When to Plant Chives in Beaverhead County, MT
Your May planting checklist for Beaverhead County, Montana
If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.
Coming up in June — start thinking about
- Transplants going out: chives
Chives are a hardy perennial herb with a mild onion flavor and attractive purple pom-pom flowers. They are one of the easiest herbs to grow and maintain.
Beaverhead County, Montana is in USDA Zone 5a. The average last spring frost is June 10 and the first fall frost is September 12, giving you a growing season of approximately 94 days.
At an elevation of 7,645 feet, Beaverhead County receives approximately 15.7 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Chives to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Chives successfully. Mulch heavily to conserve soil moisture.
Beaverhead County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.8
Drainage
Well Drained
Plant 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 Beaverhead County
How your county's soil matches Chives's growing requirements.
Soil pH
Your soil pH (6.8–7.8) is more alkaline than Chives prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Beaverhead County is excellent for Chives — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Chives.
How to Plant Chives
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Chives
Chives needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.
| Month | Chives Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.2" | 0" | ❄️ Dormant |
| Feb | — | 1" | 0" | ❄️ Dormant |
| Mar | — | 1.3" | 0" | ❄️ Dormant |
| Apr | — | 1.8" | 0" | ❄️ Dormant |
| May | — | 1.9" | 0" | ❄️ Dormant |
| Jun | 1.7" | 1.1" | 0.6" | 💧 Light watering |
| Jul | 1.7" | 1.3" | 0.4" | 💧 Light watering |
| Aug | 1.7" | 1.6" | 0.1" | 💧 Light watering |
| Sep | 1.7" | 1.3" | 0.4" | 💧 Light watering |
| Oct | — | 1.3" | 0" | ❄️ Dormant |
| Nov | — | 1" | 0" | ❄️ Dormant |
| Dec | — | 1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Jun–Sep in Beaverhead County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Chives 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.
Chives Planting Timeline — Beaverhead County, MT
Chives Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 17 | Jun 17 – Jul 1 |
| Harvest | August 19 | Aug 19 – Oct 28 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | Transplant Outdoors |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.4"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 5a
📆 Growing Season
94 days in Beaverhead County
Growing Tips for Chives in Beaverhead County
Direct sow Chives outdoors after June 10 in Beaverhead County when soil has warmed and frost danger has passed.
Your 94.0-day growing season in Beaverhead County is tight for Chives (60.0-90.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Chives in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
Start from seed or divisions in spring. Cut back to 2 inches after flowering to encourage fresh growth. Both the leaves and flowers are edible and delicious.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Chives in Other Locations
Frequently Asked Questions
When should I plant Chives in Beaverhead County, MT?
Beaverhead County is in Zone 5a with an average last frost of June 10. Plan your Chives planting based on this frost date — see the calendar above for exact timing.
What planting zone is Beaverhead County, MT?
Beaverhead County, Montana is in USDA Hardiness Zone 5a. The average last spring frost is June 10 and first fall frost is September 12.
Your Beaverhead County Garden Planner — Free
A 24-page printable planner built for Beaverhead 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.