🥬 Can I Plant Arugula in Colorado Springs, CO?
Temperature conditions are suitable for Arugula. Highs near 94°F are on the warm side — make sure plants have plenty of water.
Growing Arugula in Colorado Springs
Colorado Springs at 6,035 feet sits in Zone 5b with one of the shortest growing seasons on this list — about 140 days. Late spring frosts can arrive into mid-May, and first fall frosts can come as early as late September. High-altitude sun intensity and dry air require consistent irrigation. Cold frames, row covers, and raised beds with black plastic mulch are essential tools for Colorado Springs gardeners.
In Colorado Springs (last frost around May 10), arugula can go out around March — approximately 6 weeks before the last expected frost, making it an early-season opportunity.
Arugula thrives between 40°F and 65°F. It tolerates temperatures as low as 28°F, making it a candidate for early spring planting before the last frost date. Expect 20–40 days from transplant to first harvest. Fast-growing. Bolts quickly in heat — succession plant every 2 weeks.
Frequently Asked Questions
When can I plant arugula in Colorado Springs, CO?
In Colorado Springs (last frost around May 10), arugula can go out around March — approximately 6 weeks before the last expected frost, making it an early-season opportunity.
What is the USDA hardiness zone for Colorado Springs?
Colorado Springs, CO is in USDA Plant Hardiness Zone 5b. The last expected spring frost is around May 10, and the first fall frost arrives around September 30. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.
Is it safe to plant arugula outside in Colorado Springs right now?
That depends on the current weather forecast. Arugula needs temperatures above 28°F (ideally 40–65°F) to thrive. CanIPlant checks your real 7-day forecast and any active frost alerts to give you a live YES, NO, or WAIT answer — just enter your ZIP code.
Can I grow arugula in Colorado Springs 2026?
Yes — Arugula grows well in Colorado Springs, CO. With a Zone 5b climate and a growing season of ~143 days, Colorado Springs is well-suited for cool-season crops like arugula. As a frost-tolerant crop, arugula can even go out a few weeks before the last frost date.
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