How to Grow Italian Raab
Wikimedia Commons
Italian Raab
Brassica rapa subsp. turnips
vegetableItalian raab, also known as broccoli rabe or rapini, is a leafy green cruciferous vegetable with small broccoli-like florets and tender stems. It features a slightly bitter, peppery flavor and is a staple in Italian cuisine. This cool-season crop grows quickly and produces abundant edible shoots and leaves.
Looking for a specific variety?
When should you plant Italian Raab 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.
Example Italian Raab timeline · Pittsburgh, PA (Zone 6b)
-
Plant Italian Raab
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Italian Raab
Around Jun 6≈ 50 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Italian Raab dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-9; grows year-round in milder climates (zones 9-10)
Sign up free to see if Italian Raab grows in your zone — and get a personalized planting timeline.
Get my Italian Raab timeline →Growth Stages
Seedling
10-14 daysCotyledons emerge with true leaves following within 5-7 days; seedlings develop 2-3 true leaves
Keep soil moist; thin seedlings to proper spacing once they have 2 true leaves; provide bright light to prevent legginess
Vegetative
20-30 daysRapid leaf growth with dark green, lobed leaves; plant becomes bushy and establishes root system
Water consistently; apply balanced fertilizer every 2-3 weeks; mulch to retain moisture and keep soil cool
Budding
10-15 daysSmall broccoli-like flower buds form at stem tips and leaf axils; central head becomes prominent
Increase watering if weather turns warm; maintain even soil moisture to prevent bolting; light feeding with nitrogen
Harvest Ready
5-10 daysCentral head is tight with unopened florets, 3-4 inches long; side shoots developing below main head
Begin harvesting central head when florets are still compact; cooler temperatures extend harvest window
Secondary Shoots
20-30 daysAfter main head removal, multiple smaller side shoots emerge from leaf axils for continuous harvesting
Continue watering and light feeding; harvest shoots regularly to encourage more production; plants remain productive for 3-4 weeks
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Row covers on seedlings; neem oil spray; diatomaceous earth; resistant varieties; trap crops like nasturtium
-
Strong water spray to dislodge; insecticidal soap; neem oil; attract beneficial insects like ladybugs and parasitic wasps
-
Row covers; Bacillus thuringiensis (Bt); hand-picking; pheromone traps; neem oil
-
Row covers; Bt spray; spinosad; encourage parasitic wasps; crop rotation
-
Crop rotation (3-year minimum); improve drainage; raise soil pH to 7.0+; avoid planting in infected soil; resistant varieties if available
Uses
Italian Cooking Staple
CulinaryItalian raab is a cornerstone of Italian cuisine, particularly in Southern Italian dishes. It can be sautéed with garlic and olive oil, blanched and dressed with lemon, roasted, or added to pasta, soups, and grain bowls. [source]
Nutritional Powerhouse
CulinaryRich in vitamins A, C, and K, calcium, iron, and antioxidants. Contains glucosinolates, sulfur compounds with potential anti-cancer properties common in cruciferous vegetables. [source]
Traditional Herbal Use
MedicinalIn traditional medicine, Italian raab has been used to support digestive health and boost immunity. The bitter compounds may stimulate digestive secretions and liver function. [source]
Quick Growing Green
HouseholdOne of the fastest-producing cool-season crops, making it ideal for succession planting and extending harvest seasons in spring and fall gardens. Perfect for gardeners seeking quick returns. [source]
Pollinator and Beneficial Insect Support
WildlifeIf allowed to flower, Italian raab provides early-season nectar and pollen for pollinators and beneficial insects. Late bolting plants can support wildlife in spring and fall gardens. [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 central head when florets are tight and compact, typically 3-4 inches long, before flowers open. Cut the main head 1-2 inches above the top leaves with a sharp knife. Leave the plant in the ground to produce abundant side shoots, which can be harvested every 3-5 days for 3-4 weeks. Harvest in cool morning hours for best flavor and crispness. Tender stems should snap cleanly when bent.
Fun Facts
- 🌱 Italian raab can be harvested multiple times from a single planting—after removing the central head, the plant produces proliferating side shoots for several weeks, earning its reputation for continuous harvest.
- 🌱 The name 'rapini' comes from the Italian word 'rapa' (turnip), as it's a relative of turnips despite its broccoli-like appearance; it's also called broccoli rabe, though it's botanically distinct from true broccoli.
- 🌱 Italian raab grows so quickly that it can be direct-seeded for spring and fall crops in many regions, often ready to harvest in just 50-70 days—one of the fastest returns from seed in the vegetable garden.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Italian Raab planting timeline
Tell us your zip code and we'll calculate exactly when to start Italian Raab 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 Italian Raab timeline →