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USDA hardiness zone lookup

Shreveport, LA — USDA Zone 8b

Shreveport, Louisiana · 242-day growing season

Frost dates and growing season in Shreveport

USDA hardiness zoneZone 8b
Average last spring frostMarch 14
Average first fall frostNovember 11
Growing season length~242 days
Temperature range (F)10 to 20°F
Temperature range (C)-12 to -7°C

All of Shreveport's mapped ZIP codes fall in the same hardiness band, Zone 8b.

These are 50%-probability averages modeled from Shreveport's USDA hardiness zone and regional climate normals — not a single-station reading. In a typical year the last spring frost will have passed by March 14, but a colder-than-average year can run 1-2 weeks later. Plant tender crops (tomatoes, peppers, basil) once both soil and night temperatures are consistently warm — a thermometer beats the calendar.

Growing season in Shreveport

Shreveport, Louisiana sits in USDA Zone 8b, with roughly 242 frost-free days between an average last spring frost around March 14 and a first fall frost around November 11. That is a near year-round season — the limiting factor is summer heat, not frost, so schedule cool-season crops for winter and protect tender ones from extreme highs.

What grows in Shreveport

Shreveport falls in USDA Zone 8b, so the same hardiness constraints apply as the full Zone 8 guide. Vegetables, herbs, and fruit trees rated to Zone 8b (or hardier) will overwinter here in a typical year.

What to plant in Shreveport this week

Shreveport is in high summer — most spring plantings are in. Keep an eye on watering and start planning your fall crop. Cool-season seedlings (broccoli, cabbage, lettuce) can be started indoors for a fall transplant.

Full planting calendar for Shreveport

Crop-by-crop sowing, transplant, and harvest dates calibrated to zone 8 averages:

ZIP codes in Shreveport

Drill down to the precise frost window and planting calendar for a specific ZIP in Shreveport:

Local microclimate notes

Zone tables give you the average — but Shreveportgardens vary. South-facing walls and paved areas can run a full half-zone warmer than the published rating. Low-lying spots, frost pockets, and shaded north sides can run colder. If you've gardened here a few seasons, your own frost record — the last time you actually got frost damage — beats any national average.

Source and methodology

Hardiness zone from the USDA Plant Hardiness Zone Map (2023 revision). Frost-date and growing-season figures are modeled from Shreveport's USDA hardiness zone and regional NOAA 1991-2020 climate normals — zone-level estimates, not a per-station record, so treat them as planning guidance and confirm against your own local frost history. Crop recommendations draw on US Cooperative Extension references, curated by the Growli editorial team. Last reviewed June 2026.

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