When to Plant Impatiens in Colorado City, Arizona (86021)

Location

Colorado City, Arizona

ZIP Code

86021

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 Impatiens seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, April 19, 2026.

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🌿 Plant Details

Scientific Name Impatiens walleriana

Days to Maturity 60 days

Mature Height 8-18"

Spread 12"

☀️ Growing Requirements

☀️

Sun

Partial to Full Shade (2-4 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

8" apart

🌱

Planting Depth

0.125" deep

Seeds typically germinate in 14-21 days

Ready to Plant Impatiens in Colorado City?

Get your seeds now so they're ready by Sunday, January 25, 2026.

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🤝 Good Companions

BegoniaFernHostas

🤝

Full Companion Planting Guide for Impatiens

See which plants help Impatiens 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

Seed pods explode when touched — bag ripening pods with a rubber band before they burst.

Processing

Collect seeds from bags as pods burst. Tiny seeds — dry on paper towel for 1 week.

Seed Viability

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

Pro Tip

Most garden impatiens are F1 hybrids. New Guinea impatiens are almost always hybrid — look for old-fashioned OP varieties.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 72 plants of Impatiens. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Impatiens in Colorado City, Arizona? +

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

What is the last frost date for Colorado City, Arizona? +

The average last spring frost date for Colorado City, Arizona (ZIP 86021) is around Sunday, April 5, 2026. This is based on NOAA climate normals for USDA Zone 7b.

How long does Impatiens take to grow? +

Impatiens typically matures in about 60 days from transplanting. In Colorado City, that means you can expect harvest around Sunday, April 19, 2026 plus 60 days.

Should I start Impatiens indoors or direct sow in Arizona? +

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

📚 More Impatiens Planting Guides

🗺️

Impatiens in Arizona

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 7b Impatiens Guide

All cities in your zone · Avg dates

→

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Growing Impatiens in Zone 7b

Impatiens (Impatiens walleriana) is a popular garden vegetable. In Colorado City, Arizona, 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 Impatiens seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.