When to plant Ageratum in Fayette County, IN
Fayette County gardeners should plant Ageratum between April 25 and May 16 in spring. With Fayette County's Zone 6a climate (last frost April 25), Ageratum needs 60–75 days to mature — plant by August 3 for a full harvest.
When to Plant Ageratum in Fayette County, IN
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.
Fayette County, Indiana is in USDA Zone 6a. The average last spring frost is April 25 and the first fall frost is October 17, giving you a growing season of approximately 175 days.
At an elevation of 612 feet, Fayette County receives approximately 34.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Ageratum during the growing season.
Fayette County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Ageratum Planting Timeline — Fayette County, IN
Ageratum Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 7 | Mar 7 – Mar 21 |
| Transplant Outdoors | April 25 | Apr 25 – May 9 |
| Direct Sow | April 25 | Apr 25 – May 16 |
| Bloom | June 20 | Jun 20 – Sep 26 |
· 8" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–75 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
175 days in Fayette County
Growing Tips for Fayette County
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
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Ageratum in Other Locations
Frequently Asked Questions
When should I plant Ageratum in Fayette County, IN?
Fayette County is in Zone 6a with an average last frost of April 25. Plan your Ageratum planting based on this frost date — see the calendar above for exact timing.
What planting zone is Fayette County, IN?
Fayette County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 25 and first fall frost is October 17.
When should I plant Ageratum in Fayette County, IN?
In Fayette County, IN, plant Ageratum after the last frost (around April 25) and before the first frost (around October 17). Best results when soil holds above 50°F.
What growing zone is Fayette County, IN for Ageratum?
Fayette County sits in USDA Zone 6a. Ageratum grows reliably in zones 3a through 11b, so it's a good fit here.
Can Ageratum grow in Fayette County's climate?
Yes — Ageratum grows well in Fayette County's temperate climate. Fayette County averages a 175-day frost-free season, with last frost around April 25 and first frost around October 17.
Your Fayette County Garden Planner — Free
A 22-page printable planner built for Fayette County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.