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Providing
Horticultural
Knowledge
and Products for over
25 years!
Horticultural
Calendar for San Antonio, Austin
and Surrounding
Areas |
September
Week 1 -
Sow: Bush Snap Beans,
Bok Choy, Broccoli, Brussels Sprouts, Cabbage, Cauliflower, Cilantro, Cucumber
and Parsley.
Sow seeds of winter annuals
and wildflowers in full sun.
If your lawn is declining/dying
in patches, check for grub worms, chinch bugs or a fungal disease.
Plant perennials like Fall
Asters, Mums, Salvias for late season color.
Plant seed potatoes saved
from spring harvest.
Finish pruning shrubs to
avoid encouraging new growth which is freeze tender.
Week 2 -
Apply acidifying iron supplements
& paramagnetic minerals to Azaleas, Camellias, Dogwoods,
Gardenias, etc.
Apply pre-emergent herbicides
to control cool-season weeds.
Sycamores, Catalpas, Cottonwoods
and Mulberries with scorched, anthracnose-blighted leaves will never
improve. Please, cut them down to two inches below soil line.
FALL
IS FOR PLANTING. Plant hardy trees, shrubs, vines, groundcovers
and perennials from now
until mid-December for optimal results.
Fertilize Caladium corms
once more if you intend to dig and store them in late October. Replant
in
mid-April.
Lawn mower blade height
can be lowered 1/2" to 3/4".
Sow: Kohlrabi and
bush forms of Summer Squash.
Do not be too hasty!
Pansies, Johnny-Jump-Ups & Snapdragons are not set out until after
Columbus Day.
Build a compost pile to
collect falling fall foliage.
Week 3 -
Buy bulbs for planting this
fall. Some, like Tulips, should be refrigerated until mid-December.
Transplant: Broccoli,
Brussels Sprouts, Cabbage and Cauliflower.
Dig and divide spring- and
summer-blooming perennials.
Failure to apply pre-emergent
herbicides permits weeds to germinate.
Control Brown Patch in 'Raleigh'
St. Augustine lawns. Spray fungicides or re-sod with 'Floratam' St.
Augustine or 'El Toro' Zoysia.
Week 4 -
Make sure your younger specimens
of hybrid Crepe
Myrtles are starting to go dormant. If not, cease
watering and remove their mulch until they are leafless.
Control Pillbugs in newly-germinated
Texas Bluebonnets.
Still time to sow wildflowers
in your landscape, as well as waste places near where you live or work.
Check the structural integrity
of planters or half whiskey barrels before planting winter annuals. |
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August
Week 1-
It is normal for Live Oaks,
Loquats and Magnolias to be dropping some leaves when it is hot & dry.
Feed clumping bamboos with
slow-release, 15-5-10 lawn food and water regularly during their summer
growing period.
Make sure your sprinkler
system does not water the street, sidewalks or driveways.
Fertilize summer-blooming
perennials lightly with 15-5-10. They will need water afterwards.
Finish transplanting Tomatoes,
Peppers and Eggplant for fall production.
Even cacti and succulents
in the landscape need to be watered if it is dry.
Try to work in the garden
between 6:00 AM and 9:00 AM. Drink at least one glass of water (not
carbonated or caffeine- or alcohol-containing products) each hour while
working.
Week 2 -
Cut back Poinsettias and
pinch back the subsequent growth once.
Pinch shoot tips on Mums
and Asters.
It isn't just drought-stress,
chinch bugs could be damaging your turf.
Don't let your fall vegetable
transplants wilt; keep them watered and growing vigorously.
Use your oak leaf compost
as a mulch around shrubs or vegetables.
Build raised beds, in full
sun, of acidic materials (decayed granite, glauconite (green sand), red
sand and
pine bark soil conditioners) for Strawberries.
Keep Chayote and Luffa vines
well-fed and healthy. They'll start blooming in a few weeks.
Week 3 -
Begin minimal pruning of
Hybrid Tea Roses. Feed with a slow-release fertilizer.
Finish sowing: Bush
Lima Beans, Sweet Corn, Cucumber and Winter Squash.
Order wildflower seeds and
sow as soon as they arrive.
Even if you see Pansies
offered for sale, please resist. They should not be planted until
mid-October.
Transplant: Broccoli,
Cabbage, Cauliflower and Potato.
Languishing spring-blooming
perennials may be cut back and divided. Replant immediately and water
them deeply.
Remove fire-blight-affected
branches from Cotoneaster, India Hawthorn, Pear, Photinia and Pyracantha.
Sterilize pruners between each cut in a chlorine bleach & water solution.
Week 4 -
The optimal FALL
PLANTING SEASON starts in three weeks!
Sow: Cucumbers and
Summer Squash.
Finish summer pruning of
Oak-Wilt-susceptible Live Oaks and Red Oaks.
Remove some of the barren
branches from female hollies so berries will be more prominent when they
turn red.
Nurserymen are now returning
from their huge, annual trade show. Look for new products and plants
in the next few weeks.
Start sowing flowering winter
annuals, such as: Allysum, Calendula, Larkspur, Poppy and Stocks. |
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Before
you irrigate, see
if storms are approaching from the west.
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Or, see
if storms are approaching from the east.
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