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When to plant Salvia in Murray County, MN

Murray County's 151-day season only supports one Salvia planting per year. Sow between May 11 and May 25 for the best chance at full maturity before October 2.

When to Plant Salvia in Murray County, MN

Murray County, Minnesota Zone 5a June

Top priorities for Murray County, Minnesota gardeners in June

A quick June briefing for Murray County, Minnesota gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 4
Avg. first frost October 2
Soil temp (4") 65°F
Watering Low
Pest pressure High
Daylight 15.3 hrs
Looking ahead to July
  • Starting indoors: salvia
  • First harvests: salvia

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Salvia splendens is a tender perennial from Brazil grown as a warm-season annual throughout the US. Its vivid, upright flower spikes in brilliant red, purple, and coral are irresistible to hummingbirds, bees, and butterflies. One of the longest-blooming annuals in the landscape — plants bloom from early summer until hard frost with minimal deadheading required.

Murray County, Minnesota is in USDA Zone 5a. The average last spring frost is May 4 and the first fall frost is October 2, giving you a growing season of approximately 151 days.

At an elevation of 1,278 feet, Murray County receives approximately 38 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Salvia to ensure they mature before fall.

Annual Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting Fragrant
Murray County, MN (Zone 5a) Moderate season
151 days
Last Spring Frost May 4
151 growing days
First Fall Frost October 2

Murray County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Salvia Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 23 Transplant: May 4 🌸 Bloom: Jul 13 – Oct 5
Recommended (50%) ✗ May not fit
Start indoors: Mar 2 Transplant: May 11 🌸 Bloom: Jul 20 – Oct 12
Safe Start (90%) ✗ May not fit
Start indoors: Mar 14 Transplant: May 23 🌸 Bloom: Aug 1 – Oct 24

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 Murray County

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

Soil pH

Your soil pH (6.2–7.3) overlaps with Salvia's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Salvia.

How to Plant Salvia

12"
Between Plants
18"
Between Rows

Succession Planting Salvia

2
successive plantings in your 151-day season

Sow every 8 weeks. Last sowing by Jul 04 to harvest before frost.

Salvia Water Budget

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

Monthly Watering Guide for Salvia

Salvia needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Salvia Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 4" 0" ❄️ Dormant
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 4.1" 0.2" 💧 Light watering
Aug 4.3" 4" 0.3" 💧 Light watering
Sep 4.3" 2.8" 1.5" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 2.8" 0" ❄️ Dormant
Dec 2.2" 0" ❄️ Dormant

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

Salvia 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.

Salvia needs ~800 GDD — county provides 1,510 GDD Excellent fit

Salvia Planting Timeline — Murray County, MN

Salvia Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors May 11 May 11 – May 25
Bloom July 20 Jul 20 – Oct 12

· 12" apart · Rows 18" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April
May Transplant Outdoors
June
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

151 days in Murray County

Growing Tips for Salvia in Murray County

Direct sow Salvia outdoors after May 04 in Murray County when soil has warmed and frost danger has passed.

General growing tips

Start indoors 8-10 weeks before last frost; seeds need 65-70°F soil and light to germinate (surface-sow, do not cover). Transplant after last frost when soil has warmed. Salvia is frost-sensitive — even a light frost kills plants. Pinch spent spikes to encourage continued bloom. Tolerates heat and humidity well once established. In zones 9b-11b can be grown as a short-lived perennial.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Salvia in Murray County, MN?

Murray County is in Zone 5a with an average last frost of May 4. Plan your Salvia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Murray County, MN?

Murray County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is May 4 and first fall frost is October 2.

When should I plant Salvia in Murray County, MN?

In Murray County, MN, plant Salvia after the last frost (around May 4) and before the first frost (around October 2). Best results when soil holds above 50°F.

What growing zone is Murray County, MN for Salvia?

Murray County sits in USDA Zone 5a. Salvia grows reliably in zones 2a through 11b, so it's a good fit here.

Can Salvia grow in Murray County's climate?

Yes — Salvia grows well in Murray County's temperate climate. Murray County averages a 151-day frost-free season, with last frost around May 4 and first frost around October 2.

🌱

Your Murray County Garden Planner — Free

A 22-page printable planner built for Murray 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 Murray County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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