Growing Broccoli in Zone 4
When to plant and harvest broccoli in Zone 4— based on your zone's frost dates.
Zone 4 sits comfortably within broccoli's best range (Zones 3–10), so it grows well here on a standard schedule.
Broccoli planting calendar for Zone 4
These months are derived from Zone 4's frost dates — last frost around Early – mid May, first frost around Mid September – mid October.
Start indoors
April
Sow outdoors
—
Transplant
April and August
Harvest
—
Broccoli care at a glance
- Sunlight
- Full sun (tolerates light shade)
- Water
- 1–1.5 inches per week, consistent
- Spacing
- 18 in apart
- Days to maturity
- 60–85 days from transplant
- Best zones
- 3–10 (cool seasons)
Growing broccoli in Zone 4: FAQs
Can you grow broccoli in Zone 4?＋
Zone 4 sits comfortably within broccoli's best range (Zones 3–10), so it grows well here on a standard schedule.
When should I plant broccoli in Zone 4?＋
In Zone 4, start seeds indoors around April. Zone 4's last spring frost is typically Early – mid May and its first fall frost around Mid September – mid October, which sets the planting window.
When to harvest broccoli in Zone 4?＋
Harvest timing depends on your planting date and variety — broccoli typically matures in 60–85 days from transplant. See the full guide for harvest cues.
Full Broccoli guide →
Complete care, problems, companions, and harvest tips.
Zone 4 overview →
Frost dates, climate, and everything to grow here.
June in Zone 4 →
What to sow, transplant, and harvest this month.