How to Grow Arugula, Serrated Leaf Roquette

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Arugula, Serrated Leaf Roquette

Eruca vesicaria subsp. sativa

vegetable

Arugula is a fast-growing, peppery leafy green that belongs to the Brassicaceae family. Also known as roquette or rocket, it produces deeply lobed, serrated leaves with a distinctive sharp, mustard-like flavor. This cool-season crop is perfect for salads, pestos, and cooked dishes, and can be harvested in just 3-4 weeks from planting.

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Example Arugula, Serrated Leaf Roquette timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Arugula, Serrated Leaf Roquette

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Arugula, Serrated Leaf Roquette

    Around May 17

    ≈ 30 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Arugula, Serrated Leaf Roquette dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun to partial shade; 4-6 hours of sunlight daily (partial shade in hot summers extends harvest season)
💧
Water: Consistently moist soil; water deeply 1-2 times weekly. Keep soil evenly moist but not waterlogged. More frequent watering needed in hot weather.
📏
Spacing: 6-12 inches
📅
Days to maturity: 30-50 days from seed to mature leaves; 20-30 days for baby arugula
🌱
Planting depth: 0.25-0.5 inches

Soil

Type: Well-draining, fertile loamy soil rich in organic matter
pH: 6.0-7.0
Amendments:
Compost aged manure peat moss or coconut coir

Growing Zones

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Thrives in zones 2-10; prefers cool weather and can be grown year-round in mild climates

2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Germination & Seedling

1-2 weeks

Seeds sprout within 5-10 days. Seedlings develop their first true leaves with characteristic serrated margins.

Keep soil consistently moist. Thin seedlings to proper spacing once they have 2-3 leaves. Provide bright light if growing indoors.

2

Vegetative Growth

2-3 weeks

Plant develops more serrated leaves and grows in a loose rosette pattern. Leaves become increasingly peppery in flavor.

Maintain consistent moisture and cool temperatures (60-70°F ideal). Fertilize lightly with balanced fertilizer if needed. Mulch to retain moisture.

3

Leaf Development & Early Harvest

1-2 weeks

Leaves reach harvestable size (3-6 inches). Plant is leafy and full without bolting.

Begin harvesting outer leaves from the bottom to encourage continued growth. Water consistently to prevent bolting in warm weather.

4

Full Harvest

2-4 weeks

Plant reaches full maturity with abundant, deeply lobed serrated leaves ready for continuous picking.

Harvest regularly to prevent bolting and extend productive season. In hot weather, harvest in early morning for best flavor.

5

Bolting

Variable

Plant produces flowering stems with yellow flowers if temperatures get too warm or days lengthen significantly.

Arugula becomes more bitter when bolting. Plant new succession crops in spring and late summer to avoid summer bolting. Flowers are edible.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Fennel mustard family plants planted simultaneously (to avoid pest concentration)

Common Pests

  • Row covers on young plants, neem oil spray, diatomaceous earth, companion planting with garlic or chives

  • Bt (Bacillus thuringiensis), row covers, hand-picking, spinosad spray

  • Strong water spray, insecticidal soap, neem oil, beneficial insects like ladybugs

  • and

    Beer traps, hand-picking at night, copper tape barriers, diatomaceous earth

Uses

🍳

Fresh Salads & Pesto

Culinary

Young arugula leaves add a peppery kick to salads, while mature leaves work well in pestos, marinades, and dressings. The leaves contain glucosinolates that give arugula its distinctive sharp flavor. [source]

🍳

Cooked Greens & Pasta

Culinary

Arugula can be sautéed, wilted into soups, or mixed into pasta dishes. Cooking mellows the peppery flavor and maintains the plant's nutritional value. [source]

💊

Nutritional & Anti-inflammatory Properties

Medicinal

Arugula is rich in vitamins K, A, and C, and contains compounds with potential anti-inflammatory and antioxidant properties. Traditional herbalism has used arugula for digestive health. [source]

🍳

Microgreens & Sprouts

Culinary

Arugula is popular as microgreens, providing concentrated peppery flavor and nutrients in just 10-14 days from seed. [source]

🦋

Pollinator Support

Wildlife

When arugula bolts and flowers, the bright yellow flowers attract bees and other pollinators, supporting garden biodiversity. [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 baby leaves at 3-4 weeks, or wait 5-7 weeks for mature leaves. Pick outer leaves first to encourage continued growth from the center. Harvest in the morning for best flavor and crispness. Cut leaves just above the soil line or pinch off individual leaves. Arugula tastes milder when young; mature leaves are more peppery. Can be harvested as microgreens at 10-14 days.

Fun Facts

  • 🌱 Arugula has been cultivated for centuries in the Mediterranean and Middle East, with references dating back to ancient Roman times.
  • 🌱 The peppery flavor in arugula comes from glucosinolates, the same compounds found in other cruciferous vegetables like cabbage and broccoli, which have shown promise in cancer research.
  • 🌱 Arugula flowers are completely edible and have a milder, slightly sweet peppery flavor compared to the leaves—they make an attractive garnish for salads.

Gardening Terms

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