When to Plant Asparagus in Nevada
Published: April 24, 2026
Nevada gardeners in Zone 9a enjoy an extended 46-week growing season for asparagus. Cool-season crops like asparagus do best in fall, winter, and early spring in Nevada — the hot summers bolt these plants before they can be harvested. This guide gives exact dates for Nevada based on your local frost calendar.
Asparagus Planting Dates for Nevada
| Start seeds indoors | Year-round |
| Last frost (average) | January 30 |
| Direct sow outdoors | January 2–12 |
| Expect first harvest | January 2 |
| First fall frost (average) | December 15 |
Dates above assume Zone 9a, the most common zone in Nevada. Gardeners in cooler Reno (Zone 6a) plant 1–2 weeks later; warmer Las Vegas (Zone 9a) can plant 1–2 weeks earlier.
⚠ Plant asparagus crowns in early spring as soon as soil can be worked. Plant once, harvest for 20+ years. Do not harvest first year — allow ferns to establish. Light harvest year 2, full harvest from year 3 onward.
Growing Asparagus in Nevada's Climate
Nevada's warm Zone 9a climate makes asparagus a fall, winter, and early spring crop rather than a summer one. The cool-season window runs roughly October through April in Nevada — plant outside this window and the asparagus will bolt (send up a flower stalk and turn bitter) before it produces a harvestable crop.
Succession planting stretches the asparagus harvest window. Sow small amounts every two weeks from October through February — you will have staggered harvests rather than a single wave to process all at once. Bolt-resistant varieties extend the usable window an extra three to four weeks into warming weather.
Common asparagus pests to watch for in Nevada include Asparagus Beetle and Fusarium Wilt. The first line of defense is companion planting: Tomato and Basil planted nearby discourage several of these pests by confusing host-plant identification or repelling adults before they can lay eggs. Weekly garden walks in the early morning catch problems when they're still manageable.
Asparagus Garden Calendar for Nevada
| Month | Task | Notes |
|---|---|---|
| January | Direct sow seeds | Sow seeds 1 inch deep, 18 inches apart |
| February | — | Off-season |
| March | — | Off-season |
| April | — | Off-season |
| May ← | Watch for bolting | Harvest promptly; spring heat arrives quickly |
| June | — | Off-season |
| July | — | Off-season |
| August | — | Off-season |
| September | — | Off-season |
| October | — | Off-season |
| November | — | Off-season |
| December | First frost approaches | Harvest remaining asparagus; cover plants on frost nights |
Asparagus Growing Tips for Nevada Gardeners
- •Plant one-year-old crowns in trenches 6–8 inches deep, spread roots out, and backfill gradually as ferns grow.
- •Never harvest any spears the first year; allow ferns to develop and feed the crown for year-2 production.
- •Nevada's cool-season asparagus plants best in October, November, and December for winter and early spring harvest. Spring plantings bolt before producing a harvestable crop.
- •Cut back dead ferns in late fall and mulch heavily with 4–6 inches of compost or straw before winter.
Companion Planting for Asparagus in Nevada
In Nevada's warm climate, planting asparagus with Tomato and Basil helps deter pests and improve soil. Avoid planting near Onion and Garlic, which inhibit asparagus growth through root chemistry or shared pest pressure. See the full asparagus companion planting guide for the complete list.
Asparagus Planting Dates by City in Nevada
Top cities in Nevada — select for city-level frost dates and planting calendars.
Frequently Asked Questions
When should I plant asparagus in Nevada?
In Nevada (Zone 9a), start asparagus seeds indoors around Year-round and transplant outdoors around null — 4 weeks before the state's average last frost of January 30.
What is the last frost date in Nevada?
Nevada's average last frost date is January 30 in the state's most common Zone 9a. Frost dates vary by city — higher elevations and northern counties run 1 to 3 weeks later than the state average. See the city list below for city-level frost dates.
Can I grow asparagus year-round in Nevada?
asparagus is a cool-season crop in Nevada, with spring and fall windows. Summer heat bolts the plants before they can produce a harvestable crop. Succession planting every 2–3 weeks stretches the harvest window.
What asparagus varieties grow best in Nevada?
For Nevada's Zone 9a, consult a local nursery or extension office for asparagus variety recommendations.
When do I start asparagus seeds indoors in Nevada?
Asparagus does not need indoor starting in Nevada — direct sow around January 2–12 once soil reaches 50°F. Indoor starting is not recommended for this crop because asparagus transplants poorly.