When to Plant Celosia in Colorado Springs, Colorado (80913)

Location

Colorado Springs, Colorado

ZIP Code

80913

USDA Zone

Last Frost

Monday, April 20, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Monday, March 9, 2026

Transplant Outdoors

Monday, April 27, 2026

Based on last frost Monday, April 20, 2026 · Zone 6a

Pro tip: Start Celosia seeds indoors 6 weeks before your last frost date, then transplant outdoors around Monday, April 27, 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 Colorado Springs?

Get your seeds now so they're ready by Monday, March 9, 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 Colorado Springs, Colorado? +

In Colorado Springs (Zone 6a), start Celosia seeds indoors around Monday, March 9, 2026 and transplant outdoors around Monday, April 27, 2026.

What is the last frost date for Colorado Springs, Colorado? +

The average last spring frost date for Colorado Springs, Colorado (ZIP 80913) is around Monday, April 20, 2026. This is based on NOAA climate normals for USDA Zone 6a.

How long does Celosia take to grow? +

Celosia typically matures in about 75 days from transplanting. In Colorado Springs, that means you can expect harvest around Monday, April 27, 2026 plus 75 days.

Should I start Celosia indoors or direct sow in Colorado? +

Celosia should be started indoors 6 weeks before your last frost date. In Colorado Springs, that means starting around Monday, March 9, 2026.

📚 More Celosia Planting Guides

🗺️

Celosia in Colorado

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 6a Celosia Guide

All cities in your zone · Avg dates

→

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Growing Celosia in Zone 6a

Celosia (Celosia argentea) is a popular garden vegetable. In Colorado Springs, Colorado, which is in USDA Hardiness Zone 6a, you should start seeds indoors around Monday, March 9, 2026.

Your average last frost date is Monday, April 20, 2026. Plan to transplant your Celosia seedlings outdoors around Monday, April 27, 2026, about 1 weeks after your last frost date.