When to plant Ageratum in Clay County, AR
Clay County gardeners should plant Ageratum between March 27 and April 17 in spring. With Clay County's Zone 7b climate (last frost March 27), Ageratum needs 60–75 days to mature — plant by August 19 for a full harvest.
When to Plant Ageratum in Clay County, AR
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.
Clay County, Arkansas is in USDA Zone 7b. The average last spring frost is March 27 and the first fall frost is November 2, giving you a growing season of approximately 220 days.
At an elevation of 1,448 feet, Clay County receives approximately 54.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Ageratum during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ageratum root diseases.
Clay County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Ageratum Planting Timeline — Clay County, AR
Ageratum Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 13 | Feb 13 – Feb 27 |
| Transplant Outdoors | March 27 | Mar 27 – Apr 10 |
| Direct Sow | March 27 | Mar 27 – Apr 17 |
| Bloom | May 22 | May 22 – Sep 25 |
· 8" apart · Rows 10" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Bloom |
| 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 7b
📆 Growing Season
220 days in Clay County
Growing Tips for Clay 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 Clay County, AR?
Clay County is in Zone 7b with an average last frost of March 27. Plan your Ageratum planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clay County, AR?
Clay County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 27 and first fall frost is November 2.
When should I plant Ageratum in Clay County, AR?
In Clay County, AR, plant Ageratum after the last frost (around March 27) and before the first frost (around November 2). Best results when soil holds above 50°F.
What growing zone is Clay County, AR for Ageratum?
Clay County sits in USDA Zone 7b. Ageratum grows reliably in zones 3a through 11b, so it's a good fit here.
Can Ageratum grow in Clay County's climate?
Yes — Ageratum grows well in Clay County's temperate climate. Clay County averages a 220-day frost-free season, with last frost around March 27 and first frost around November 2.
Your Clay County Garden Planner — Free
A 22-page printable planner built for Clay County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.