When to plant Pac Choi in Sanders County County,
Sanders County County's climate puts the Pac Choi spring window between May 10 and May 31. time plantings around the expected last-frost window for best survival. A second sowing from July 5 to July 19 extends the harvest into fall.
When to Plant Pac Choi in Sanders County, MT
June in the garden — Sanders County, Montana
Welcome to June in Zone 6a. These are the moves that will have the biggest impact on your growing season.
-
Start pac choi under lights
Your window is short. These crops want several weeks of indoor growth before they go outside.
Before July arrives, get these ready
- First harvests: pac choi
- Fall sowing: pac choi
Pac choi (baby bok choy) is a compact variety of Chinese cabbage with tender leaves and crisp stems. It grows quickly and is ideal for containers and small spaces.
Sanders County, Montana is in USDA Zone 6a. The average last spring frost is May 24 and the first fall frost is September 13, giving you a growing season of approximately 112 days.
At an elevation of 5,775 feet, Sanders County receives approximately 16.4 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Pac Choi during the growing season. With low rainfall, drip irrigation is essential for growing Pac Choi successfully. Mulch heavily to conserve soil moisture.
Sanders County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.9
Drainage
Well Drained
Pac Choi Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Soil Compatibility in Sanders County
How your county's soil matches Pac Choi's growing requirements.
Soil pH
Your soil pH (6.3–7.9) overlaps with Pac Choi's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Sanders County is excellent for Pac Choi — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Pac Choi.
How to Plant Pac Choi
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Pac Choi
Sow every 4.6 weeks. Last sowing by Jul 20 to harvest before frost.
For a dedicated fall crop, sow by Jul 05.
Pac Choi Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Pac Choi
Pac Choi needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.
| Month | Pac Choi Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.1" | 0" | ❄️ Dormant |
| Feb | — | 1" | 0" | ❄️ Dormant |
| Mar | — | 1.3" | 0" | ❄️ Dormant |
| Apr | — | 1.7" | 0" | ❄️ Dormant |
| May | 6.5" | 1.8" | 4.7" | 🚿 Regular watering |
| Jun | 6.5" | 1.3" | 5.2" | 🚿 Regular watering |
| Jul | 6.5" | 1.5" | 5" | 🚿 Regular watering |
| Aug | 6.5" | 1.7" | 4.8" | 🚿 Regular watering |
| Sep | 6.5" | 1.4" | 5.1" | 🚿 Regular watering |
| Oct | — | 1.4" | 0" | ❄️ Dormant |
| Nov | — | 1.2" | 0" | ❄️ Dormant |
| Dec | — | 1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Sanders County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Pac Choi Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Pac Choi Planting Timeline — Sanders County, MT
Pac Choi Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 19 | Apr 19 – May 3 |
| Transplant Outdoors | May 24 | May 24 – Jun 7 |
| Direct Sow | May 10 | May 10 – May 31 |
| Harvest | July 5 | Jul 5 – Aug 2 |
| Fall Sowing | July 5 | Jul 5 – Jul 19 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Transplant Outdoors Direct Sow |
| June | Transplant Outdoors |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1.5"/week · 2-3 times/week
📅 Days to Maturity
40–55 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 6a
📆 Growing Season
112 days in Sanders County
Growing Tips for Pac Choi in Sanders County
Direct sow Pac Choi outdoors after May 24 in Sanders County when soil has warmed and frost danger has passed.
Common pests for Pac Choi in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
Sanders County receives only 16" of rain annually. Pac Choi needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Direct sow in spring or fall. Grows best in cool weather. Space 6 inches apart for baby pac choi. Harvest whole plants or cut outer leaves as needed.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Pac Choi in Other Locations
Frequently Asked Questions
When should I plant Pac Choi in Sanders County, MT?
Sanders County is in Zone 6a with an average last frost of May 24. Plan your Pac Choi planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sanders County, MT?
Sanders County, Montana is in USDA Hardiness Zone 6a. The average last spring frost is May 24 and first fall frost is September 13.
When should I plant Pac Choi in Sanders County County, ?
In Sanders County County, , plant Pac Choi after the last frost (around May 24) and before the first frost (around September 13). Best results when soil holds above 50°F.
What growing zone is Sanders County County, for Pac Choi?
Sanders County County sits in USDA Zone 6a. Pac Choi grows reliably in zones 2a through 11b, so it's a good fit here.
Can Pac Choi grow in Sanders County County's climate?
Yes — Pac Choi grows well in Sanders County County's temperate climate. Sanders County County averages a 112-day frost-free season, with last frost around May 24 and first frost around September 13.
Your Sanders County Garden Planner — Free
A 22-page printable planner built for Sanders County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.