Quick planting window
| Start indoors | Not recommended; sow seeds directly instead |
|---|---|
| Transplant | Not recommended; sow seeds directly to avoid root disturbance |
| Sow seeds | June to July |
| Estimated harvest | July to August |
| Risk | Medium risk |
Month calendar
Scan the year by month to see seed starting, sowing, transplanting, and harvest timing.
Green Bean is frost sensitive. Wait until the conservative transplant or sowing window for Colorado.
Next: ZIP code personalization
This is a state-level planning window based on typical frost timing and crop rules. Use local Extension guidance or a ZIP code frost-date tool before planting.
Planning notes
Days to maturity
55
Covered states
Colorado
Frost window
May to June / September to October
Front Range, mountain, and western slope gardens can have very different timing.
Green Bean growing notes
The calendar window is only the first step. These growing details affect survival, plant vigor, and harvest quality.
Sun
Full sun.
Soil
Warm, well-drained soil.
Spacing
Bush beans 4-6 inches; pole beans 6 inches with support.
Container
Bush beans work in medium containers; pole beans need support.
Watering
Water regularly during flowering and pod set.
Common mistake
Starting too early in cold, wet soil.
Beginner tip
Sow directly outdoors; beans usually dislike transplanting.
Month window table
| Crop | Spring transplant / sow | Spring harvest | Fall transplant / sow | Fall harvest |
|---|---|---|---|---|
| Green Bean | June to July | July to August | July to August | September to October |
Sources and limits
This page uses Colorado state-level frost windows, USDA zone ranges, and crop rules for planning. It does not replace local Extension or county-level guidance.
FAQ
When should I start green bean seeds indoors in Colorado?
Green Bean is usually not started indoors. Sow outdoors in the recommended window instead.
When should I transplant green bean in Colorado?
Green Bean is usually better sown outdoors because transplanting can disturb the roots.
Can I sow green bean outdoors in Colorado?
Yes. The spring outdoor sowing window is about June to July, assuming soil and night temperatures are suitable.
When can I harvest green bean in Colorado?
Spring planting estimates a harvest around July to August; fall planting estimates about September to October. Variety and weather can shift this by several weeks.
Is green bean risky in Colorado?
Green Bean is frost sensitive. Wait until the conservative transplant or sowing window for Colorado. For fall: Green Bean is frost sensitive. Fall planting in Colorado needs enough warm days before first frost.
Do local differences inside Colorado matter?
Front Range, mountain, and western slope gardens can have very different timing. Treat this as a state-level starter window and confirm with a local Extension or frost-date tool before planting.
What growing details matter most for green bean?
Full sun. Warm, well-drained soil. Common mistake: Starting too early in cold, wet soil.
Is this ZIP-code accurate?
No. This page uses state-level windows; ZIP-code frost dates, USDA zone matching, and reminder calendars are planned for the next phase.