The best time to plant almost anything in North Texas is October through March, and the single best month is usually October. This surprises people, because garden centers are busiest in April and the instinct is to plant when everything looks alive.
The reason is roots. A plant put in the ground in autumn spends the cool months growing roots into soil that is still warm, and meets its first summer with an established system underneath it. The same plant put in during April gets about six weeks before it has to survive a Texas July.
Why autumn beats spring here
Soil temperature and air temperature move on different schedules, and autumn splits them in the plant's favor.
- Soil stays warm well into November, so roots keep growing after top growth slows.
- Cooler air means less water lost through leaves, so the plant is not fighting to keep up.
- Autumn and winter rain does part of the watering for you.
- Two full growing seasons of root development happen before the first July, instead of six weeks.
- Nursery stock is often better priced and less picked over than in April.
What to plant now
Almost everything woody, plus cool-season color.
| What | Best window | Notes |
|---|---|---|
| Shade and ornamental trees | October to March | Fall is ideal. Avoid planting into summer. |
| Shrubs and evergreens | October to March | Evergreens need winter watering in year one. |
| Perennials | October to November | Roots in before the plant goes quiet for winter. |
| Cool-season color | October to November | Pansies, violas, snapdragons, kale. |
| Warm-season turf and sod | Spring to early summer | The one exception. Needs heat to root. |
| Spring bulbs | November to December | After the soil cools. |
The mistake that undoes all of it
Planting too deep. The root flare, where the trunk widens into the roots, has to stay visible at the soil surface.
Nursery stock frequently arrives with the flare already buried in the container, so setting the root ball level with the ground buries it further. The plant then declines slowly over years while the buried bark stays wet and rots, and almost nobody connects the death to the planting day.
Before anything goes in the hole, scrape the top of the root ball back until you find where the trunk widens. Plant to that, not to the top of the soil in the pot.
Watering through the first winter
This is the part people skip, and it is why autumn-planted evergreens sometimes fail.
Deciduous plants drop their leaves and need very little through winter. Evergreens keep their foliage and keep losing water all winter, while the roots sit in cold soil and take it up slowly. A dry, windy January does more damage to a new evergreen than August does.
Water new stock deeply every two to three weeks through the winter whenever there has been no meaningful rain. Deeply means at the root ball, not a sprinkler pass over the lawn around it.
Do not fertilize it yet
A new planting does not want a push of top growth going into a freeze. Fertilizer in autumn encourages soft new shoots that are still tender when the first hard frost arrives, and those are the parts that die back.
Mulch instead. Three inches, kept off the trunk, moderates soil temperature and holds moisture through the dry spells that actually cause the damage.
Wait until the plant breaks growth in spring before feeding it.
Key takeaways
- October through March is the planting window in North Texas, and October is usually best.
- Autumn planting gives roots two seasons to establish before the first Texas summer.
- Keep the root flare visible at the surface. Burying it kills plants slowly over years.
- Evergreens need deep watering every two to three weeks through their first winter.
- Do not fertilize a new autumn planting. Mulch instead and feed in spring.
Sources
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