When to Plant Kohlrabi in New Mexico (2026 Guide)
Kohlrabi is a unique brassica that is perfect for New Mexico gardeners looking to add something different to their vegetable patch. Known for its swollen, bulb-like stem, this veggie has a crisp texture and a mild, sweet flavor reminiscent of broccoli. As kohlrabi thrives best in cooler temperatures, it's an excellent option for both spring and fall planting in areas like Albuquerque and Las Cruces.
In New Mexico, understanding the frost dates is crucial for successful kohlrabi cultivation. For example, in Zone 5b, the average last spring frost is around May 2, while in Zone 6a, it occurs earlier, on April 21. This means that planting times will vary depending on your specific location and growing conditions, allowing you to enjoy a bountiful harvest in just 45-60 days.
The growing season for kohlrabi also offers flexibility—especially considering the range of environments present in New Mexico, where cities like Santa Fe and Hobbs may experience differing climates. With distinct differences in frost-free seasons, understanding when to plant kohlrabi is essential for producing the best flavor and yield. Be sure to incorporate your spring and fall planting schedules into your gardening plans.
Planting Schedule by USDA Zone in New Mexico
| Zone | Indoor start | Transplant out | Direct sow | Harvest |
|---|---|---|---|---|
| Zone 5b | Start indoors from March 1 – March 15, ~6–8 weeks before May 2 | Transplant outdoors from May 15 – May 30, after the last frost | Direct sow from April 20 – May 10 for a late spring crop | Harvest from June 25 – July 15 for the best flavor and texture |
| Zone 6a | Start indoors from February 15 – March 1, ~6–8 weeks before April 21 | Transplant outdoors from May 1 – May 15, after the last frost | Direct sow from April 1 – April 15 for a late spring crop | Harvest from June 15 – June 30 for perfect texture and flavor |
| Zone 6b | Start indoors from February 1 – February 15, ~6–8 weeks before April 13 | Transplant outdoors from April 20 – May 1, after the last frost | Direct sow from April 5 – April 20 for a late spring crop | Harvest from June 5 – June 20 for tender bulbs |
Kohlrabi Planting Windows in New Mexico
- Indoor start: Start kohlrabi indoors from February 1 – March 15, depending on your specific zone.
- Transplant outdoors: Transplant kohlrabi outdoors between April 20 and May 30, based on local frost dates.
- Harvest: Harvest kohlrabi from June 5 – July 15 for the best flavor and size across different zones.
Common Mistakes Growing Kohlrabi in New Mexico
- One common mistake among New Mexico gardeners is planting kohlrabi too late in the season. Gardeners should be aware of their specific zone's frost dates to avoid the risk of frost damaging young plants.
- Another frequent error is neglecting to thin seedlings. Overcrowding can lead to smaller bulbs and reduce overall yield. Proper spacing ensures each plant has enough room to thrive.
- Some gardeners in New Mexico may overwater their kohlrabi, not realizing that soil should be well-drained. Too much moisture can cause bulb rot, especially in heavier clay soils present in some areas.
- One myth is that kohlrabi can be planted at the same time as warm-season crops. In New Mexico, it's crucial to plant kohlrabi early enough to avoid the heat of summer that can stress the plants.
- New Mexico's unique climate can lead to unexpected late spring frosts, and failing to cover young kohlrabi plants can damage your crop. Constant vigilance about weather changes is key to successful gardening.
Frequently Asked Questions
What if I'm in a cold pocket of New Mexico?
If you live in an area that experiences cooler temperatures or late frosts, consider starting your kohlrabi indoors earlier to ensure a successful outdoor transition. You may also want to use frost cloth during unexpected cold snaps.
Can I still plant kohlrabi in May?
Planting kohlrabi in May may not yield optimal results, especially in heavier zones where late spring frosts can occur. It's best to stick to earlier planting dates to achieve better bulb development.
How do I know when kohlrabi is ready to harvest?
Kohlrabi is ready to harvest when the bulbs reach around 3 inches in diameter. If they grow too large, they may become tough and fibrous, diminishing their flavor.
Can kohlrabi survive a light frost?
Yes, kohlrabi is quite frost-tolerant. Light frosts can improve its flavor, but be cautious of hard freezes that could damage the plants. Use protective covers during unexpected late winter temperatures.
What's the best way to prepare kohlrabi?
Kohlrabi can be eaten raw or cooked. For raw preparations, peel it and slice it thinly for salads. For cooked dishes, it can be roasted or sautéed, making it a versatile addition to many meals.
Keep Learning
City guides in New Mexico
Other crops in New Mexico
Typical fall sowing window for Kohlrabi in New Mexico: August 9 – August 30.