When to plant Pansy in Johnson County County,
The best window to plant Pansy in Johnson County County, is April 8–April 22, when soil warms to 50°F. Last frost typically hits April 8; first frost October 26. A second sowing from August 31 to September 14 extends the harvest into fall.
When to Plant Pansy in Johnson County, KS
June in Johnson County, Kansas — your action list
Each item below is timed to Johnson County, Kansas's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Indoor seed-starting week for pansy
Label every cell. You will absolutely forget which is which otherwise.
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Pick pansy
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
July prep starts now
- First harvests: pansy
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.
Johnson County, Kansas is in USDA Zone 6b. The average last spring frost is April 8 and the first fall frost is October 26, giving you a growing season of approximately 201 days.
At an elevation of 768 feet, Johnson County receives approximately 27.6 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Pansy during the growing season.
Johnson County Soil Profile
Soil Type
Loam
Soil pH
6.8-7.2
Drainage
Well Drained
Pansy Planting Risk Windows
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 Johnson County
How your county's soil matches Pansy's growing requirements.
Soil pH
Your soil pH (6.8–7.2) is more alkaline than Pansy prefers (5.4–6.2). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Johnson County is excellent for Pansy — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.2%) — Pansy will thrive.
How to Plant Pansy
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Pansy
Sow every 8 weeks. Last sowing by Jul 28 to harvest before frost.
For a dedicated fall crop, sow by Aug 31.
Pansy Water Budget
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 | — | 0.8" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.9" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| May | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Jun | 4.3" | 4.1" | 0.2" | 💧 Light watering |
| Jul | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Aug | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Sep | 4.3" | 2.3" | 2" | 💧 Light watering |
| Oct | 4.3" | 1.8" | 2.5" | 🚿 Regular watering |
| Nov | — | 1" | 0" | ❄️ Dormant |
| Dec | — | 0.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Johnson 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 Planting Timeline — Johnson County, KS
Pansy Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 28 | Jan 28 – Feb 11 |
| Transplant Outdoors | April 8 | Apr 8 – Apr 22 |
| Bloom | June 3 | Jun 3 – Aug 12 |
| Fall Sowing | August 31 | Aug 31 – Sep 14 |
Plant 0.3" deep · 7" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors |
| March | — |
| April | Transplant Outdoors |
| May | — |
| 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 6b
📆 Growing Season
201 days in Johnson County
Growing Tips for Pansy in Johnson County
Direct sow Pansy outdoors after April 08 in Johnson 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 →
Pansy in Other Locations
Frequently Asked Questions
When should I plant Pansy in Johnson County, KS?
Johnson County is in Zone 6b with an average last frost of April 8. Plan your Pansy planting based on this frost date — see the calendar above for exact timing.
What planting zone is Johnson County, KS?
Johnson County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 8 and first fall frost is October 26.
When should I plant Pansy in Johnson County, ?
In Johnson County, , plant Pansy after the last frost (around April 8) and before the first frost (around October 26). Best results when soil holds above 50°F.
What growing zone is Johnson County, for Pansy?
Johnson 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 Johnson County's climate?
Yes — Pansy grows well in Johnson County's temperate climate. Johnson County averages a 201-day frost-free season, with last frost around April 8 and first frost around October 26.
Your Johnson County Garden Planner — Free
A 22-page printable planner built for Johnson 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.