When to Plant Kohlrabi in Greenville, South Carolina (29607)

Location

Greenville, South Carolina

ZIP Code

29607

USDA Zone

Last Frost

Friday, March 20, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Friday, February 20, 2026

Transplant Outdoors

Friday, March 6, 2026

Based on last frost Friday, March 20, 2026 · Zone 8a

Pro tip: Start Kohlrabi seeds indoors 4 weeks before your last frost date, then transplant outdoors around Friday, March 6, 2026.

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🌿 Plant Details

Scientific Name Brassica oleracea var. gongylodes

Days to Maturity 55 days

Mature Height 12-18"

Spread 8"

Type Bulb

Fruit Size Small-Medium (2-3 inch bulb)

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Regular (consistent moisture prevents cracking)

↔️

Spacing

6" apart

🌱

Planting Depth

0.5" deep

Seeds typically germinate in 4-7 days

Ready to Plant Kohlrabi in Greenville?

Get your seeds now so they're ready by Friday, February 20, 2026.

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🤝 Good Companions

BeetOnionCucumberHerb

⚠️ Avoid Planting Near

TomatoPepperStrawberry

🤝

Full Companion Planting Guide for Kohlrabi

See which plants help Kohlrabi thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🔴 Difficult

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow plants to bolt in year 2. Harvest seed pods just before they shatter.

Processing

Thresh dried seed stalks in a bag, separate seeds from chaff by winnowing.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Brassica oleracea — crosses with broccoli, cabbage, kale, and Brussels sprouts. Isolate by 1000 feet for purity.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 4 per sq ft of Kohlrabi. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Kohlrabi in Greenville, South Carolina? +

In Greenville (Zone 8a), start Kohlrabi seeds indoors around Friday, February 20, 2026 and transplant outdoors around Friday, March 6, 2026.

What is the last frost date for Greenville, South Carolina? +

The average last spring frost date for Greenville, South Carolina (ZIP 29607) is around Friday, March 20, 2026. This is based on NOAA climate normals for USDA Zone 8a.

How long does Kohlrabi take to grow? +

Kohlrabi typically matures in about 55 days from transplanting. In Greenville, that means you can expect harvest around Friday, March 6, 2026 plus 55 days.

Should I start Kohlrabi indoors or direct sow in South Carolina? +

Kohlrabi should be started indoors 4 weeks before your last frost date. In Greenville, that means starting around Friday, February 20, 2026.

📚 More Kohlrabi Planting Guides

🗺️

Kohlrabi in South Carolina

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 8a Kohlrabi Guide

All cities in your zone · Avg dates

→

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Growing Kohlrabi in Zone 8a

Kohlrabi (Brassica oleracea var. gongylodes) is a popular garden vegetable. In Greenville, South Carolina, which is in USDA Hardiness Zone 8a, you should start seeds indoors around Friday, February 20, 2026.

Your average last frost date is Friday, March 20, 2026. Plan to transplant your Kohlrabi seedlings outdoors around Friday, March 6, 2026, about -2 weeks after your last frost date.