When to Plant Celery in Bethany Beach, Delaware (19930)

Location

Bethany Beach, Delaware

ZIP Code

19930

USDA Zone

Last Frost

Friday, March 20, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Friday, January 9, 2026

Transplant Outdoors

Friday, April 3, 2026

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

Pro tip: Start Celery seeds indoors 10 weeks before your last frost date, then transplant outdoors around Friday, April 3, 2026.

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🌿 Plant Details

Scientific Name Apium graveolens

Days to Maturity 130 days

☀️ Growing Requirements

☀️

Sun

Full Sun

💧

Water

Regular

Seeds typically germinate in 8-28 days

Ready to Plant Celery in Bethany Beach?

Get your seeds now so they're ready by Friday, January 9, 2026.

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🤝 Good Companions

CosmosDaisySnapDragon

⚠️ Avoid Planting Near

CornAster

🤝

Full Companion Planting Guide for Celery

See which plants help Celery 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

Celery is biennial — it seeds in year 2. Harvest umbels just before seeds shatter in summer.

Processing

Cut seed heads into bags, dry 2 weeks, thresh to release seeds.

Seed Viability

Up to 3 years when stored cool, dark, and dry.

Pro Tip

In cold climates, dig celery in fall, store roots in a root cellar, and replant in spring for year-2 flowering.

Frequently Asked Questions

When should I plant Celery in Bethany Beach, Delaware? +

In Bethany Beach (Zone 8a), start Celery seeds indoors around Friday, January 9, 2026 and transplant outdoors around Friday, April 3, 2026.

What is the last frost date for Bethany Beach, Delaware? +

The average last spring frost date for Bethany Beach, Delaware (ZIP 19930) is around Friday, March 20, 2026. This is based on NOAA climate normals for USDA Zone 8a.

How long does Celery take to grow? +

Celery typically matures in about 130 days from transplanting. In Bethany Beach, that means you can expect harvest around Friday, April 3, 2026 plus 130 days.

Should I start Celery indoors or direct sow in Delaware? +

Celery should be started indoors 10 weeks before your last frost date. In Bethany Beach, that means starting around Friday, January 9, 2026.

📚 More Celery Planting Guides

🗺️

Celery in Delaware

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 8a Celery Guide

All cities in your zone · Avg dates

→

Other Plants for Bethany Beach

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Growing Celery in Zone 8a

Celery (Apium graveolens) is a popular garden vegetable. In Bethany Beach, Delaware, which is in USDA Hardiness Zone 8a, you should start seeds indoors around Friday, January 9, 2026.

Your average last frost date is Friday, March 20, 2026. Plan to transplant your Celery seedlings outdoors around Friday, April 3, 2026, about 2 weeks after your last frost date.