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Asparagus

Asparagus officinalis
Also known as: Sparrow Grass, Garden Asparagus

Asparagus is a vegetable in the Asparagaceae family. It grows best in full sun to part shade with medium to wet moisture, and is listed for USDA zones 3-8. Plants reach harvest about 620–1259 days after planting and sit about 12 inches apart.

Varieties

8 from Seeds Now & True Leaf Market · sorted by days to maturity
  • Jersey Knight620–840 days

    Organic/F1 Hybrid The top name in Jersey male asparagus. Phenomenal yields, excellent quality and disease resistant. Dark green spears with purple bracts. Shoot tips hold tighter than other varieties allowing for an extended harvest period. ⚠️ These crowns are 2-year-old bare roots that are all male, which means possibly higher (3-4 times) yields. CROWN PLANTING TIPS Botanical name: Asparagus officinalis Depth to plant crowns: 6"-8" deep Spacing between plants: 14"-18" apart Spacing between rows: 4'-5' apart Preferred temps: When daytime temps exceed 75F–85F Soil needs: 6.0-7.0 pH Sun needs: Full sun, partial shade Frost hardy: No Planting season: Spring, fall # of plants per sq. ft.: Appx. 1 plant per sq. ft. Days to maturity: 730 days ADDITIONAL PLANT INFORMATION Health Benefits of Asparagus Asparagus contains high levels of beta carotene and other vitamins and minerals, and is a great diuretic. Need more fiber? Chew on some asparagus. And if you're looking for help controlling diabetes or preventing kidney stones, plant and eat more asparagus. Ways to Eat Asparagus Asparagus is delicious raw or marinated in a little olive oil, lemon juice, and salt. You can also boil, steam, grill, roast, or sauté the spears. Add some asparagus to your other favorite foods such as soups, risottos, lasagnas, and quiches. To preserve your harvest, can up a few jars of pickled asparagus. • Shop all Asparagus (seeds) • Shop all Asparagus (roots) Shop Good Companion Plants for Asparagus 📚 Grow Guide: Asparagus Roots

    View on Seeds Now
  • Millennium620–840 days

    This item begins shipping Feb - Apr. Asparagus plants are perennials that can easily produce for 20+ years, so give this vegetable a permanent and sunny spot in your garden. To ensure many years of future production, wait until the second year to cut and consume the spears. ⚠️ These crowns are 2-year-old bare roots that are all male, which means possibly higher (3-4 times) yields. The Millennium Asparagus is an F1 hybrid variety developed in Canada. Cold hardy, but protect from frost Easy to care for, once established Beautiful fern-like foliage lingers after harvest Best adapted to heavier soils CROWN PLANTING TIPS Botanical name: Asparagus officinalis Depth to plant crowns: 6"-8" deep Spacing between plants: 14"-18" apart Spacing between rows: 4'-5' apart Preferred temps: When daytime temps exceed 75F–85F Soil needs: 6.0-7.0 pH Sun needs: Full sun, partial shade Frost hardy: No Planting season: Spring, fall # of plants per sq. ft.: Appx. 1 plant per sq. ft. Days to maturity: 730 days ADDITIONAL PLANT INFORMATION Health Benefits of Asparagus Asparagus contains high levels of beta carotene and other vitamins and minerals, and is a great diuretic. Need more fiber? Chew on some asparagus. And if you're looking for help controlling diabetes or preventing kidney stones, plant and eat more asparagus. Ways to Eat Asparagus Asparagus is delicious raw or marinated in a little olive oil, lemon juice, and salt. You can also boil, steam, grill, roast, or sauté the spears. Add some asparagus to your other favorite foods such as soups, risottos, lasagnas, and quiches. To preserve your harvest, can up a few jars of pickled asparagus. • Shop all Asparagus (seeds) • Shop all Asparagus (roots) Shop Good Companion Plants for Asparagus 📚 Grow Guide: Asparagus Roots

    View on Seeds Now
  • Purple Passion620–840 days

    This item begins shipping Feb - Apr. Some say Purple Passion Asparagus is the best variety. This variety produces beautiful dark purple spears that are sweeter than standard green varieties. Asparagus plants are perennials that can easily produce for 20+ years, so give this vegetable a permanent and sunny spot in your garden. To ensure many years of future production, wait until the second year to cut and consume the spears. ⚠️ These crowns are 2-year-old bare roots that are all male, which means possibly higher (3-4 times) yields. Vigorous grower Sweet and tender Heat tolerant Cold hardy, but protect from frost CROWN PLANTING TIPS Botanical name: Asparagus officinalis Depth to plant crowns: 6"-8" deep Spacing between plants: 14"-18" apart Spacing between rows: 4'-5' apart Preferred temps: When daytime temps exceed 75F–85F Soil needs: 6.0-7.0 pH Sun needs: Full sun, partial shade Frost hardy: No Planting season: Spring, fall # of plants per sq. ft.: Appx. 1 plant per sq. ft. Days to maturity: 730 days ADDITIONAL PLANT INFORMATION Health Benefits of Asparagus Asparagus contains high levels of beta carotene and other vitamins and minerals, and is a great diuretic. Need more fiber? Chew on some asparagus. And if you're looking for help controlling diabetes or preventing kidney stones, plant and eat more asparagus. Ways to Eat Asparagus Asparagus is delicious raw or marinated in a little olive oil, lemon juice, and salt. You can also boil, steam, grill, roast, or sauté the spears. Add some asparagus to your other favorite foods such as soups, risottos, lasagnas, and quiches. To preserve your harvest, can up a few jars of pickled asparagus. • Shop all Asparagus (seeds) • Shop all Asparagus (roots) Shop Good Companion Plants for Asparagus 📚 Grow Guide: Asparagus Roots

    View on Seeds Now
  • UC 157 F1620–840 days

    Vegetable

    Second season harvest. Asparagus officinalis. UC 157 F1 Asparagus Seeds. Non-GMO, perennial, F1 hybrid. This crop is suitable for garden plots, raised beds, and fields. Classic UC Riverside hybrid known for early, uniform spears and heat tolerance; sow indoors or direct, establish a strong bed, and begin cutting lightly in year two for heavy yields thereafter. ~950 seeds/oz.

    View on True Leaf Market
  • Mary Washington730–1095 days

    Can tolerate hot temperatures; Grows well in full sun; Grows well with raised beds

    The Mary Washington Asparagus is a popular old heirloom variety that produces vigorous, uniform spears with a sweet, nutty flavor. Asparagus plants are perennials that can easily produce for 20+ years, so give this vegetable a permanent and sunny spot in your garden. To ensure many years of future production, wait until the second year to cut and consume the spears. Early producer Cold hardy, but protect from frost Easy to care for, once established Beautiful fern-like foliage lingers after harvest Asparagus can be considered a power food among veggies. It is packed with vitamins and minerals, delivering a more complete balance than any other. Asparagus is a good source of vitamin A, B6 and C, as well as iron, potassium, riboflavin, niacin, and thiamine. It is high in fiber and low in carbohydrates, contains no fat, no cholesterol and has only 20 calories per 1/2 cup serving. An established bed of 25 asparagus plants will produce about 10 pounds of asparagus per year. • Shop all Asparagus (seeds) • Shop all Asparagus (roots) Shop Good Companion Plants for Asparagus 📚 Grow Guide: Asparagus

    View on Seeds Now
  • Sweet Purple730–1095 days

    Heirloom; Vegetable

    View on True Leaf Market
  • UC 72730–1095 days

    Heirloom; Vegetable

    Resistance: IR: Fusarium Wilt

    2-3 years, perennial.Non-GMO, open pollinated. The UC 72 Asparagus variety was created to be tolerant to drought and Fusarium Wilt. Plants produce large yields after being in the ground for 2-3 years, and will continue to produce for up to 15 more years. Spears are dark green with compact heads, and tend to be larger than Mary Washington Asparagus. This is a great choice for market growers and home gardens alike. This variety is more heat and drought tolerant than many other varieties.

    View on True Leaf Market
  • UC 157 F2931–1259 days

    Vegetable

    3 years to first harvest, annual harvest. Non-GMO, Hybrid. Perennial. This variety was developed at the University of California, Riverside in 1978 by Frank Southers and Frank Takatori. This hybrid is still planted the most widespread out of any variety of fresh market Asparagus. Plants produce heavy yields of uniform dark green Asparagus spears that grow 36-48". It is an excellent choice for home gardens, market growers, and open field production.

    View on True Leaf Market
Family
Asparagaceae
Category
Vegetable
Form
Stalk
Lifecycle
perennial
Zone
3-8
Height
3–5 ft
Spread
1–1.5 ft
Sun
Full sun to part shade

Plant spacing

1 plant per square footSquare-foot planting diagram: one asparagus fills a 1-foot square, spaced 12 inches from its neighbors.
1 plant per square foot

In a square-foot bed, space asparagus about 12 in apart — that fits 1 plant in each 1-foot square (1×1). Wider rows or containers space the same.

Water
Medium to wet

Plan your asparagus planting

Add asparagus to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.

Start your free plan →

At a glance

Days to harvest
620–1259 days
From transplant or sow to first harvest
Harvest style
Harvest once
One main harvest
Frost tolerance
Hardy · to ~5°F
Lowest temperature the foliage usually survives
Germination
~70%
Typical minimum germination rate

Storing & preserving

Most keep best refrigerated; storage crops prefer a cool, dry spot.

  • Freeze: Blanch briefly, cool, then freeze — keeps color and texture.
  • Can: Pressure-can low-acid vegetables; water-bath only pickled/acidified ones.

General home-preservation guidance — for tested processing times and safety, follow the National Center for Home Food Preservation.

Growing timeline

When to plant and harvest asparagusPlanting timeline for asparagus, relative to last frost: grow from 2 weeks before last frost to 87 weeks after last frost; harvest from 87 weeks after last frost to 178 weeks after last frost.GrowHarvestLast frostDirect sow
Direct-sow asparagus 2 weeks before last frost; first harvest 87 weeks after last frost.
Outdoor planting
-14 to 14 days vs frost
Propagation
Crown
Schedule anchor
Last Frost

Companion planting — with cited sources

From US/Canada cooperative-extension publications and peer-reviewed studies. Evidence-tier dots show how strongly each recommendation is backed: ●●● peer-reviewed mechanism · ●● extension consensus · traditional knowledge with a plausible mechanism.

Pairs well with (3)

  • Common TomatoEvidence tier B: Extension consensus across multiple US/Canada land-grant institutionspest-deter

    A frequently recommended reciprocal pairing: tomato foliage (solanine) is widely cited by extension as repelling asparagus beetle, while asparagus is reported to suppress root-knot nematodes affecting tomato.

    Source: S1, S7

  • BasilEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpest-deter, pollinator-attract

    Basil is a traditional asparagus companion reported to deter asparagus beetle and to attract pollinators.

    Source: S7

  • Common ParsleyEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationpredator-attract

    Parsley is traditionally interplanted with asparagus; its umbel flowers attract hoverflies and predatory wasps.

    Source: S7

Avoid planting near (1)

  • GarlicEvidence tier C: Traditional practice with plausible mechanism but limited empirical replicationnutrient-competition

    Garlic and other alliums are traditionally separated from asparagus due to reported growth suppression of the crowns.

    Source: S7

Sources cited

S1
Cornell University Cooperative Extension — vegetable production guides
S7
University of Minnesota Extension

Care & troubleshooting— extension-sourced, with citations

When to feed, prune & water

Hold off harvesting young asparagus and stop on time

Harvest

Unusual this time of year.

Let asparagus ferns grow, then cut back when brown

Pruning

Unusual this time of year.

Spring feeding and weed control for asparagus

Feeding

Unusual this time of year.

Something looks wrong?

Describe what you see on your asparagusand we'll rank the likely causes — most likely first, least-invasive fix first.

Asparagus beetles (common and spotted)

Pestmoderate

Symptoms: small bluish-black beetles with cream spots; reddish-orange beetles with black spots; chewed scarred spears; browning bent spear tips; dark eggs standing on end on spears; gray larvae on ferns

Asparagus rust and purple spot

Diseasemoderate

Symptoms: orange to rust-brown pustules on ferns; yellowing then browning ferns; small purple to tan oval lesions on spears and ferns; premature fern dieback