How to Grow Broccoli Raab
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Supplies You'll Need
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Plant Overview
Growing Requirements
Sun
Full Sun (6-8 hours)
Water
Regular (1-2 inches/week)
Spacing
6" apart
Depth
0.5" deep
Height
12-24"
Germination
4-7 days
Ready to Grow Broccoli Raab?
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Avoid Planting Near
Full Companion Planting Guide for Broccoli Raab
See which plants help Broccoli Raab thrive, which to keep away, and raised bed layout tips →
Seed Saving Guide
ModerateWhen to Harvest Seed
Allow plants to flower fully and seed pods to turn tan and dry.
Processing
Thresh dried stalks, winnow to separate seeds from pod fragments.
Seed Viability
Up to 4 years when stored cool, dark, and dry.
Pro Tip
Brassica rapa — crosses with turnip, bok choy, and napa cabbage. Isolate by 300 feet.
Seed Storage Supplies
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Raised Bed Planting Guides
A 4×8 bed fits 4 per sq ft of Broccoli Raab. See plant counts, spacing grids, and companion pairings for every bed size →
Broccoli Raab Planting Calendar by Zone
Broccoli Raab Planting Calendar by State
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Frequently Asked Questions
When should I plant Broccoli Raab? +
Sow Broccoli Raab seeds directly in the garden 6 weeks before your last frost date. Use the search on this page to find exact dates for your location.
How long does Broccoli Raab take to grow? +
Broccoli Raab typically matures in about 60 days from planting. Exact timing varies by variety, soil conditions, and local climate.
Should I start Broccoli Raab indoors or direct sow? +
Broccoli Raab does best when direct sown outdoors. Plant seeds directly in the garden at the appropriate time based on your local frost dates.
How much sun does Broccoli Raab need? +
Broccoli Raab requires full sun (6-8 hours) to thrive.
How far apart should I plant Broccoli Raab? +
Space Broccoli Raab plants 6 inches apart to allow adequate airflow and root development.
How much water does Broccoli Raab need? +
Broccoli Raab has regular (1-2 inches/week) water needs. Consistent moisture is important especially during germination and early growth.
Can you save seeds from Broccoli Raab? +
Yes — seed saving difficulty for Broccoli Raab is rated moderate. Allow plants to flower fully and seed pods to turn tan and dry. Thresh dried stalks, winnow to separate seeds from pod fragments.
How long do Broccoli Raab seeds last in storage? +
Properly dried and stored Broccoli Raab seeds remain viable for up to 4 years. Store in a cool, dark, dry location in an airtight container with a silica gel packet for best results.
Are Broccoli Raab seeds open-pollinated? +
Yes — Broccoli Raab is open-pollinated, meaning seeds saved from your harvest will grow plants true to the parent variety. This makes it an excellent candidate for building a self-sustaining garden.
About Broccoli Raab
Rapini — Italian bitter green with small broccoli-like florets. Fast-growing cool-season crop. Harvest before flowers fully open for best flavor.
Expect your Broccoli Raab to be ready for harvest in approximately 60 days from planting.
Use the search above or browse by zone or state to find the perfect planting dates for your location.