How to Grow Spicy Greens
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Spicy Greens
Eruca vesicaria subsp. sativa
vegetableSpicy greens, commonly known as arugula or rocket, are fast-growing leafy vegetables with a distinctive peppery, mustard-like flavor. These tender greens are popular in salads and Mediterranean cuisine, thriving in cool seasons and reaching harvest maturity in just 3-4 weeks. They are easy to grow, nutrient-dense, and perfect for both beginner gardeners and culinary enthusiasts.
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Example Spicy Greens timeline · Pittsburgh, PA (Zone 6b)
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Plant Spicy Greens
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Spicy Greens
Around May 17≈ 30 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-9; grows best in cool seasons (spring and fall in most regions)
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Germination
7-10 daysSeeds sprout and first true leaves emerge; seedlings are tiny and delicate
Keep soil moist but not soggy. Maintain soil temperature between 50-70°F for best germination (7-10 days). Provide bright, indirect light once sprouted.
Seedling
10-14 daysTrue leaves develop; seedlings have 2-3 sets of leaves and are still tender
Thin seedlings to 6 inches apart to reduce crowding. Ensure consistent moisture. Begin light misting to strengthen stems. Avoid overwatering to prevent damping off disease.
Vegetative Growth
15-25 daysLeaves expand rapidly; plant develops multiple leaf rosettes with characteristic deeply lobed or serrated foliage
Maintain consistent moisture and cool temperatures (below 70°F is ideal). Begin light fertilization if soil is not rich in organic matter. Monitor for pests like flea beetles. Harvest outer leaves if desired.
Bolting
Variable; accelerates in heatPlant sends up a central flowering stalk with yellow flowers; leaves become more bitter and less tender
Bolting signals end of harvestable period for tender greens. Occurs faster in hot weather or when plants are stressed. Can continue harvesting leaves before flowers open if preferred. Plant succession crops for continuous harvest.
Flowering & Seed Set
20-30 daysYellow flowers bloom and develop into long, thin seed pods (siliques); original leaves toughen significantly
Stop harvesting for salads. If saving seeds, allow plants to mature fully. Flowers are edible and mildly peppery. Once flowering, plants are past peak quality for typical use.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use row covers on young plants; spray neem oil or insecticidal soap; plant radishes nearby as trap crops; maintain plant vigor through proper watering
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Use Bacillus thuringiensis (Bt) spray; employ row covers; remove any visible caterpillars; encourage beneficial insects like parasitic wasps
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Strong water spray to dislodge; neem oil or insecticidal soap spray; encourage ladybugs and lacewings; reflective mulches
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and
Handpick in early morning; beer traps; copper barriers; encourage ground beetles; remove hiding spots like dense debris
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Remove affected leaves; use row covers; neem oil spray; ensure good air circulation to reduce humid conditions they prefer
Uses
Peppery Salads & Fresh Cooking
CulinaryArugula's distinctive peppery, slightly mustard-like flavor makes it ideal for salads, pasta dishes, and pesto. The tender young leaves are milder than mature leaves, which develop more intense heat. [source]
Cooked Green Vegetable
CulinaryMature or tougher leaves can be sautéed, wilted in soups, or added to grain dishes. Cooking mellows the peppery flavor while retaining nutritional benefits. [source]
Nutrient-Dense Health Food
MedicinalArugula is rich in vitamins K, C, and A, plus minerals like calcium and potassium. Contains glucosinolates and isothiocyanates, compounds studied for potential anti-cancer and detoxification properties. [source]
Edible Flowers
HouseholdThe delicate yellow flowers are edible with a mild peppery taste, adding color and flavor to salads and garnishes before the plant fully bolts. [source]
Seed Saving & Propagation
CraftArugula is easy to save seeds from; simply allow plants to flower and mature seed pods. Collect dried pods and extract seeds for next season's planting. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest baby greens at 20-30 days for tender, mild flavor by cutting leaves 1 inch above soil line; mature plants ready at 30-45 days. Pinch off outer leaves while leaving center intact for continued growth, or cut entire plant 1 inch above soil for regrowth. Harvest in early morning for best flavor and crispness. Pick before bolting for peak tenderness. Can be harvested repeatedly with proper technique until flowering begins.
Fun Facts
- 🌱 Arugula was historically used as an aphrodisiac in ancient Rome and medieval times, earning it the nickname 'rocket' in some regions due to its reputation for boosting vitality.
- 🌱 A single plant can regrow multiple times if harvested correctly by removing only outer leaves, potentially providing 2-3 harvests before bolting occurs.
- 🌱 Spicy greens grow so quickly that they're often used as a 'quick crop' between slower-growing vegetables, making them ideal for succession planting every 2-3 weeks for continuous harvests.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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