🫛
Asparagus
vegetable
Perennial — plant once, harvest for 20+ years. Do NOT harvest the first 2 years; let the fern fronds build up the root crown. Begin light harvest in year 2 and full harvest from year 3 onwards. Skip cutting any spears that are pencil-thin.
At a glance
- USDA Zones
- 3–9
- Sun
- Full sun (6+ hrs)
- Water
- Medium — water when top inch of soil is dry
- Soil
- loam, sandy
- pH
- neutral
- Spacing
- 18 in. between plants
- SFG footprint
- 2×2 ft cell footprint
- Days to maturity
- ~730 days
Planting & harvest windows
Northern Hemisphere timing. Adjust ±4–6 weeks based on your last/first frost dates.
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant | ||||||||||||
| Harvest |
Plant Harvest
Good companions
- 🍅
- 🌱
- 🌿
Keep apart from
- 🧅
- 🧄
- 🥔
Recommended varieties
- Jersey Knightstart
All-male hybrid — high-yielding and disease-resistant.
- Purple Passionstart
Sweet, tender purple spears that turn green when cooked.
Add Asparagus to your raised bed — the planner handles spacing and companion warnings automatically.
Open the planner →