Providing Horticultural Knowledge and Products for over 30 years!

Horticultural Calendar for San Antonio, Austin and Surrounding Areas

Week 1-
Any Impatiens, Purslane and Madagascar Periwinkle you see now at big box or corporate clone nurseries are just for display purposes. You shouldn't buy and plant them until mid-April.

Sow: Beets, Carrots, Mustard Greens, Peas, Radish, Spinach, Swiss Chard and Turnip in well-prepared beds in full sun.

Finish pruning Grape vines. Learn the different methods for Munson hybrid grapes and vinifera grapes. When your vinifera grapes start declining, replace them with 'Bailey', 'Brilliant', 'Champanel', 'Lomanto' & 'Valhalla'.

Collect, bag and refrigerate material for grafting or budding this spring.

Till composted organic matter and shredded Cereal (Elbon) Rye into vegetable garden soil.

Week 2 -
Palms with stippled, yellowed leaves have a magnesium deficiency. Apply annually a solution of one to two cups of epsom salts in 10 to 20 gallons of water in a three foot radius.

Apply pre-emergent herbicides now to stop germination of warm-season weeds in lawns, beds and landscaped areas.

Water and fertilize all winter annual bedding plants.

Prune Roses (except Climbers) on St. Valentine's Day.

Transplant: Broccoli, Cabbage, Cauliflower, Kale and seed Potatoes.

Remember to re-apply dormant oil before buds open on fruit and nut trees.

Buy small transplants of Tomatoes and Peppers and grow them in larger pots until the end of March. Protect them from temperatures below 50 F.

Week 3 -
Finish pruning Red Oaks and Live Oaks. Follow applicable local codes & regulations enacted by municipal corporations.  While these are not actually laws, be careful since Big Sibling might be watching!.

It is still time to prune fruit trees, even if buds have begun to expand. Seal cuts with exterior latex paint or a tree-wound dressing.

Burn all remaining Red Oak and Blackjack Oak firewood to reduce chance of spreading Oak Wilt.

Feed strawberries with an acidifying fertilizer.

Week 4 -
Mow Asian Jasmine beds, feed with 21-7-14, 18-6-12 or 15-5-10 slow-release lawn food and water it in.

Make first sowing of Sweet Corn. Sow more in 10 days.

Side-dress (feed) Onion transplants with 21-0-0 every two weeks during growing season.

Protect fruit trees while they are blooming from bacterial diseases. Use Kocide for Apple and Pear; and Agri-Strep for Peach and Plum.

Remove winter-killed foliage from Bermudagrass, Zoysia and Buffalograss lawns. Use clippings as a mulch under shrubs or add to your compost pile.

Start removing winter mulch around sub-tropical perennials. Failure to remove that deep of a mulch keeps the soil cold, retarding their recovery, and increases their risk of rotting.

Week 1-
Prune out all tree and shrub growth within two feet of the house or roof. Find more pruning details here.

Have your lawn mower and chain saw serviced and their blades sharpened. Replace old mowers with mulching models.

Sow Tomatoes and Peppers indoors, with supplemental heat and light, if you intend to produce your own transplants.

Remove soil and rust from shovels, hoes, etc. Sharpen as needed and oil them.  Store them in a dry place.

Clean up your vegetable garden and till in more organic matter. Do not compost diseased or infested plant remains.

Prune dormant trees and shrubs, except those that bloom in spring. Fruit trees are pruned as their buds are expanding.

Week 2 -
It is normal for Hibiscus and Bougainvillea to lose their leaves when brought indoors. Consequently, water them less.

Buy recommended varieties of fruits, nuts & berries and plant in well-drained, sunny sites. Plant two or more varieties if cross-pollination is required. Use sulfur to suppress cotton root rot.

Water your St. Augustine grass lawn deeply if temperatures below 24 F. are forecast.

This is a good time to divide and replant ornamental grasses. Keep them moist, not wet, while they re-root.

Add acidifying iron-rich supplements to acid-loving plants and replenish their pine bark or pine needle mulch.

Week 3 -
Apply dormant oil to scale-infested plants, as well as fruit and nut trees twice during winter.

Wear old clothes when handling frozen banana stalks. Their oozing sap stains everything.

Protect Ranunculus flower spikes from temperatures below 24 F.

Tulips could start flowering between now and mid-February.

Week 4 -
Trench around clumps of running Bamboo to find and remove any rhizomes that are escaping. Replant or share them.

Spray a selective grass herbicide in wildflower patches to remove cold-season grasses.

Restock bird-feeders regularly and provide a source of liquid water when temperatures are below freezing.

Open temporary greenhouse for tender citrus & young Mexican Avocado plants on warm days.

Plant "Texas Grano 1015y" onion transplants. Protect them from extreme cold. Begin feeding them with 21-0-0 in three weeks.

Before you irrigate, see if storms are approaching from the west.

Or, see if storms are approaching from the east.

The botanical images on this site were produced by The Photon Hunt.

Thank you for visiting!,

seasonal notes

Protect acorns, sown for propagation, from squirrel predation.

Copyright at Common Law by Manuel Flores