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When to Plant Salvia in Phelps County, NE

Phelps County, Nebraska Zone 6a July

Your July game plan for Phelps County, Nebraska

Each item below is timed to Phelps County, Nebraska's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 2
Avg. first frost October 6
Soil temp (4") 78°F
Watering Moderate
Pest pressure High
Daylight 14.6 hrs
  1. Time to start salvia inside

    Label every cell. You will absolutely forget which is which otherwise.

  2. It's harvest week for salvia

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

A few tasks this July that'll pay off in August
  • 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.

Phelps County, Nebraska is in USDA Zone 6a. The average last spring frost is May 2 and the first fall frost is October 6, giving you a growing season of approximately 157 days.

At an elevation of 983 feet, Phelps County receives approximately 24.9 inches of rainfall annually with predominantly loam soil. Summer highs average 84°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
Phelps County, NE (Zone 6a) Moderate season
157 days
Last Spring Frost May 2
157 growing days
First Fall Frost October 6

Phelps County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.2

Drainage

Well Drained

Salvia Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 22 Transplant: May 3 🌸 Bloom: Jul 12 – Oct 18
Recommended (50%) ✗ May not fit
Start indoors: Feb 28 Transplant: May 9 🌸 Bloom: Jul 18 – Oct 24
Safe Start (90%) ✗ May not fit
Start indoors: Mar 12 Transplant: May 21 🌸 Bloom: Jul 30 – Nov 5

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 Phelps County

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

Soil pH

Your soil pH (6.8–7.2) overlaps with Salvia's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.8%). Annual compost additions will help Salvia.

How to Plant Salvia

12"
Between Plants
18"
Between Rows

Succession Planting Salvia

2
successive plantings in your 157-day season

Sow every 8 weeks. Last sowing by Jul 08 to harvest before frost.

Salvia Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 560 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 0.7" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 2.6" 0" ❄️ Dormant
May 4.3" 3.3" 1" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 3.5" 0.8" 💧 Light watering
Aug 4.3" 3" 1.3" 💧 Light watering
Sep 4.3" 2.3" 2" 💧 Light watering
Oct 4.3" 1.5" 2.8" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Phelps 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 ~1,040 GDD — county provides 2,041 GDD Excellent fit

Salvia Planting Timeline — Phelps County, NE

Salvia Planting Calendar

Activity When Date Range
Start Indoors February 28 Feb 28 – Mar 14
Transplant Outdoors May 9 May 9 – May 23
Bloom July 18 Jul 18 – Oct 24

· 12" apart · Rows 18" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
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 · 1-2 times/week

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

157 days in Phelps County

Growing Tips for Salvia in Phelps County

Direct sow Salvia outdoors after May 02 in Phelps County when soil has warmed and frost danger has passed.

Phelps County receives only 25" of rain annually. Salvia needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Phelps County, NE?

Phelps County is in Zone 6a with an average last frost of May 2. Plan your Salvia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Phelps County, NE?

Phelps County, Nebraska is in USDA Hardiness Zone 6a. The average last spring frost is May 2 and first fall frost is October 6.

🌱

Your Phelps County Garden Planner — Free

A 22-page printable planner built for Phelps 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.

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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 Phelps County, NE. Local conditions may vary. Last updated: July 2026.

Sources & credits

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