When to Plant Irises in Nottoway County, VA
Your June planting checklist for Nottoway County, Virginia
June is a pivotal month for Nottoway County, Virginia gardens. Focus on these tasks first and you'll set up the rest of the season for success.
-
Collect irises at their peak
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
July prep starts now
- First harvests: irises
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.
Nottoway County, Virginia is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 3, giving you a growing season of approximately 215 days.
At an elevation of 1,054 feet, Nottoway County receives approximately 45.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Irises during the growing season.
Nottoway County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-6.5
Drainage
Well Drained
Irises 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 Nottoway County
How your county's soil matches Irises's growing requirements.
Soil pH
Your soil pH (5.6–6.5) is more acidic than Irises prefers (6.8–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Nottoway County is excellent for Irises — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.1%). Annual compost additions will help Irises.
How to Plant Irises
Succession Planting Irises
Sow every 6.9 weeks. Last sowing by Jul 26 to harvest before frost.
Irises Water Budget
Monthly Watering Guide for Irises
Irises needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Irises Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4" | 0" | ❄️ Dormant |
| Feb | — | 4" | 0" | ❄️ Dormant |
| Mar | — | 3.7" | 0" | ❄️ Dormant |
| Apr | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 3.5" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.1" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Nottoway County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Irises 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.
Irises Planting Timeline — Nottoway County, VA
Irises Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 9 | Apr 9 – Apr 23 |
| Bloom | May 28 | May 28 – Jul 2 |
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 | Bloom |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–100 days
🧪 Soil pH
Needs 6.8–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 7b
📆 Growing Season
215 days in Nottoway County
Growing Tips for Irises in Nottoway County
Direct sow Irises outdoors after April 02 in Nottoway County when soil has warmed and frost danger has passed.
General growing tips
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 Nottoway County, VA?
Nottoway County is in Zone 7b with an average last frost of April 2. Plan your Irises planting based on this frost date — see the calendar above for exact timing.
What planting zone is Nottoway County, VA?
Nottoway County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 3.
Your Nottoway County Garden Planner — Free
A 22-page printable planner built for Nottoway 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.