When to plant Ageratum in Leake County, MS
For Ageratum in Leake County, the safe spring window opens around March 8 and closes around March 29. Last expected frost is March 22, first fall frost November 6, giving a 229-day growing season.
When to Plant Ageratum in Leake County, MS
June to-do list for Leake County, Mississippi
June is a pivotal month for Leake County, Mississippi gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Harvest ageratum as they ripen
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Before July arrives, get these ready
- First harvests: ageratum
Ageratum (Ageratum houstonianum), the floss flower, produces clusters of fluffy, powder-puff blooms in the rare sky-blue and lavender tones difficult to find among warm-season annuals. Compact mounding habit makes it ideal as a front-of-border edging plant. Blooms from early summer through fall with minimal deadheading; heat and humidity tolerant once established.
Leake County, Mississippi is in USDA Zone 8b. The average last spring frost is March 22 and the first fall frost is November 6, giving you a growing season of approximately 229 days.
At an elevation of 243 feet, Leake County receives approximately 59.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Ageratum during the growing season. Clay soil retains moisture well for Ageratum, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ageratum root diseases.
Leake County Soil Profile
Soil Type
Clay Loam
Soil pH
5.6-6.3
Drainage
Well Drained
Ageratum 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 Leake County
How your county's soil matches Ageratum's growing requirements.
Soil pH
Your soil pH (5.6–6.3) is more acidic than Ageratum prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Leake County is excellent for Ageratum — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Ageratum.
How to Plant Ageratum
Succession Planting Ageratum
Sow every 6.9 weeks. Last sowing by Aug 23 to harvest before frost.
Ageratum Water Budget
Monthly Watering Guide for Ageratum
Ageratum needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Ageratum Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5.2" | 0" | ❄️ Dormant |
| Feb | — | 5.4" | 0" | ❄️ Dormant |
| Mar | 4.3" | 6.6" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| May | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 5" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 5.4" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5.6" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Nov | 4.3" | 4.9" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Leake County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Ageratum 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.
Ageratum Planting Timeline — Leake County, MS
Ageratum Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 8 | Feb 8 – Feb 22 |
| Transplant Outdoors | March 8 | Mar 8 – Mar 22 |
| Direct Sow | March 8 | Mar 8 – Mar 29 |
| Bloom | May 3 | May 3 – Oct 4 |
· 8" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | — |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
60–75 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8b
📆 Growing Season
229 days in Leake County
Growing Tips for Ageratum in Leake County
Direct sow Ageratum outdoors after March 22 in Leake County when soil has warmed and frost danger has passed.
With Leake County's clay soil (34% clay), work in 3-4 inches of compost before planting Ageratum. Avoid tilling when soil is wet to prevent compaction.
Common pests for Ageratum in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 6–8 weeks before last frost — do not cover seed; it needs light to germinate. Can be direct-sown after last frost once soil warms to 60°F. Transplant or thin to proper spacing after frost danger passes. Deadheading isn't strictly required but tidying spent clusters improves appearance. Provide consistent moisture; drought causes premature setting. Avoid deep shade — blooms best in full sun to light afternoon shade.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Ageratum in Other Locations
Frequently Asked Questions
When should I plant Ageratum in Leake County, MS?
Leake County is in Zone 8b with an average last frost of March 22. Plan your Ageratum planting based on this frost date — see the calendar above for exact timing.
What planting zone is Leake County, MS?
Leake County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 22 and first fall frost is November 6.
When should I plant Ageratum in Leake County, MS?
In Leake County, MS, plant Ageratum after the last frost (around March 22) and before the first frost (around November 6). Best results when soil holds above 50°F.
What growing zone is Leake County, MS for Ageratum?
Leake County sits in USDA Zone 8b. Ageratum grows reliably in zones 3a through 11b, so it's a good fit here.
Can Ageratum grow in Leake County's climate?
Yes — Ageratum grows well in Leake County's temperate climate. Leake County averages a 229-day frost-free season, with last frost around March 22 and first frost around November 6.
Your Leake County Garden Planner — Free
A 22-page printable planner built for Leake County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.