When to plant Irises in Pemiscot County, MO
In Pemiscot County, Irises is a spring-only crop. Plant April 6–April 20 once soil hits 50°F.
When to Plant Irises in Pemiscot County, MO
Bearded Iris (Iris germanica) are among the most regal flowers of the late-spring garden, producing elegantly ruffled blooms in virtually every color of the rainbow — often in spectacular bicolor combinations. Named for the fuzzy "beard" on the lower falls (petals), bearded irises grow from thick horizontal rhizomes that spread to form dense clumps over time. Individual blooms last only a few days, but a well-established clump produces successive flowers over 3–4 weeks. Many are intensely fragrant. Native iris species including blue flag iris (I. versicolor) and Virginia iris (I. virginica) are excellent choices for wet or native garden settings.
Pemiscot County, Missouri is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 31, giving you a growing season of approximately 215 days.
At an elevation of 553 feet, Pemiscot County receives approximately 38.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Irises during the growing season.
Pemiscot County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Irises Planting Timeline — Pemiscot County, MO
Irises Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 6 | Apr 6 – Apr 20 |
| Bloom | May 25 | May 25 – Jun 29 |
Plant 0.5" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | Bloom |
| June | Bloom |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
60–100 days
🧪 Soil pH
Needs 6.8–7 · Your soil: N/A
🗺️ USDA Zone
Zone 7b
📆 Growing Season
215 days in Pemiscot County
Growing Tips for Pemiscot County
Plant rhizomes in late summer to early fall (July–September) after bloom season, setting them horizontally with the top of the rhizome at or just slightly below soil surface — never deeply buried. Full sun is essential for best bloom; at least 6 hours. Well-drained soil is critical; wet rhizomes rot in winter. After bloom, remove flower stalks but leave foliage until it browns in fall. Divide every 3–5 years in late summer when clumps become congested (crowded rhizomes stop blooming). Iris borer is the primary pest — remove and destroy affected fans. Year 2+ after division delivers the most bloom; freshly divided rhizomes may have limited or no bloom in their first season.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Irises in Other Locations
Frequently Asked Questions
When should I plant Irises in Pemiscot County, MO?
Pemiscot County is in Zone 7b with an average last frost of March 30. Plan your Irises planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pemiscot County, MO?
Pemiscot County, Missouri is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is October 31.
When should I plant Irises in Pemiscot County, MO?
In Pemiscot County, MO, plant Irises after the last frost (around March 30) and before the first frost (around October 31). Best results when soil holds above 50°F.
What growing zone is Pemiscot County, MO for Irises?
Pemiscot County sits in USDA Zone 7b. Irises grows reliably in zones 3a through 9b, so it's a good fit here.
Can Irises grow in Pemiscot County's climate?
Yes — Irises grows well in Pemiscot County's temperate climate. Pemiscot County averages a 215-day frost-free season, with last frost around March 30 and first frost around October 31.
Your Pemiscot County Garden Planner — Free
A 22-page printable planner built for Pemiscot 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.