Unsure when to plant in the Mile High City? The Quick Start Planting Calendar
—part of The Mile High Garden Planning Series
—is your simple, no-guesswork guide to timing your garden right in Denver’s unique climate.
Designed for beginners and busy gardeners alike, this easy-to-follow calendar breaks down exactly what to plant and when, based on real conditions in the Mile High region. No more second-guessing frost dates or missing your planting window.
Inside, you’ll find clear, seasonal planting guidance for common vegetables, herbs, and flowers—so you can confidently plan your garden from early spring through fall. Whether you're starting seeds indoors, direct sowing outside, or transplanting, this guide keeps you on track.
You’ll learn how to work with
Denver’s short growing season, unpredictable weather, and intense sun—so your plants have the best chance to thrive.
If you’ve ever felt behind, overwhelmed, or unsure of your timing, this calendar gives you a clear starting point and steady guidance all season long.
