When to Plant Artichoke in Marion County, OR
Globe artichokes are large thistle-like perennials prized for their edible flower buds. They produce striking silvery foliage and can be grown as ornamentals.
Marion County, Oregon is in USDA Zone 8b. The average last spring frost is April 20 and the first fall frost is October 30, giving you a growing season of approximately 193 days.
At an elevation of 422 feet, Marion County receives approximately 50.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Artichoke during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Artichoke root diseases.
Marion County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Artichoke Planting Timeline — Marion County, OR
Artichoke Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 4 | May 4 – May 18 |
| Harvest | September 7 | Sep 7 – Nov 16 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| August | — |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
120–180 days
🧪 Soil pH
Needs 6.5–8 · Your soil: N/A
🗺️ USDA Zone
Zone 8b
📆 Growing Season
193 days in Marion County
Growing Tips for Marion County
Start seeds indoors 8-10 weeks before last frost. Provide consistent moisture and mulch heavily. Harvest buds before scales begin to open for best flavor.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Artichoke in Other Locations
Frequently Asked Questions
When should I plant Artichoke in Marion County, OR?
Marion County is in Zone 8b with an average last frost of April 20. Plan your Artichoke planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marion County, OR?
Marion County, Oregon is in USDA Hardiness Zone 8b. The average last spring frost is April 20 and first fall frost is October 30.
Your Marion County Garden Planner — Free
A 22-page printable planner built for Marion County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.