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When to Plant Pansy in Jefferson County, NE

Jefferson County, Nebraska Zone 6a June

June to-do list for Jefferson County, Nebraska

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Jefferson County, Nebraska.

Avg. last frost April 22
Avg. first frost October 13
Soil temp (4") 68°F
Watering Moderate
Pest pressure High
Daylight 14.8 hrs
  1. Collect pansy at their peak

    If you can't use it all right away, check the food-preservation section of your planner.

A few tasks this June that'll pay off in July
  • Starting indoors: pansy
  • First harvests: pansy

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Pansies (Viola × wittrockiana) are beloved cool-season annuals offering some of the widest color range in the annual garden. Their cheerful "faces" appear in early spring — or even late winter in mild climates — and hold up remarkably well through frosts. Heat causes them to go leggy and stop blooming; replace with warm-season annuals once daytime temps exceed 70°F.

Jefferson County, Nebraska is in USDA Zone 6a. The average last spring frost is April 22 and the first fall frost is October 13, giving you a growing season of approximately 174 days.

At an elevation of 727 feet, Jefferson County receives approximately 22 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Pansy to ensure they mature before fall.

Annual Blooms in Spring Pollinator-friendly Good for cutting
Jefferson County, NE (Zone 6a) Moderate season
174 days
Last Spring Frost April 22
174 growing days
First Fall Frost October 13

Jefferson County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.7

Drainage

Well Drained

Pansy Planting Risk Windows

Early Start (70% safe) ✓ Fits season (58 days to spare)
Start indoors: Feb 5 Transplant: Apr 16 🌸 Bloom: Jun 11 – Aug 13
Recommended (50%) ✓ Fits season (55 days to spare)
Start indoors: Feb 11 Transplant: Apr 22 🌸 Bloom: Jun 17 – Aug 19
Safe Start (90%) ✓ Fits season (58 days to spare)
Start indoors: Feb 22 Transplant: May 3 🌸 Bloom: Jun 28 – Aug 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 Jefferson County

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

Soil pH

Your soil pH (6.4–7.7) is more alkaline than Pansy prefers (5.4–6.2). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.0%) — Pansy will thrive.

How to Plant Pansy

0.3"
Planting Depth
7"
Between Plants
10"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Pansy

2
successive plantings in your 174-day season

Sow every 8 weeks. Last sowing by Jul 15 to harvest before frost.

For a dedicated fall crop, sow by Aug 18.

Pansy Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 871 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Pansy

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

Month Pansy Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 4.3" 2.3" 2" 💧 Light watering
May 4.3" 3.3" 1" 💧 Light watering
Jun 4.3" 3.1" 1.2" 💧 Light watering
Jul 4.3" 2.6" 1.7" 💧 Light watering
Aug 4.3" 3" 1.3" 💧 Light watering
Sep 4.3" 2.2" 2.1" 💧 Light watering
Oct 4.3" 1.4" 2.9" 🚿 Regular watering
Nov 0.7" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

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

Pansy 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.

Pansy needs ~1,040 GDD — county provides 2,262 GDD Excellent fit

Pansy Planting Timeline — Jefferson County, NE

Pansy Planting Calendar

Activity When Date Range
Start Indoors February 11 Feb 11 – Feb 25
Transplant Outdoors April 22 Apr 22 – May 6
Bloom June 17 Jun 17 – Aug 19
Fall Sowing August 18 Aug 18 – Sep 1

Plant 0.3" deep · 7" apart · Rows 10" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March
April Transplant Outdoors
May Transplant Outdoors
June Bloom
July Bloom
August Fall Sowing Bloom
September Fall Sowing
October
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 5.4–6.2 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

174 days in Jefferson County

Growing Tips for Pansy in Jefferson County

Direct sow Pansy outdoors after April 22 in Jefferson County when soil has warmed and frost danger has passed.

Jefferson County receives only 22" of rain annually. Pansy needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start indoors 10-12 weeks before last frost for spring transplants. In zones 6+, fall planting (8-10 weeks before first frost) gives overwintering plants that bloom earliest in spring. Plant in full sun in cool weather; afternoon shade helps extend bloom in zones 7-8. Deadhead to prevent premature seed set. Shear back by one-third when plants go leggy to extend the season.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pansy in Jefferson County, NE?

Jefferson County is in Zone 6a with an average last frost of April 22. Plan your Pansy planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jefferson County, NE?

Jefferson County, Nebraska is in USDA Hardiness Zone 6a. The average last spring frost is April 22 and first fall frost is October 13.

🌱

Your Jefferson County Garden Planner — Free

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

Sources & credits

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