When to Plant Verbena in Clarks Hill, South Carolina (29821)

Location

Clarks Hill, South Carolina

ZIP Code

29821

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Sunday, January 18, 2026

Transplant Outdoors

Sunday, March 29, 2026

Based on last frost Sunday, March 15, 2026 · Zone 8b

Pro tip: Start Verbena seeds indoors 8 weeks before your last frost date, then transplant outdoors around Sunday, March 29, 2026.

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🌿 Plant Details

Scientific Name Verbena hybrida

Days to Maturity 85 days

Mature Height 6-18"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

12" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Verbena in Clarks Hill?

Get your seeds now so they're ready by Sunday, January 18, 2026.

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🤝 Good Companions

MarigoldPetuniaSalvia

🤝

Full Companion Planting Guide for Verbena

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🌍 Flower Garden Soil ✂️ Pruning Shears 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

⚠️ Many varieties are F1 hybrid — look for OP/heirloom types

When to Harvest Seed

Allow flower clusters to dry on the plant. Collect dry seed clusters.

Processing

Break apart dry clusters to release seeds, dry 1 week in open envelope.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Most garden verbenas are F1 hybrids. Verbena bonariensis is a good open-pollinated alternative that grows true from seed.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 32 plants of Verbena. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Verbena in Clarks Hill, South Carolina? +

In Clarks Hill (Zone 8b), start Verbena seeds indoors around Sunday, January 18, 2026 and transplant outdoors around Sunday, March 29, 2026.

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

The average last spring frost date for Clarks Hill, South Carolina (ZIP 29821) is around Sunday, March 15, 2026. This is based on NOAA climate normals for USDA Zone 8b.

How long does Verbena take to grow? +

Verbena typically matures in about 85 days from transplanting. In Clarks Hill, that means you can expect harvest around Sunday, March 29, 2026 plus 85 days.

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

Verbena should be started indoors 8 weeks before your last frost date. In Clarks Hill, that means starting around Sunday, January 18, 2026.

📚 More Verbena Planting Guides

🗺️

Verbena in South Carolina

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 8b Verbena Guide

All cities in your zone · Avg dates

→

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Growing Verbena in Zone 8b

Verbena (Verbena hybrida) is a popular garden vegetable. In Clarks Hill, South Carolina, which is in USDA Hardiness Zone 8b, you should start seeds indoors around Sunday, January 18, 2026.

Your average last frost date is Sunday, March 15, 2026. Plan to transplant your Verbena seedlings outdoors around Sunday, March 29, 2026, about 2 weeks after your last frost date.