Growing asparagus: from seed to harvest
Plant crowns in a deep trench in the cool part of the year, once the soil is workable. A long-lived perennial: don't harvest the first year or two while it establishes. Keep weeds down and the soil moist.
Planting dates for asparagus by zone
| Zone | Start seeds indoors | Sow or transplant | Harvest |
|---|---|---|---|
| Zone 3 | Not suited | ||
| Zone 4 | not needed | April 26 | April 25 |
| Zone 5 | not needed | April 18 | April 14 |
| Zone 6 | not needed | April 10 | April 12 |
| Zone 7 | not needed | March 25 | March 23 |
| Zone 8 | not needed | February 26 | February 21 |
| Zone 9 | not needed | January 29 | January 28 |
| Zone 10 | not needed | February 28 | February 25 |
| Zone 11 | not needed | March 1 | February 28 |
Each date is the start of the best window from the same climate engine the Dibble app uses, run at typical places in each zone. Dibble tunes them to your garden's own location and lets you adjust frost dates for your own yard.
Companion plants
Good neighbors for Asparagus:
Better kept apart:
Related crops
Tomato
When to plantPepper
When to plantPotato
When to plantOnion
When to plantGarlic
When to plantLettuce
When to plant
Questions
When should I plant asparagus?
It depends on your zone. Asparagus is a hardy crop, so the timing follows your last spring frost. Look up your zone in the table below for exact start, sow, and harvest dates, or open Dibble and set where your garden is to get your own calendar.
How long does it take to grow asparagus?
About 365 days from transplant to the first harvest, with a picking window of roughly 45 days after that.
What grows well with asparagus?
Good companions include Tomato, Basil. Keep it away from Onion, Garlic.
Plant at the right time this season
Dibble builds your calendar in under a minute. Free to start, no account needed.