When to Plant Celery in Hagerstown, Maryland (21747)

Location

Hagerstown, Maryland

ZIP Code

21747

USDA Zone

Last Frost

Sunday, April 5, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Sunday, January 25, 2026

Transplant Outdoors

Sunday, April 19, 2026

Based on last frost Sunday, April 5, 2026 · Zone 7b

Pro tip: Start Celery seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, April 19, 2026.

🌿 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 Hagerstown?

Get your seeds now so they're ready by Sunday, January 25, 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 Hagerstown, Maryland? +

In Hagerstown (Zone 7b), start Celery seeds indoors around Sunday, January 25, 2026 and transplant outdoors around Sunday, April 19, 2026.

What is the last frost date for Hagerstown, Maryland? +

The average last spring frost date for Hagerstown, Maryland (ZIP 21747) is around Sunday, April 5, 2026. This is based on NOAA climate normals for USDA Zone 7b.

How long does Celery take to grow? +

Celery typically matures in about 130 days from transplanting. In Hagerstown, that means you can expect harvest around Sunday, April 19, 2026 plus 130 days.

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

Celery should be started indoors 10 weeks before your last frost date. In Hagerstown, that means starting around Sunday, January 25, 2026.

📚 More Celery Planting Guides

🗺️

Celery in Maryland

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 7b Celery Guide

All cities in your zone · Avg dates

→

Other Plants for Hagerstown

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Growing Celery in Zone 7b

Celery (Apium graveolens) is a popular garden vegetable. In Hagerstown, Maryland, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, January 25, 2026.

Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Celery seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.