North Charleston Vegetable Planting Calendar | Urban Farmer

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North Charleston Vegetable Planting Calendar

Use North Charleston climate patterns to see this month’s garden tasks and crop-by-crop planting windows for the maritime lower Coastal Plain near Charleston Harbor.

Official 2023 USDA South Carolina Plant Hardiness Zone Map
USDA Zones 9aMost North Charleston neighborhoods fall in USDA Zones 9a
Last spring frostTypical date: February 20
First fall frostTypical date: December 10
Cool season

Plant through winter

Broccoli, lettuce, peas, carrots, radishes and leafy greens perform best from fall through early spring.

Warm season

Use spring warmth

Use Clemson Extension’s Coastal Plain windows: begin cool crops in winter, plant warm crops as soils warm, and take advantage of the long autumn season for a second vegetable garden.

Late summer

Restart the cool garden

Begin fall brassicas indoors and prepare beds for direct-sown roots and greens as temperatures moderate.

Local dates, crop by crop

North Charleston Planting Dates

Choose a season and search for a crop to see when to start seeds indoors, move plants outside, direct sow and finish planting in the North Charleston area.

North Charleston–Charleston, Berkeley and Dorchester CountiesUSDA Zones 9a · typical last frost February 20 · typical first frost December 10

Spring planting

Planting Dates for Spring

Dates use North Charleston valley-floor climate timing. Intense summer heat, dry air and nearby foothill elevation can change planting and harvest windows. Always check soil temperature and the 10-day forecast before planting.

Crop Start seeds indoors Transplant or plant outdoors Direct sow outdoors Last recommended planting Shop

Use the dates with confidence

How to Read This Calendar

1

Start indoors

Sow in trays under strong light. The window is timed so seedlings reach transplant size without becoming root-bound.

2

Transplant or plant

Harden seedlings off for about a week. Perennial crowns, sets and seed potatoes are included in this column.

3

Direct sow

Plant seed directly into prepared soil. Cool-season crops can begin before frost; heat-loving crops need warm soil.

4

Last planting

This is the practical end of the selected window—not a guarantee. Variety maturity and unusual weather can move it.

Keep soil working after harvest

Fall Cover Crop Planting Calendar

These windows are calculated from this city’s approximate first fall frost. Sow into an open bed after harvesting vegetables, then follow the selected crop’s product directions.

Cover crop Best for Approx. planting window Winter behavior
Buckwheat Quick biomass · pollinators Oct 1–Oct 15 Frost-killed
Oats Biomass · nutrient capture Oct 1–Oct 29 Usually winter-killed
Field Peas Nitrogen · cool-season growth Oct 1–Oct 29 Often winter-killed
Daikon Radish Compaction · nutrient capture Oct 1–Oct 29 Usually winter-killed
Crimson Clover Nitrogen · pollinators Oct 15–Oct 29 Overwinters where adapted
Annual Ryegrass Roots · erosion control Oct 15–Nov 12 Manage before seed set
Hairy Vetch Nitrogen · spring biomass Oct 29–Nov 12 Overwinters in many areas
Cereal Rye Erosion · weeds · biomass Oct 29–Nov 26 Very winter-hardy
Winter Wheat Erosion · nutrient capture Oct 29–Nov 26 Winter-hardy

Planting windows are planning estimates. Check the product page for seeding rate, regional adaptation, inoculation needs, and termination timing.

North Charleston soil checkpoints

Let Soil Temperature Be the Final Check

Calendar dates start the conversation. A simple soil thermometer helps confirm that the seedbed is actually ready.

40–50°FPeas, spinach, radishes and other hardy crops
55–60°FBeans, corn and many moderately warm crops
65°F+Cucumbers, squash, melons, okra and other heat lovers
Current North Charleston soil temperatureLoading…Modeled near 2½ inches deep
Checking current conditions

Use this modeled reading as a local reference, then confirm conditions in your own garden with a soil thermometer.

Weather data by Open-Meteo

Selected for the current planting window

Seeds to Plant Now

References: Clemson Cooperative Extension Planning a Garden planting guidance for South Carolina’s Coastal Plain and Piedmont regions, with locally adjusted frost-date planning estimates; USDA 2023 Plant Hardiness Zone Map; and Open-Meteo modeled soil-temperature data. the maritime lower Coastal Plain near Charleston Harbor contains meaningful neighborhood microclimates, so dates and live conditions are planning estimates, not guarantees.