When to plant Turnip in Butte County, ID
Butte County gardeners should plant Turnip between May 18 and June 8 in spring. With Butte County's Zone 5a climate (last frost June 1), Turnip needs 40–60 days to mature — plant by July 16 for a full harvest. A second sowing from July 6 to July 20 extends the harvest into fall.
When to Plant Turnip in Butte County, ID
Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.
Butte County, Idaho is in USDA Zone 5a. The average last spring frost is June 1 and the first fall frost is September 14, giving you a growing season of approximately 105 days.
At an elevation of 7,254 feet, Butte County receives approximately 24 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Turnip to ensure they mature before fall.
Butte County Soil Profile
Soil Type
Loam
Soil pH
6.8-8.4
Drainage
Well Drained
Monthly Watering Guide for Turnip
Turnip needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Turnip Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 1.4" | 0" | ❄️ Dormant |
| Mar | — | 2.1" | 0" | ❄️ Dormant |
| Apr | — | 2.4" | 0" | ❄️ Dormant |
| May | — | 3" | 0" | ❄️ Dormant |
| Jun | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Jul | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Aug | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Sep | 4.3" | 1.7" | 2.6" | 🚿 Regular watering |
| Oct | — | 2.2" | 0" | ❄️ Dormant |
| Nov | — | 1.6" | 0" | ❄️ Dormant |
| Dec | — | 1.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Butte County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Turnip Planting Timeline — Butte County, ID
Turnip Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | May 18 | May 18 – Jun 8 |
| Harvest | June 29 | Jun 29 – Aug 3 |
| Fall Sowing | July 6 | Jul 6 – Jul 20 |
Plant 0.5" deep · 4" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Direct Sow |
| June | Direct Sow Harvest |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
105 days in Butte County
Growing Tips for Butte County
Direct sow in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Turnip in Other Locations
Frequently Asked Questions
When should I plant Turnip in Butte County, ID?
Butte County is in Zone 5a with an average last frost of June 1. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.
What planting zone is Butte County, ID?
Butte County, Idaho is in USDA Hardiness Zone 5a. The average last spring frost is June 1 and first fall frost is September 14.
When should I plant Turnip in Butte County, ID?
In Butte County, ID, plant Turnip after the last frost (around June 1) and before the first frost (around September 14). Best results when soil holds above 50°F.
What growing zone is Butte County, ID for Turnip?
Butte County sits in USDA Zone 5a. Turnip grows reliably in zones 2a through 10b, so it's a good fit here.
Can Turnip grow in Butte County's climate?
Yes — Turnip grows well in Butte County's temperate climate. Butte County averages a 105-day frost-free season, with last frost around June 1 and first frost around September 14.
Your Butte County Garden Planner — Free
A 22-page printable planner built for Butte County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.