Growing Jerusalem Artichoke in Zone 10b
Zone 10b has a year-round growing season. Jerusalem Artichoke can be planted almost any time with proper planning. Last frost: Jan 28. First frost: Dec 22.
Planting Calendar
Season: Jan 28 – Dec 22 (328 days)
When to Plant Jerusalem Artichoke in Zone 10b
Start Seeds Indoors: Nov 19
Start Jerusalem Artichoke seeds indoors around Nov 19 (10 weeks before last frost). Optimal germination temperature: 75°F. Germinates in 10–21 days.
Transplant Outdoors: Jan 14
Transplant Jerusalem Artichoke seedlings outdoors after Jan 14. Wait until soil temperature reaches 55°F. Space plants at 18/sqft. Harden off plants for a week before moving outside.
Harvest: May 14
First harvest approximately May 14 (~120 days from transplant). Continue harvesting until first frost (Dec 22). Jerusalem Artichoke can overwinter in mild climates for continued harvest.
Jerusalem Artichoke in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Jerusalem Artichoke in Zone 10b?
Start Jerusalem Artichoke seeds indoors around Nov 19. Transplant outdoors after Jan 14. Expect first harvest around May 14.
What is the last frost date for Zone 10b?
The average last spring frost date for Zone 10b is Jan 28. The first fall frost averages Dec 22, giving a 328-day growing season.
Can I grow Jerusalem Artichoke in Zone 10b?
Yes. Jerusalem Artichoke needs 120 days to harvest. Zone 10b has a 328-day growing season, which is sufficient.
What is the best month to plant Jerusalem Artichoke in Zone 10b?
The best time to start Jerusalem Artichoke in Zone 10b is Nov. Begin seeds indoors around Nov 19, then transplant outdoors after the last frost date of Jan 28.
How long does Jerusalem Artichoke take to harvest?
Jerusalem Artichoke takes approximately 120 days from planting to harvest. In Zone 10b, expect your first harvest around May 14.
Plan Your Jerusalem Artichoke Garden
Track Jerusalem Artichoke from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Jerusalem Artichoke Growing Guide