← Plant Guides

How to Grow Spartan Asparagus

Wikimedia Commons

Spartan Asparagus

Asparagus officinalis 'Spartan'

vegetable

Spartan is a hybrid asparagus cultivar bred for vigor, productivity, and cold hardiness. It produces thick, straight green spears with tight tips and excellent flavor. This male-dominant hybrid is known for consistent yields and resistance to rust and other diseases.

When should you plant Spartan Asparagus in your zone?

Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.

Get my Spartan Asparagus timeline →

Example Spartan Asparagus timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Spartan Asparagus

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Spartan Asparagus

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Spartan Asparagus dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun, 8+ hours daily
💧
Water: Keep soil consistently moist during growing season (1-1.5 inches per week); reduce watering after harvest; drought-tolerant once established
📏
Spacing: 12-18 inches apart in rows 4-5 feet apart inches
📅
Days to maturity: 2-3 years for first significant harvest (perennial crop)
🌱
Planting depth: 6-8 inches deep for crowns; 1-1.5 inches for seed

Soil

Type: Well-draining sandy loam to loamy soil
pH: 6.5-7.5
Amendments:
compost aged manure peat moss perlite for drainage

Growing Zones

Find your zone →

Thrives in zones 3-8, with excellent cold hardiness making it ideal for northern regions

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a

Sign up free to see if Spartan Asparagus grows in your zone — and get a personalized planting timeline.

Get my Spartan Asparagus timeline →

Growth Stages

1

Establishment Year 1

Full growing season (spring to fall)

Weak, fern-like growth emerges; plant focuses on crown and root development rather than spear production

Do not harvest spears; allow fronds to grow fully; keep weed-free; apply 2-3 inches of mulch; water regularly

2

Establishment Year 2

Full growing season

Stronger fern growth with more shoots; light harvest possible but not recommended for maximum productivity

Can harvest lightly for 2-3 weeks if plant is vigorous; continue weeding and mulching; apply balanced fertilizer in spring

3

Spear Production Year 3+

6-8 weeks in spring

Thick green spears emerge in early spring with tight buds; plant produces prolifically during 6-8 week harvest window

Harvest spears when 6-8 inches tall by cutting or snapping at soil level; fertilize monthly during harvest; maintain moisture

4

Post-Harvest Fern Growth

Summer through fall

After harvest window closes, fern fronds grow tall (3-4 feet) and store energy in crowns for next season

Allow fronds to grow undisturbed until frost; provide support if needed; do not cut fronds until completely brown; apply mulch in fall

5

Winter Dormancy

Late fall through early spring

Plant dies back completely; crowns remain dormant underground; no visible growth above soil

Cut dead fronds at soil level; add 4-6 inches of mulch or compost; no watering needed; clean up debris to prevent disease

Companion Planting

Plan your garden →

Plant with:

basil parsley lettuce spinach tomato marigold nasturtium garlic chives

Avoid planting near:

onion fennel potato carrot

Common Pests

  • Hand-pick beetles and egg-laden fronds; remove debris where they overwinter; spray neem oil or insecticidal soap; encourage beneficial insects

  • Same as asparagus beetle; remove damaged spears; maintain garden sanitation

  • Spartan has good rust resistance; ensure good air circulation; remove infected fronds; avoid overhead watering

  • Hand-pick in early morning; use pheromone traps away from bed; apply neem oil; encourage parasitic wasps

  • and

    Remove mulch 6 inches from crowns; use beer traps; hand-pick; apply diatomaceous earth; reduce overhead watering

Uses

🍳

Fresh cooking and grilling

Culinary

Spartan produces tender, thick spears excellent for steaming, roasting, grilling, or stir-frying. The tight buds indicate peak freshness and superior flavor. [source]

🍳

Canning and preservation

Culinary

The sturdy spears hold texture well through canning and blanching-freezing processes, making Spartan ideal for preserving bumper harvests. [source]

💊

Nutritional and health benefits

Medicinal

Asparagus is rich in folate, vitamins A, C, and K, plus glutathione, an antioxidant. Contains inulin, a prebiotic that supports digestive health. [source]

🏠

Garden bed succession planning

Household

Asparagus is a perennial that occupies bed space for 10-15 years, making it excellent for permanent garden structure and border definition. [source]

🦋

Pollinator and beneficial insect habitat

Wildlife

Mature fern growth and flowers attract bees, butterflies, and parasitic wasps that control garden pests naturally. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Begin harvesting in year 3 when spears reach 6-8 inches tall with tight buds. Snap or cut spears at soil level. Harvest for 6-8 weeks in spring, then allow remaining spears to fern out for energy storage. Never harvest more than 50% of emerging spears to maintain plant vigor. Peak production occurs in years 4-8. A mature bed can produce 1-2 pounds per 10 feet of row seasonally.

Fun Facts

  • 🌱 Spartan is a male-dominant hybrid, meaning most plants produce only male flowers and no berries; female plants waste energy producing inedible red berries instead of spears
  • 🌱 A single mature asparagus plant can live 15-20 years and produce harvestable spears, making it one of the longest-producing perennial vegetables
  • 🌱 Asparagus spears are technically fern fronds that are harvested before they unfurl; if left unharvested, they develop feathery ferns that can reach 4-5 feet tall

Gardening Terms

New to gardening? Learn about terms used in this guide:

Compost Crown Cultivar Full Sun Hybrid Mulch
Shop Spartan Asparagus plants and related plants at Plant Addicts →

Join 30,000 gardeners planning their gardens with LizPlants.

Get your personalized Spartan Asparagus planting timeline

Tell us your zip code and we'll calculate exactly when to start Spartan Asparagus seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.

Get my Spartan Asparagus timeline →