🍂Fall Planting Is in Full Swing — and No, It’s Not Too Hot 🥵
Hello there fellow green thumbs!
Every September somebody writes in asking the same thing: “Is it too late? Is it too hot? Should I wait until spring?”
Short answer: you do not have to wait.
Most deciduous hardwoods are traditionally planted in fall. Crape myrtles can be planted any time of year. Those two facts are not a contradiction. They’re the whole point of this post.
Why Fall Is the Classic Window for Deciduous Hardwoods
Oaks, maples, pecans, and a lot of other deciduous trees follow an old nursery rule: plant in autumn.
Here’s why that rule exists:
- Soil stays warm long after the air cools. Root growth is fastest in warm soil, not in a 95° afternoon on the leaves.
- Tops slow down. Shorter days and cooler nights mean less stress on new foliage while the plant puts energy underground.
- Feeder roots have weeks (sometimes months) to explore before a hard freeze.
- You get a head start on spring. A fall-planted tree wakes up already anchored. A spring-planted tree has to grow roots and leaves in the same rush.
That’s the traditional hardwood playbook. Fall planting is not a gimmick. It’s biology.
Why Crape Myrtles Get to Break the Rule
Crape myrtles are deciduous hardwoods… with a Southern attitude.
They evolved for heat. Once they’re in the ground and watered, they will grow roots in spring, summer, or fall. That’s why we tell customers in zones 8–10 they can plant any time of year — including July, if they’re willing to water.
What they will not do is sit in a box, get planted without watering, and thrive (...well, that's not entirely true either, crape myrtles ship best when they're compeltley dormant!). The “any time of year” rule always comes with: full sun, well-drained soil, mulch, and consistent water while they establish.
So:
- Other deciduous hardwoods: fall is the smart default.
- Crape myrtles: fall is excellent, spring is excellent, summer works if you don’t forget the hose.
September just happens to give you the best of both. Warm soil for roots, easing heat for the tops and plenty of time to grow feeder roots before winter. Not to metnion a head start on next spring’s flush.
What’s Happening Underground in September
Roots don’t care that the calendar says fall. They care that the soil is still warm.
In North Florida and most of the South, September soil is still in the sweet spot. New crape myrtles shipped actively growing will keep producing fine feeder roots as long as moisture is steady. Those little roots are what carry the plant through winter and explode in March.
You may not see a huge burst of top growth after planting. That’s fine. You’re buying next year’s performance right now.
Zone-by-Zone: How to Plant This Month
Zones 8–10 (Florida, South Texas, Gulf Coast, much of the Deep South)
Plant now. This is an easy yes. Follow the planting guide, mulch 2–3 inches (keep it off the trunk), and water deeply 2–3 times a week for the first 4–6 weeks, then back off as they settle. No winter blanket required in a normal year.
Zones 6 & 7
Fall planting can & does work. Spring after last frost is still the safest default — we say that honestly because we want you to succeed. If you plant in September anyway, that's OK! Just keep an eye on them:
- Get them in the ground early in the month if you can, not the week before a hard freeze.
- Water them in well, then keep soil lightly moist (not soggy) until the ground cools.
- Mulch 3–4 inches of pine bark or hardwood chips over the root zone. Pull it back from the trunk.
- After a few frosts, when they’re going dormant, add winter protection: a burlap wrap against drying wind, a loose cover on the coldest nights, or shelter for potted plants in an unheated garage or shed.
- Do not fertilize now. Soft new growth before a polar blast is the opposite of what you want.
In a harsh zone 6 winter, top growth may die back. Don't panic! That’s not always a funeral. Roots often survive and push from the crown in spring — especially on cold-hardy varieties. Zone 7 is a coin flip. Check out our winterization techniques on the Growing in Cold Cliamtes page.
Zone 5 and colder
Fall planting is not what we recommend. Plant after last frost in late spring / early summer. Pots that can come into shelter beat in-ground gambling.
How to Winterize a Newly Planted Crape in Zones 6 & 7
- Plant at the same depth it sat in the pot.
- Water deeply at planting, then regularly until the ground cools.
- Heavy mulch ring — think insulation, not a volcano against the stem.
- After leaf drop / repeated frost: burlap screen on the windward side, or frost cloth on the bitter nights (temps in the low teens or single digits)
- Right now, skip late fertilizer and heavy pruning. Let it harden offand toughen up.
- If it’s in a pot, the pot is more vulnerable than the ground. Move it to an unheated but protected spot before the worst cold.
🤔A little caution the first winter beats replacing a tree in April.
Trending Questions We Get Every Fall
Is it too hot to plant crape myrtles in September?
No. Hot air bothers people more than it bothers a well-watered crape myrtle. Warm soil is a gift. Water deeply and mulch.
Will a fall-planted tree bloom this year?
Maybe a little, maybe not. Don’t plant in September expecting a full Tuscarora cloud in three weeks. Plant for next summer’s show and a stronger root system.
Why did my new tree drop leaves after shipping?
Deciduous hardwoods hate boxes...and shipping. Some leaf drop is normal. Don’t panic. Water, shade the pot for a day if it arrived dry, then plant. New growth follows roots.
Should I fertilize at planting?
Not in September. Let them toughen up in preparation for their long winter nap.
How late is too late?
In 8–10, you have a long runway as long as the ground isn’t a swamp and you can water. You can plant any time of year. In 6–7, earlier September is better than a last-minute November.
Can I plant Tuscarora in fall?
Yes! Same rules as any crape myrtle. Watermelon-red blooms, strong fall color, fast grower — and it still wants sun, drainage, and a drink while it settles.
Do I need to prune after fall planting?
No. Leave the structure. Winter pruning belongs on established, dormant plants, not on a tree that just used its last energy to grow new roots.
The Simple Planting Checklist
- Full sun (6+ hours).
- Hole as deep as the pot, two to three times as wide.
- Same soil depth as in the pot.
- Water thoroughly-really soak it.
- Mulch.
- Keep watering through dry spells for the first month.
- Zones 6–7: plan the winter wrap now, not during the ice storm.
We’re shipping every week. Crape myrtles are tougher than they look in a box. Give them warm soil, consistent water, and a little first-winter respect up north, and they’ll pay you back for years.
Questions? That’s what we’re here for. Ask. We’ve planted these in Florida heat and talked customers through zone 5 winters more times than we can count.
Grab the shovel, Fall planting is in full swing!🍂
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