When to plant Cosmos in Hodgeman County County,
The best window to plant Cosmos in Hodgeman County County, is April 21–May 12, when soil warms to 50°F. Last frost typically hits April 21; first frost October 16.
When to Plant Cosmos in Hodgeman County, KS
Your June planting checklist for Hodgeman County, Kansas
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
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Basket week: cosmos
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
To set up a strong July, finish these tasks
- First harvests: cosmos
Cosmos (Cosmos bipinnatus) is an airy, feathery-foliaged cottage garden annual from Mexico that thrives on neglect. It produces delicate daisy-like blooms in shades of pink, white, and magenta from midsummer until frost. Cosmos is a prolific self-sower — once established in a garden it often returns year after year without replanting. Excellent habitat plant for beneficial insects.
Hodgeman County, Kansas is in USDA Zone 6b. The average last spring frost is April 21 and the first fall frost is October 16, giving you a growing season of approximately 178 days.
At an elevation of 662 feet, Hodgeman County receives approximately 27.8 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Cosmos during the growing season.
Hodgeman County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.5
Drainage
Well Drained
Cosmos 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 Hodgeman County
How your county's soil matches Cosmos's growing requirements.
Soil pH
Your soil pH (6.7–7.5) is within Cosmos's preferred range (6.0–8.0).
Soil Texture
The loam soil in Hodgeman County is excellent for Cosmos — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.5%). Annual compost additions will help Cosmos.
How to Plant Cosmos
Succession Planting Cosmos
Sow every 6.9 weeks. Last sowing by Jul 18 to harvest before frost.
Cosmos Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Cosmos
Cosmos needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Cosmos Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.8" | 0" | ❄️ Dormant |
| Feb | — | 0.8" | 0" | ❄️ Dormant |
| Mar | — | 1.6" | 0" | ❄️ Dormant |
| Apr | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 3.9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 3" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 1.6" | 0.6" | 💧 Light watering |
| Nov | — | 0.9" | 0" | ❄️ Dormant |
| Dec | — | 0.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Hodgeman County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cosmos 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.
Cosmos Planting Timeline — Hodgeman County, KS
Cosmos Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 24 | Mar 24 – Apr 7 |
| Transplant Outdoors | April 21 | Apr 21 – May 5 |
| Direct Sow | April 21 | Apr 21 – May 12 |
| Bloom | June 30 | Jun 30 – Oct 13 |
Plant 0.3" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–8 · Your soil: ideal
🗺️ USDA Zone
Zone 6b
📆 Growing Season
178 days in Hodgeman County
Growing Tips for Cosmos in Hodgeman County
Direct sow Cosmos outdoors after April 21 in Hodgeman County when soil has warmed and frost danger has passed.
Common pests for Cosmos in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct-sow after last frost; cosmos germinates readily at 65-80°F in 7-10 days. Avoid rich soil — excess fertility produces lush foliage at the expense of blooms. Cosmos tolerates poor, dry soil exceptionally well. Pinch seedlings at 8 inches to encourage branching. Self-sows freely; allow some seed heads to mature and drop for a no-fuss perennial effect in warm climates.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Cosmos in Other Locations
Frequently Asked Questions
When should I plant Cosmos in Hodgeman County, KS?
Hodgeman County is in Zone 6b with an average last frost of April 21. Plan your Cosmos planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hodgeman County, KS?
Hodgeman County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 21 and first fall frost is October 16.
When should I plant Cosmos in Hodgeman County County, ?
In Hodgeman County County, , plant Cosmos after the last frost (around April 21) and before the first frost (around October 16). Best results when soil holds above 50°F.
What growing zone is Hodgeman County County, for Cosmos?
Hodgeman County County sits in USDA Zone 6b. Cosmos grows reliably in zones 2a through 11b, so it's a good fit here.
Can Cosmos grow in Hodgeman County County's climate?
Yes — Cosmos grows well in Hodgeman County County's temperate climate. Hodgeman County County averages a 178-day frost-free season, with last frost around April 21 and first frost around October 16.
Your Hodgeman County Garden Planner — Free
A 22-page printable planner built for Hodgeman 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.