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Retail
Nursery Residential
Landscaping Commercial
Landscaping Week
of February 4, 2002
By Calvin Finch, Conservation
Division, Manager, Water Resources & Conservation Dept., SPRING COLOR
February is not the official first month of spring
but in San Antonio it is in practical terms.The paperwhites are blooming.
Recognize them by the lush clumps of upright foliage topped by small,
white blooms. There is a debate whether the fragrance is pleasant
or unpleasant. I have to admit that when the flowers are inside in
an enclosed space it is a bit overwhelming to me. Outside, however,
it is acceptable. Paperwhites naturalize to come back every spring
if the bulbs are planted in the autumn in full sun or even under deciduous
trees. They are especially pleasing in clumps in a shaded lawn under
pecans and redbuds. If you have paperwhites now be slow to remove
the foliage. As long as it is green, the plant is producing starch
to be stored in the bulbs for next springs bloom. Deer do not
eat paperwhites.Old-fashioned iris, also called cemetery iris, have
also started to bloom. They come in white with sword-like foliage
that is attractive year-round as a groundcover. The blue flag type
iris will follow shortly. Iris are tolerant of poor soils. The rhizomes
should be planted in full sun so that the top is level with the surface
of the soil. Fall is the usual time that the rhizomes are planted,
but nurseries have iris now in one-gallon containers that can be planted
in bloom. Iris are one of the few plants that do not prosper with
mulch. The rhizomes rot if planted too deeply or if buried under a
mulch that stays soggy.In addition to the early blooming cemetery
iris and blue flags there are other great choices in this family.
The fancy bearded (German or Dutch) irises are available in yellow,
blue, white, red-brown, and many bicolors. Some have spikes three-
to six-ft. tall above clumps of narrow leaves. Siberian iris has grass-like
foliage. All of the irises seem to be deer-proof.Texas Gold
columbines used to be deer-proof, but the deer now have learned to
eat the wonderful, soft, green foliage, especially in droughts. One-gallon
containers of Texas Gold are available in some nurseries.
Planted now they will produce golden, shooting star-like blooms on
the end of two-foot stalks in March and provide an attractive groundcover
under deciduous trees or thin crowned live oaks.Larkspurs bloom about
the same time as native columbines and they naturalize just like the
other flowers described in this article. They are annuals, however,
and reproduce by reseeding. Obtain a six-pack of transplants from
your favorite nursery to plant in full sun. They will bloom in white,
pink, and many shades of blue with simple or compound blooms. When
the weather warms up the larkspur foliage declines quickly. The seeds
disperse from the spent flowers and if they reach bare soil will germinate
every year after you plant them. Larkspur is also called delphinium.
To have good reseeding success the site must not be mulched. I follow
my larkspur up with one of the perennial blue salvias. The salvias
freeze back and do not start growing until after the larkspur has
declined. A perfect match for the garden. Deer do not seem to eat
larkspur (or the salvia). If it is instant color you want for
the patio or garden, containers of geranium, snapdragons, pansies,
and gerber daisies are very showy now. In the shade use cyclamen and
primula.
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