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Zone Guides7 min readMarch 6, 2026
Zone 7b Planting Guide 2026 | Charlotte, Memphis, Dallas Garden Calendar
Complete planting guide for USDA Zone 7b (Charlotte, Memphis, Dallas). Get exact 2026 planting dates, frost dates, and best varieties for zone 7b gardens.
USDA Hardiness Zone 7b Quick Facts
- Minimum Temperature: 5°F to 10°F (-15°C to -12.2°C)
- Average Last Frost: March 10-25 (March 18 average)
- Average First Fall Frost: November 5-20
- Growing Season: 215-240 days
- Best Planting Window: March 25 - April 10 for warm-season crops
Major Cities in Zone 7b
Primary Cities: Charlotte, NC • Memphis, TN • Dallas/Fort Worth, TX • Atlanta, GA (suburbs) • Oklahoma City, OK • Raleigh, NC (suburbs)
Also includes: Parts of North Carolina, Tennessee, Georgia, Texas, Oklahoma, South Carolina, and northern Alabama
Get Your Exact Zone 7b Planting Dates
2026 Zone 7b Planting Calendar
January-February - Indoor Starting
| Crop | Start Date | Transplant Date | Notes |
|---|---|---|---|
| Tomatoes | Feb 1-15 | March 25 - April 10 | Long season allows all varieties |
| Peppers | Jan 25 - Feb 10 | April 1-15 | Even superhots mature fully |
| Eggplant | Feb 5-20 | April 1-15 | Heat-loving — thrives in zone 7b |
| Herbs (Basil) | Feb 15 - March 1 | April 1-15 | Grows vigorously in warm summers |
February-March - Cool Season Crops
| Crop | Direct Sow Date | Harvest | Notes |
|---|---|---|---|
| Peas | Feb 15 - March 10 | April-May | Get them in early — they fade in heat |
| Lettuce | Feb 20 - March 15 | April-May | Must harvest before summer heat |
| Spinach | Feb 15 - March 10 | April-May | Bolts quickly once warm — plant early |
| Radishes | Feb 20 - March 15 | March-April | Fast 20-25 day harvest |
| Carrots | March 1-20 | June-July | Nantes types do well |
| Kale | Feb 20 - March 15 | April-June | Heat-tolerant varieties for spring |
April - Warm Season Planting
| Crop | Plant Date | Harvest Start | Notes |
|---|---|---|---|
| Beans (Bush) | April 1-20 | June-July | Multiple succession plantings possible |
| Corn | April 5-25 | July-August | Full-season and specialty varieties |
| Squash (Summer) | April 1-15 | June-September | Very long harvest window |
| Cucumbers | April 1-15 | June-August | Plant a second round in July |
| Melons | April 10-25 | July-September | Excellent melon climate |
| Okra | April 10-25 | June-October | Thrives in zone 7b heat |
| Sweet Potatoes | April 25 - May 15 | September-October | Plant slips after soil hits 65°F |
Best Varieties for Zone 7b
Tomatoes - Wide Open Selection
- Cherokee Purple (80 days): Outstanding heirloom flavor
- Mortgage Lifter (85 days): Huge beefsteak, thrives in heat
- San Marzano (80 days): Best for sauce and canning
- Celebrity (70 days): Disease-resistant workhorse
- Brandywine (90 days): Classic heirloom with room to mature
- Cherry tomatoes: Sun Gold, Black Cherry, Sweet Million
Peppers - Full Spectrum
- Sweet: Big Bertha, Lunchbox, Jimmy Nardello
- Mild Hot: Poblano, Banana, Shishito, Cubanelle
- Medium Hot: Jalapeño, Serrano, Cayenne
- Superhot: Habanero, Carolina Reaper, Ghost Pepper — all mature fully in zone 7b
Heat-Loving Stars
- Okra: Clemson Spineless, Burgundy, Star of David
- Sweet Potatoes: Beauregard, Jewel, Covington
- Southern Peas: Purple Hull, Zipper Cream, Mississippi Silver
- Melons: Ambrosia, Hale's Best, Sugar Baby watermelon
Cool Season Crops
- Lettuce: Heat-tolerant varieties: Jericho, Muir, New Red Fire
- Spinach: Space, Corvair (bolt-resistant)
- Peas: Wando (heat-tolerant), Sugar Sprint
- Carrots: Nantes, Nelson, Mokum
Zone 7b Frost Information
Critical Frost Dates for 2026
- Last Spring Frost: March 18 (average) — Range: March 10-25
- Safe Planting Date: March 25 - April 5 (1 week after average last frost)
- First Fall Frost: November 12 (average) — Range: November 5-20
- Latest Recorded Spring Frost: April 5 (Charlotte area)
2026 Climate Considerations for Zone 7b
- Early Warmth: Zone 7b often sees 70°F+ days in February — don't be fooled, late frosts still come
- Summer Heat: Extended 90-100°F periods in July-August — provide afternoon shade for cool-season holdovers
- Humidity: Charlotte and Memphis are humid — choose disease-resistant varieties and space plants for airflow
- Long Fall: Mild November means an excellent fall garden with second plantings
Frost Protection Strategies
- Row Covers: Useful for early spring transplants and extending fall harvest
- Shade Cloth: 30-40% shade cloth is more important than frost cloth in zone 7b — summer heat kills more plants than cold
- Mulch: 3-4 inches of straw mulch conserves moisture and keeps soil cool in summer
- Drip Irrigation: Essential for hot, dry stretches in July-August
Zone 7b Success Tips
Soil and Site Preparation
- Soil Test: Piedmont clay (Charlotte area) needs gypsum and organic matter; Texas blackland prairie needs sulfur for alkaline soil
- Drainage: Heavy clay is common — raised beds solve drainage issues
- pH: Varies widely by region — test before amending
- Organic Matter: Red clay and blackland both improve dramatically with annual compost additions
Season Extension Techniques
- Two-season garden: Zone 7b is ideal for spring AND fall gardens
- Fall planting: Direct sow lettuce, spinach, kale, carrots, beets in August-September
- Winter greens: Kale, collards, and spinach often overwinter in zone 7b with light protection
- Succession planting: Plant beans and cucumbers every 3 weeks from April through July
Common Zone 7b Mistakes
- Ignoring the fall garden: The mild fall is your second chance — don't waste it
- Not managing summer heat: Shade cloth, mulch, and consistent watering prevent midsummer crop failure
- Planting cool-season crops too late: Lettuce and spinach must go in by mid-March or they bolt
- Underestimating disease pressure: Humid summers mean blight and mildew — choose resistant varieties and rotate crops
Ready to Master Zone 7b Gardening?
→ Get Your Personalized Zone 7b Calendar
Exact dates, variety recommendations, and frost alerts for your specific location
Monthly Zone 7b Garden Tasks
January-February
- Start pepper, eggplant, and tomato seeds indoors
- Direct sow peas outdoors (late February)
- Prune fruit trees and berry bushes
- Prepare beds with compost as soon as soil is workable
March
- Direct sow lettuce, spinach, radishes, carrots, kale
- Transplant tomatoes and peppers after last frost (late March)
- Set up trellises and supports
- Mulch around transplants
April
- Plant beans, corn, squash, cucumbers, melons
- Plant okra and sweet potato slips once soil is warm
- Side-dress established plants
- Begin pest monitoring
May-June
- Harvest cool-season crops before heat
- Maintain mulch and watering schedule
- Succession plant beans and cucumbers
- Install shade cloth for remaining cool-season plants
August-September
- Plant fall garden: lettuce, spinach, kale, carrots, beets, radishes
- Start broccoli and cauliflower transplants for fall
- Reduce watering on tomatoes to concentrate flavor
- Begin fall cleanup of spent summer crops
Related Zone Guides
- Zone 7a Planting Guide
- Zone 6b Planting Guide
- Complete Spring Planting Calendar
- Tomato Planting by Zone
Last updated: March 6, 2026 | Zone 7b data based on USDA Plant Hardiness Zone Map 2023 and NOAA climate normals