When to plant Cosmos in Morgan County, AL
Plant Cosmos in Morgan County after March 27; the prime window is March 13–April 3.
When to Plant Cosmos in Morgan County, AL
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.
Morgan County, Alabama is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is November 6, giving you a growing season of approximately 224 days.
At an elevation of 386 feet, Morgan County receives approximately 54.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Cosmos during the growing season. Clay soil retains moisture well for Cosmos, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cosmos root diseases.
Morgan County Soil Profile
Soil Type
Clay Loam
Soil pH
5.7-6.7
Drainage
Well Drained
Monthly Watering Guide for Cosmos
Cosmos needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Cosmos Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5" | 0" | ❄️ Dormant |
| Feb | — | 3.9" | 0" | ❄️ Dormant |
| Mar | 4.3" | 5.6" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 5" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Oct | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Nov | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Dec | — | 4.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Morgan County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cosmos Planting Timeline — Morgan County, AL
Cosmos Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 27 | Feb 27 – Mar 13 |
| Transplant Outdoors | March 13 | Mar 13 – Mar 27 |
| Direct Sow | March 13 | Mar 13 – Apr 3 |
| Bloom | May 22 | May 22 – Oct 9 |
Plant 0.3" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Direct Sow |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–8 · Your soil: N/A
🗺️ USDA Zone
Zone 8a
📆 Growing Season
224 days in Morgan County
Growing Tips for Morgan County
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 Morgan County, AL?
Morgan County is in Zone 8a with an average last frost of March 27. Plan your Cosmos planting based on this frost date — see the calendar above for exact timing.
What planting zone is Morgan County, AL?
Morgan County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is November 6.
When should I plant Cosmos in Morgan County, AL?
In Morgan County, AL, plant Cosmos after the last frost (around March 27) and before the first frost (around November 6). Best results when soil holds above 50°F.
What growing zone is Morgan County, AL for Cosmos?
Morgan County sits in USDA Zone 8a. Cosmos grows reliably in zones 2a through 11b, so it's a good fit here.
Can Cosmos grow in Morgan County's climate?
Yes — Cosmos grows well in Morgan County's temperate climate. Morgan County averages a 224-day frost-free season, with last frost around March 27 and first frost around November 6.
Your Morgan County Garden Planner — Free
A 22-page printable planner built for Morgan County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.