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When to plant Pansy in Modoc County County,

Modoc County County's spring Pansy window runs May 31 through June 14. time plantings around the expected last-frost window for best survival. A second sowing from July 27 to August 10 extends the harvest into fall.

When to Plant Pansy in Modoc County, CA

Modoc County, California Zone 6b June

This month in Modoc County, California

June is a pivotal month for Modoc County, California gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost May 31
Avg. first frost September 21
Soil temp (4") 68°F
Watering Critical
Pest pressure High
Daylight 15 hrs
Before July arrives, get these ready
  • First harvests: pansy
  • Fall sowing: 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.

Modoc County, California is in USDA Zone 6b. The average last spring frost is May 31 and the first fall frost is September 21, giving you a growing season of approximately 113 days.

At an elevation of 2,205 feet, Modoc County receives approximately 28.3 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Pansy to ensure they mature before fall.

Annual Blooms in Spring Pollinator-friendly Good for cutting
Modoc County, CA (Zone 6b) Short season
113 days
Last Spring Frost May 31
113 growing days
First Fall Frost September 21

Modoc County Soil Profile

Soil Type

Loam

Soil pH

5.9-7.4

Drainage

Well Drained

Pansy Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Mar 10 Transplant: May 19 🌸 Bloom: Jul 14 – Sep 22
Recommended (50%) ✗ May not fit
Start indoors: Mar 22 Transplant: May 31 🌸 Bloom: Jul 26 – Oct 4
Safe Start (90%) ✗ May not fit
Start indoors: Apr 10 Transplant: Jun 19 🌸 Bloom: Aug 14 – Oct 23

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 Modoc County

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

Soil pH

Your soil pH (5.9–7.4) is more alkaline than Pansy prefers (5.4–6.2). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Pansy.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Pansy.

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.

Pansy Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 299 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 5.6" 0" ❄️ Dormant
Feb 5.8" 0" ❄️ Dormant
Mar 4.1" 0" ❄️ Dormant
Apr 2.1" 0" ❄️ Dormant
May 4.3" 0.7" 3.6" 🚿 Regular watering
Jun 4.3" 0.1" 4.2" 🚿 Regular watering
Jul 4.3" 0" 4.3" 🚿 Regular watering
Aug 4.3" 0" 4.3" 🚿 Regular watering
Sep 4.3" 0.4" 3.9" 🚿 Regular watering
Oct 1.3" 0" ❄️ Dormant
Nov 2.7" 0" ❄️ Dormant
Dec 5.5" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Modoc 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 ~980 GDD — county provides 1,384 GDD Excellent fit

Pansy Planting Timeline — Modoc County, CA

Pansy Planting Calendar

Activity When Date Range
Start Indoors March 22 Mar 22 – Apr 5
Transplant Outdoors May 31 May 31 – Jun 14
Bloom July 26 Jul 26 – Oct 4
Fall Sowing July 27 Jul 27 – Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.4–6.2 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

113 days in Modoc County

Growing Tips for Pansy in Modoc County

Direct sow Pansy outdoors after May 31 in Modoc County when soil has warmed and frost danger has passed.

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 Modoc County, CA?

Modoc County is in Zone 6b with an average last frost of May 31. Plan your Pansy planting based on this frost date — see the calendar above for exact timing.

What planting zone is Modoc County, CA?

Modoc County, California is in USDA Hardiness Zone 6b. The average last spring frost is May 31 and first fall frost is September 21.

When should I plant Pansy in Modoc County, ?

In Modoc County, , plant Pansy after the last frost (around May 31) and before the first frost (around September 21). Best results when soil holds above 50°F.

What growing zone is Modoc County, for Pansy?

Modoc County sits in USDA Zone 6b. Pansy grows reliably in zones 3a through 10b, so it's a good fit here.

Can Pansy grow in Modoc County's climate?

Yes — Pansy grows well in Modoc County's temperate climate. Modoc County averages a 113-day frost-free season, with last frost around May 31 and first frost around September 21.

🌱

Your Modoc County Garden Planner — Free

A 22-page printable planner built for Modoc County (Zone 6b). 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 Modoc County, CA. Local conditions may vary. Last updated: June 2026.

Sources & credits

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