flowers. They are also excellent for drying. Harvest several
and tie with sprigs of rosemary and hang upside down in the
kitchen for a cottage look.
The
fall garden can be as showy as the spring and summer garden,
but it is hard to imagine it being so without the use of
several perennial salvias like the forsythia sage and the
dwarf Mexican bush sage known as Kathy Ann Brown.
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Released:
October 28, 2004
Contact: Norman
Winter,
(601) 857-2284
Editor's
Note: Ideal publication dates of Southern Gardening columns
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