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The best time to plant squash in South Alabama is in early spring, right after the last frost date has passed, and again in late summer for a fall harvest.
Knowing when to plant squash in South Alabama is the key to a successful crop because this region’s mild climate offers two distinct growing windows that many other parts of the country simply don’t get.
If you’ve been wondering when to plant squash in South Alabama, the short answer is that you’ll want to aim for mid-March through early April for your spring planting, and then again in late July through mid-August for your fall planting.
In this post, we’ll dig into the exact timing for when to plant squash in South Alabama, what makes our growing season so special, and some helpful tips to get the most out of your squash plants.
Let’s get your garden started on the right foot.
When To Plant Squash In South Alabama: Spring Timing
When to plant squash in South Alabama for the spring really comes down to watching the soil temperature and the calendar together.
Squash is a warm-season crop that absolutely hates cold soil and any hint of frost, so you need to be patient and wait for those chilly nights to be firmly behind you.
In South Alabama, the average last frost date typically falls between March 15 and March 25, depending on whether you’re closer to the coast or further inland.
So when to plant squash in South Alabama for spring is usually safe around the last week of March to the first week of April, once the soil has warmed up to at least 60°F.
1. Soil Temperature Matters More Than The Calendar
You can ask when to plant squash in South Alabama until you’re blue in the face, but the real answer lies in the temperature of your soil.
Squash seeds will simply rot in cold, wet ground, so it’s better to wait a week or two extra than to rush and lose your seeds.
Grab a simple soil thermometer and check the ground at about two inches deep in the morning, and if it reads 60°F to 65°F, you’re good to go for planting squash.
If you’re checking when to plant squash in South Alabama and the forecast shows a cold snap coming, just hold off for a few more days until things warm up again.
2. Direct Sowing Versus Starting Indoors
When to plant squash in South Alabama depends a lot on whether you’re direct sowing seeds or transplanting seedlings.
Squash has a delicate root system that doesn’t love being disturbed, so direct sowing is usually the easiest and most reliable method for our area.
If you do want to start seeds indoors to get a head start, you’ll want to plant them about three to four weeks before your intended transplant date.
That means for a mid-March transplant, you’d be starting seeds indoors in late February, but honestly, most gardeners in South Alabama just direct sow their squash seeds.
3. Watch For Those Late Cold Fronts
The tricky part about knowing when to plant squash in South Alabama is that we can get sneaky cold fronts even in late March.
Keep an eye on the ten-day forecast before you plant, and if you see temps dipping below 50°F at night, you may want to cover your young squash plants with row covers or a simple frost blanket.
These cold snaps are usually brief, and once the sun comes back out, your squash will bounce right back, so don’t panic if you planted a little early.
When To Plant Squash In South Alabama: Fall Timing
When to plant squash in South Alabama isn’t just about spring, because our long, warm autumns allow for a fantastic second crop that many gardeners overlook.
For a fall harvest, when to plant squash in South Alabama shifts to late July through mid-August, giving your squash plenty of time to mature before the first frost arrives.
Our first fall frost typically doesn’t happen until late November or even early December along the coast, so you have a generous window to work with.
1. Count Backwards From Your First Frost Date
The easiest way to figure out when to plant squash in South Alabama for fall is to count backwards from your expected first fall frost.
Most summer squash varieties need about 50 to 60 days from seed to harvest, and winter squash needs a bit longer, usually 80 to 100 days.
So if your first frost is around November 20, you’d plant summer squash in early September, but you’d need to get winter squash in the ground by early August at the latest.
Just remember that summer squash matures quickly, so you can even plant it in early September and still get a good harvest before the cold sets in.
2. Beat The Summer Heat
When to plant squash in South Alabama in the fall is a bit of a balancing act because you’re dealing with extreme July and August heat.
Squash plants can struggle to set fruit when temperatures stay above 90°F for extended periods, so you’ll want to provide some afternoon shade if possible.
You can also plant your fall squash under a shade cloth for the first couple of weeks until the brutal heat of August starts to break.
Once September rolls around and nights cool down, your squash plants will take off and produce like crazy, making the early heat totally worth it.
3. Soil Prep Is Even More Important in Fall
When to plant squash in South Alabama in the fall is also a reminder that your soil has been baking in the summer sun all season.
Work in a couple of inches of compost or aged manure before planting to replenish nutrients and help the soil hold onto moisture.
Mulching around your squash plants in the fall is a game-changer because it keeps the soil cool and conserves water during those warm September days.
A thick layer of straw or shredded leaves around the base of your squash will also help suppress weeds and keep the roots happy.
Best Squash Varieties For South Alabama
Once you’ve nailed down when to plant squash in South Alabama, the next step is picking varieties that actually thrive in our humid, warm climate.
Some squash varieties handle the heat and humidity better than others, so choosing wisely can make a big difference in your harvest.
For summer squash, yellow crookneck and straightneck varieties do really well in South Alabama, as do the classic dark green zucchini varieties.
For winter squash, butternut and acorn squash are solid choices, and they store well if you manage to get a big harvest before the frost.
1. Disease Resistance Is Key
Our hot, humid South Alabama summers can bring on powdery mildew and other fungal diseases that love squash plants.
Look for varieties marked as disease-resistant, like “Pattypan” or “Zephyr” summer squash, which tend to hold up better against common issues.
Also, make sure you give your squash plants plenty of space for air to circulate, because good airflow helps keep those leaves dry and disease-free.
2. Succession Planting For A Longer Harvest
Instead of planting all your squash seeds at once when you figure out when to plant squash in South Alabama, try succession planting.
Plant a small batch every two to three weeks during your spring window, and another batch in your fall window, to keep a steady supply of fresh squash coming.
This way, you’re not drowning in squash all at once, and you’ll have a continuous harvest that lasts for weeks rather than a sudden glut.
So, When To Plant Squash In South Alabama?
When to plant squash in South Alabama comes down to two main windows: early spring from mid-March to early April, and late summer from late July to early September.
The spring planting gives you a great summer harvest, while the fall planting lets you take advantage of our mild autumn weather for another round of fresh squash.
Just remember to wait for that soil to warm up in the spring, and provide some shade and extra mulch for your fall planting to beat the heat.
We hope this guide has helped you figure out when to plant squash in South Alabama so you can enjoy a bountiful crop all season long.