When to Plant Ranunculus in Carter County, TN
This month in Carter County, Tennessee
June is a pivotal month for Carter County, Tennessee gardens. Focus on these tasks first and you'll set up the rest of the season for success.
Persian ranunculus (Ranunculus asiaticus) produces multi-petaled blooms that rival roses in intricacy and lushness, in a warm palette of reds, oranges, yellows, pinks, and whites. A cornerstone of the specialty cut flower industry, ranunculus produces long, strong stems ideal for bouquets and arrangements. As a cool-season corm, it performs best in the mild shoulder seasons — planted in fall in warm-winter zones, or in early spring where summers arrive quickly. The 'Elegance', 'Amandine', and 'Tecolote' strains are favorites for both home gardens and commercial growers.
Carter County, Tennessee is in USDA Zone 7b. The average last spring frost is April 16 and the first fall frost is October 22, giving you a growing season of approximately 189 days.
At an elevation of 3,776 feet, Carter County receives approximately 53.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Ranunculus during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ranunculus root diseases.
Carter County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-7
Drainage
Well Drained
Ranunculus 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 Carter County
How your county's soil matches Ranunculus's growing requirements.
Soil pH
Your soil pH (5.6–7.0) overlaps with Ranunculus's range (6.0–6.5), though not a perfect match.
Soil Texture
The silt loam soil in Carter County is excellent for Ranunculus — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Ranunculus.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Ranunculus.
How to Plant Ranunculus
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Ranunculus Water Budget
Monthly Watering Guide for Ranunculus
Ranunculus needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Ranunculus Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.8" | 0" | ❄️ Dormant |
| Feb | — | 4" | 0" | ❄️ Dormant |
| Mar | — | 5.2" | 0" | ❄️ Dormant |
| Apr | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5.6" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 4.6" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Nov | — | 3.7" | 0" | ❄️ Dormant |
| Dec | — | 4.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Carter County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Ranunculus 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.
Ranunculus Planting Timeline — Carter County, TN
Ranunculus Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Bloom | September 17 | Sep 17 – Oct 15 |
| Fall Sowing | August 27 | Aug 27 – Sep 10 |
Plant 2" deep · 6" apart · Rows 8" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–6.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 7b
📆 Growing Season
189 days in Carter County
Growing Tips for Ranunculus in Carter County
Direct sow Ranunculus outdoors after April 16 in Carter County when soil has warmed and frost danger has passed.
General growing tips
Pre-soak corms (which look like small octopus tentacles) in cool water for 2–4 hours before planting; do not over-soak. Plant with tentacles pointing downward, 1–2 inches deep and 6 inches apart. Ranunculus demand excellent drainage — they rot in soggy soil. In fall-planting zones (7+), plant October–November and allow to root through mild winter; blooms arrive in March–May. In zones 6, start corms indoors in late winter and transplant out after last frost for a late-spring bloom. Keep soil consistently moist but never waterlogged during growth. After foliage yellows (post-bloom), stop watering, let corms dry, lift them, and store in a cool dry place until replanting. In zones 8b–10b, corms can often be left in ground year-round.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Ranunculus in Other Locations
Frequently Asked Questions
When should I plant Ranunculus in Carter County, TN?
Carter County is in Zone 7b with an average last frost of April 16. Plan your Ranunculus planting based on this frost date — see the calendar above for exact timing.
What planting zone is Carter County, TN?
Carter County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is April 16 and first fall frost is October 22.
Your Carter County Garden Planner — Free
A 22-page printable planner built for Carter 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.