Fruit and Vegetable Gardening A-Z: Asparagus

Asparagus is delicious to eat and easy to grow, but it requires some patience. Grow asparagus only if you are able to dedicate a continual spot for it because it's a perennial vegetable. Note: Only plant male asparagus.

Hardiness Zones:
4-9 (Find your hardiness zone.)

When to Plant:
Purchase year-old crowns from a nursery or online retailer. Sow asparagus in the early spring when the soil temperature reaches about 50 degrees Fahrenheit. While more expensive, you can often select two- or three-year-old crowns, which will cut down your wait time.

Prepare a plot in a well-drained, open, and sunny area. To plant, dig a trench about 6-8 inches deep and about 4-5 inches wide. Spread out the “arms” of the roots and then back-fill the hole with 2 inches of soil and compost. As the plants grow, add more dirt and compost until the hole is filled. Be sure to leave the beautiful ferny foliage on the plant all summer and fall when it goes dormant. During the first year, cut no shoots but continue to water regularly. At the end of winter cut and remove the stalks. The second year, enrich the soil with compost and only harvest stalks as big as your finger. The third year, enjoy your bounty in its fullness!

Space Needed:
Space plants 12-18 inches apart.

Water regularly and amend the soil with plenty of organic matter that is rich in potassium and phosphorus. Side-dress plants with an organic fertilizer, such as compost tea, in late summer, and top the bed in organic mulch in the fall.

When to Harvest:
Asparagus takes three years to establish before you can harvest it. After it is established, harvest early in the season when the ground temperature is near 50 degrees. You could harvest 7- to 9-inch-long spears every 2 to 4 days! As air temperatures increases, you'll be able to harvest 5- to 7-inch spears once or twice per day before the tips start to fern out and lose quality.

Average Yield:
For a family of four average asparagus lovers, plant 20-30 crowns. Asparagus grows very fast, and in peak season, you will need to harvest it multiple times per day.

Continuous Yield:

Life Cycle:
Perennial, up to 20 years

Difficulty Rating (1-5):

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Member Comments

Great article Report
We have asparagus! Report
Great information! Thank you! Report
I planted asparagus from seed four years ago and we are now enjoying it! Well worth the wait and they have been very little work. I have raised beds and put one row down the middle of them so that it does not take much space. They are easy to cut while the seeds are sprouting next to them and when the other shorter plants come up later they shade the soil around the asparagus and I do not have to weed them all summer. It also looks nice with its fern like top, you could put some in the back or centre of a flower bed, florists use it in flower arrangements. Report
I grew up on a farm and we had asparagus bushes in the garden and I remember having so much of it at meal time. I laugh when I see how expensive it is now in the grocery stores. Report


About The Author

Jenny Sigler
Jenny Sigler
Jenny is a stay-at-home mom to her young children, Augustine and Olive. An avid gardener and baker, she enjoys writing about health and childcare topics to empower people to make healthy choices. See all of Jenny's articles.