Asparagus Planting Guide — All Zones
Asparagus officinalis
Last updated: Apr 29, 2026Quick Facts
Sunlight
☀️ Full Sun
Water Needs
💧💧 Moderate
Spacing
18 inches apart
Planting Depth
6.0 inch
Min Soil Temp
50°F
Germination
14–21 days
Days to Maturity
730–1095 days
Frost Tolerance
Heavy frost tolerance
Soil pH
6.5–7.5
Difficulty
Moderate
Planting Schedule by Zone
Select your USDA zone below for a detailed guide with tips specific to your region.
| Zone | Start Indoors | Transplant | Direct Sow | Harvest Start | Harvest End |
|---|---|---|---|---|---|
| Zone 3 | Apr 24 | May 22 | May 22 | year 2-3 | ongoing |
| Zone 4 | Apr 19 | May 17 | May 17 | year 2-3 | ongoing |
| Zone 5 | Apr 9 | May 7 | May 7 | year 2-3 | ongoing |
| Zone 6 | Mar 25 | Apr 22 | Apr 22 | year 2-3 | ongoing |
| Zone 7 | Mar 15 | Apr 12 | Apr 12 | year 2-3 | ongoing |
| Zone 8 | Feb 27 | Mar 27 | Mar 27 | year 2-3 | ongoing |
| Zone 9 | Feb 7 | Mar 7 | Mar 7 | year 2-3 | ongoing |
| Zone 10 | Jan 20 | Feb 17 | Feb 17 | year 2-3 | ongoing |
What you'll need — Your Zone
🛒 Asparagus — Seeds & Supplies
- 🌱 Asparagus Seeds
Search for these at your local garden center or nursery.
Companion Planting
Companion planting improves growth, deters pests, and makes better use of garden space.
✓ Good Companions
✗ Avoid Nearby
Garlic Onion
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.