April in Texas is prime time to get your hands dirty. The threat of frost has passed in most of the state, the soil is warming up, and the long, scorching summer hasn't arrived yet. If you're going to plant one thing this month — plant everything. Here's what you need to know.
Texas Growing Zones: Know Yours First
Texas spans five USDA hardiness zones, which means planting advice that works in El Paso won't necessarily apply in Houston. Here's a quick breakdown:
- Zone 8a (8°F to 10°F) — Panhandle, West Texas highlands (Amarillo, Lubbock)
- Zone 8b (10°F to 15°F) — Dallas-Fort Worth, Austin, San Antonio
- Zone 9a (20°F to 25°F) — Houston, Corpus Christi, parts of the Rio Grande Valley
- Zone 9b (25°F to 30°F) — South Texas coast
- Zone 10a (30°F to 35°F) — Brownsville and the lower Rio Grande Valley
The further south you are, the more of a year-round growing advantage you have. But across all zones, April is a sweet spot.
Last Frost Dates by Texas City
Your last frost date is the most important number in your garden. In Texas:
- Amarillo (Zone 7b): April 14
- Dallas (Zone 8a/8b): March 10–15
- Austin (Zone 8b): March 8
- San Antonio (Zone 8b/9a): February 15–March 1
- Houston (Zone 9a): February 15
- Brownsville (Zone 10a): January 15 or frost-free
If you're in DFW or Austin, you're likely clear for warm-season planting by mid-April. Houston and San Antonio gardeners can push even earlier. Amarillo growers should wait until after April 14 to be safe.
Vegetables to Plant in April
April is ideal for direct-sowing or transplanting warm-season vegetables across most of Texas:
Safe to plant now across all Texas zones:
- Tomatoes — Get transplants in the ground as soon as your last frost has passed. Choose heat-tolerant varieties like Celebrity, Heatmaster, or Sweet 100.
- Peppers — Bell, jalapeño, serrano, and poblano all love the April soil temperatures (60°F+).
- Cucumbers — Fast-growing and heat-tolerant. Plant seeds directly; they'll take off quickly.
- Squash (summer) — Zucchini and yellow squash thrive in April. Watch for squash vine borers later in summer.
- Green beans — Bush beans are perfect for April. They grow fast and love warm soil.
- Sweet corn — Plant in blocks, not rows, for good pollination. Wait until soil temps hit 60°F.
- Okra — A Texas classic. Wait until it's consistently warm; okra sulks in cool soil.
- Black-eyed peas — Low maintenance and very heat tolerant. A Texas garden staple.
Still going strong from early spring:
- Lettuce and spinach — Wrapping up their season. Plant bolt-resistant varieties and harvest before the heat arrives.
- Broccoli and cabbage — Get these harvested soon; they'll bolt in summer heat.
Herbs to Start in April
Texas heat is brutal for some herbs but perfect for others. April is the last good window before summer punishes cool-season herbs:
- Basil — Loves heat. Plant transplants now and it'll thrive all summer.
- Cilantro — Bolt-resistant varieties can go in now. Expect to replant every 3–4 weeks as it bolts.
- Rosemary — Drought-tolerant, loves Texas heat. Plant once and it'll grow for years.
- Thyme — Hardy and low-maintenance. A permanent fixture in Texas herb gardens.
- Lemon balm — Thrives in the Texas sun and spreads happily in raised beds.
Flowers for April Planting
- Zinnias — Direct sow now for non-stop color through October. Texas zinnias go wild.
- Marigolds — Great companion plants that deter pests. Plant near tomatoes and peppers.
- Sunflowers — Direct sow after last frost. They'll track the Texas sun beautifully.
- Celosia — Heat-loving, drought-tolerant, and vivid. A summer showstopper.
- Lantana — Perennial in most of Texas. Plant once, enjoy for years. Butterflies love it.
Texas-Specific Tips
Water deeply, not frequently. Texas soil can be clay-heavy in the Hill Country and DFW, or sandy in West Texas. Either way, deep watering encourages roots to go down rather than staying near the surface. Aim for 1–2 inches per week.
Mulch is your best friend. A 3–4 inch layer of mulch around your plants can cut water needs by up to 50% and keep roots cooler when summer temps spike to 100°F.
Watch the clay soil. If you're in DFW or Austin and planting in native clay, amend with compost before planting. Clay holds moisture when wet and cracks when dry — neither is ideal for most vegetables without improvement.
Shade cloth for summer. Start thinking about it now. A 30–40% shade cloth over tomatoes in late June and July can mean the difference between fruit set and heat stress.
Get Your Personalized April Planting List
Every Texas garden is a little different. Your specific zip code determines your exact zone, last frost date, and the precise plants that'll perform best for you right now.
Use GreenPrint to enter your Texas zip code and get a personalized plant plan — including what's in season this month, difficulty ratings, and planting tips for your exact zone.
Happy planting, Texas. It's go time. 🌿