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When to Plant Celosia in Beach, North Dakota (58621)

Location

Beach, North Dakota

ZIP Code

58621

USDA Zone

4a

Last Frost

Friday, May 15, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Friday, April 3, 2026

Transplant Outdoors

Friday, May 22, 2026

Based on last frost Friday, May 15, 2026 · Zone 4a

Pro tip: Start Celosia seeds indoors 6 weeks before your last frost date, then transplant outdoors around Friday, May 22, 2026.

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🌿 Plant Details

Scientific Name Celosia argentea
Days to Maturity 75 days
Mature Height 12-36"
Spread 9"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Moderate (1 inch/week)

↔️

Spacing

9" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 10-14 days

Ready to Plant Celosia in Beach?

Get your seeds now so they're ready by Friday, April 3, 2026.

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🤝 Good Companions

MarigoldZinniaBasil
🤝

Full Companion Planting Guide for Celosia

See which plants help Celosia 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

🟢 Easy
✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Allow plume or cockscomb heads to dry fully on the plant until fluffy or papery.

Processing

Rub dried heads gently between hands over a bowl to release tiny seeds. Dry 1 week.

Seed Viability

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

Pro Tip

Celosia self-sows readily in warm climates. Seeds are tiny — store in small labeled packets.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 56 plants of Celosia. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Celosia in Beach, North Dakota? +

In Beach (Zone 4a), start Celosia seeds indoors around Friday, April 3, 2026 and transplant outdoors around Friday, May 22, 2026.

What is the last frost date for Beach, North Dakota? +

The average last spring frost date for Beach, North Dakota (ZIP 58621) is around Friday, May 15, 2026. This is based on NOAA climate normals for USDA Zone 4a.

How long does Celosia take to grow? +

Celosia typically matures in about 75 days from transplanting. In Beach, that means you can expect harvest around Friday, May 22, 2026 plus 75 days.

Should I start Celosia indoors or direct sow in North Dakota? +

Celosia should be started indoors 6 weeks before your last frost date. In Beach, that means starting around Friday, April 3, 2026.

📚 More Celosia Planting Guides

🗺️

Celosia in North Dakota

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4a Celosia Guide

All cities in your zone · Avg dates

→

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Growing Celosia in Zone 4a

Celosia (Celosia argentea) is a popular garden vegetable. In Beach, North Dakota, which is in USDA Hardiness Zone 4a, you should start seeds indoors around Friday, April 3, 2026.

Your average last frost date is Friday, May 15, 2026. Plan to transplant your Celosia seedlings outdoors around Friday, May 22, 2026, about 1 weeks after your last frost date.