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When to plant Sweet Pea in Cloud County, KS

Sweet Pea planted in Cloud County between March 12 and April 2 matures in 65–85 days — well before the October 18 first frost.

When to Plant Sweet Pea in Cloud County, KS

Cloud County, Kansas Zone 6b June

Cloud County, Kansas gardeners: here's your June plan

Your garden in Cloud County, Kansas is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost April 16
Avg. first frost October 18
Soil temp (4") 68°F
Watering Moderate
Pest pressure High
Daylight 14.8 hrs

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Sweet peas (Lathyrus odoratus) are beloved cool-season climbing annuals grown primarily for their intensely fragrant, ruffled blooms in shades of pink, purple, red, and white. They thrive in cool spring conditions, climbing trellises to 4–6 feet, and make outstanding cut flowers. Bloom ceases once summer heat arrives, making early sowing critical for a long cutting season.

Cloud County, Kansas is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 18, giving you a growing season of approximately 185 days.

At an elevation of 810 feet, Cloud County receives approximately 22.5 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Sweet Pea to ensure they mature before fall.

Annual Blooms in Spring Pollinator-friendly Good for cutting Fragrant
Cloud County, KS (Zone 6b) Moderate season
185 days
Last Spring Frost April 16
185 growing days
First Fall Frost October 18

Cloud County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.2

Drainage

Well Drained

Sweet Pea Planting Risk Windows

Early Start (70% safe) ✓ Fits season (36 days to spare)
Start indoors: Mar 1 Transplant: Apr 12 🌸 Bloom: Jun 28 – Sep 6
Recommended (50%) ✓ Fits season (38 days to spare)
Start indoors: Mar 5 Transplant: Apr 16 🌸 Bloom: Jul 2 – Sep 10
Safe Start (90%) ✓ Fits season (37 days to spare)
Start indoors: Mar 19 Transplant: Apr 30 🌸 Bloom: Jul 16 – Sep 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 Cloud County

How your county's soil matches Sweet Pea's growing requirements.

Soil pH

Your soil pH (6.2–7.2) is more acidic than Sweet Pea prefers (7.0–7.5). Add garden lime to raise pH.

Soil Texture

The loam soil in Cloud County is excellent for Sweet Pea — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.4%) — Sweet Pea will thrive.

How to Plant Sweet Pea

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Succession Planting Sweet Pea

3
successive plantings in your 185-day season

Sow every 7.4 weeks. Last sowing by Jul 25 to harvest before frost.

Sweet Pea 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 967 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Sweet Pea

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

Month Sweet Pea Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 4.3" 2.4" 1.9" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 3.3" 1" 💧 Light watering
Jul 4.3" 2.7" 1.6" 💧 Light watering
Aug 4.3" 2.6" 1.7" 💧 Light watering
Sep 4.3" 2" 2.3" 🚿 Regular watering
Oct 4.3" 1.5" 2.8" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

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

Sweet Pea 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.

Sweet Pea needs ~975 GDD — county provides 2,405 GDD Excellent fit

Sweet Pea Planting Timeline — Cloud County, KS

Sweet Pea Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 – Mar 19
Transplant Outdoors April 16 Apr 16 – Apr 30
Direct Sow March 12 Mar 12 – Apr 2
Bloom July 2 Jul 2 – Sep 10

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

65–85 days

🧪 Soil pH

Needs 7–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6b

📆 Growing Season

185 days in Cloud County

Growing Tips for Sweet Pea in Cloud County

Direct sow Sweet Pea outdoors after April 16 in Cloud County when soil has warmed and frost danger has passed.

Common pests for Sweet Pea in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

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

General growing tips

Soak seeds 24 hours before sowing to soften the hard seed coat; nick the seed coat with a file for the fastest germination. In cold zones (2–6), direct-sow as soon as soil can be worked, 4–6 weeks before last frost; seedlings tolerate light frost but not a hard freeze. In zones 7–9, fall-sow 8–10 weeks before first frost for earlier, stronger spring bloom. Provide a trellis or netting from the start. Feed with low-nitrogen, high-potassium fertilizer once buds form. Pick blooms regularly — even one mature seed pod stops flower production. All plant parts are mildly toxic if eaten.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sweet Pea in Cloud County, KS?

Cloud County is in Zone 6b with an average last frost of April 16. Plan your Sweet Pea planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cloud County, KS?

Cloud County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 18.

When should I plant Sweet Pea in Cloud County, KS?

In Cloud County, KS, plant Sweet Pea after the last frost (around April 16) and before the first frost (around October 18). Best results when soil holds above 50°F.

What growing zone is Cloud County, KS for Sweet Pea?

Cloud County sits in USDA Zone 6b. Sweet Pea grows reliably in zones 2a through 9b, so it's a good fit here.

Can Sweet Pea grow in Cloud County's climate?

Yes — Sweet Pea grows well in Cloud County's temperate climate. Cloud County averages a 185-day frost-free season, with last frost around April 16 and first frost around October 18.

🌱

Your Cloud County Garden Planner — Free

A 22-page printable planner built for Cloud 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 Cloud County, KS. 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.