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When to Plant Sage in Hennepin County, MN

Hennepin County, Minnesota Zone 5a May

Your May planting checklist for Hennepin County, Minnesota

We've pulled the most time-sensitive tasks for Hennepin County, Minnesota this May and put them front and centre. Tackle them in order.

Avg. last frost April 23
Avg. first frost October 9
Soil temp (4") 55°F
Watering Low
Pest pressure Low
Daylight 14.7 hrs

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Sage is a woody perennial herb with velvety gray-green leaves and a warm, peppery flavor. It is a traditional seasoning for poultry, stuffing, and sausage.

Hennepin County, Minnesota is in USDA Zone 5a. The average last spring frost is April 23 and the first fall frost is October 9, giving you a growing season of approximately 169 days.

At an elevation of 694 feet, Hennepin County receives approximately 36.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Sage to ensure they mature before fall.

Hennepin County, MN (Zone 5a) Moderate season
169 days
Last Spring Frost April 23
169 growing days
First Fall Frost October 9

Hennepin County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (30 days to spare)
Transplant: Apr 24 🍅 Harvest: Jul 10 – Sep 4
Recommended (50%) ✓ Fits season (29 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 16 – Sep 10
Safe Start (90%) ✓ Fits season (26 days to spare)
Transplant: May 20 🍅 Harvest: Aug 5 – Sep 30

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 Hennepin County

How your county's soil matches Sage's growing requirements.

Soil pH

Your soil pH (6.1–7.2) overlaps with Sage's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Hennepin County is excellent for Sage — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Sage.

Organic Matter

Organic matter is excellent (4.1%) — Sage will thrive.

How to Plant Sage

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Sage

2
successive plantings in your 169-day season

Sow every 8.6 weeks. Last sowing by Jul 11 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Sage

Sage needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Sage Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.7" 0" ❄️ Dormant
Apr 1.3" 3.2" 0" ✅ Rainfall sufficient
May 1.3" 4.4" 0" ✅ Rainfall sufficient
Jun 1.3" 4.5" 0" ✅ Rainfall sufficient
Jul 1.3" 4.1" 0" ✅ Rainfall sufficient
Aug 1.3" 3.7" 0" ✅ Rainfall sufficient
Sep 1.3" 3.4" 0" ✅ Rainfall sufficient
Oct 1.3" 3.2" 0" ✅ Rainfall sufficient
Nov 2.3" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Hennepin County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Sage 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.

Sage needs ~949 GDD — county provides 1,943 GDD Excellent fit

Sage Planting Timeline — Hennepin County, MN

Sage Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 – May 14
Harvest July 16 Jul 16 – Sep 10

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

75–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

169 days in Hennepin County

Growing Tips for Sage in Hennepin County

Direct sow Sage outdoors after April 23 in Hennepin County when soil has warmed and frost danger has passed.

General growing tips

Start from seed or cuttings. Prune after flowering to maintain shape. Replace plants every 4-5 years when they become woody and less productive. Excellent drainage is essential.

Companion Planting

Good Companions

Avoid Planting Near

  • Cucumber
  • Rue

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sage in Hennepin County, MN?

Hennepin County is in Zone 5a with an average last frost of April 23. Plan your Sage planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hennepin County, MN?

Hennepin County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is April 23 and first fall frost is October 9.

🌱

Your Hennepin County Garden Planner — Free

A 24-page printable planner built for Hennepin 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Hennepin County, MN. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.