When to plant Calendula in Franklin County, AR
Franklin County's spring Calendula window runs February 15 through March 8. most warm-season crops establish quickly once soil holds above 60°F. A second sowing from August 23 to September 6 extends the harvest into fall.
When to Plant Calendula in Franklin County, AR
Franklin County, Arkansas gardeners: here's your July plan
July rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Franklin County, Arkansas.
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Pick calendula
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
Before August arrives, get these ready
- First harvests: calendula
- Fall sowing: calendula
Calendula (Calendula officinalis) is a cheerful, edible-flowered cool-season annual valued by herbalists, chefs, and gardeners alike. Its golden-orange petals are used in salves, teas, and as a saffron substitute. Hardy enough to tolerate light frosts, it blooms prolifically in spring and fall, taking a pause during the hottest weeks of summer.
Franklin County, Arkansas is in USDA Zone 8a. The average last spring frost is March 29 and the first fall frost is November 1, giving you a growing season of approximately 217 days.
At an elevation of 1,224 feet, Franklin County receives approximately 47.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Calendula during the growing season.
Franklin County Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-6.6
Drainage
Well Drained
Calendula 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 Franklin County
How your county's soil matches Calendula's growing requirements.
Soil pH
Your soil pH (5.3–6.6) overlaps with Calendula's range (5.5–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Franklin County is excellent for Calendula — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.1%). Annual compost additions will help Calendula.
How to Plant Calendula
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Calendula
Sow every 5.7 weeks. Last sowing by Aug 23 to harvest before frost.
For a dedicated fall crop, sow by Aug 23.
Calendula Water Budget
Monthly Watering Guide for Calendula
Calendula 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 | Calendula Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.5" | 0" | ❄️ Dormant |
| Feb | — | 3.9" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.1" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.1" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.9" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 2.7" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Franklin County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Calendula 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.
Calendula Planting Timeline — Franklin County, AR
Calendula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 15 | Mar 15 – Mar 29 |
| Direct Sow | February 15 | Feb 15 – Mar 8 |
| Bloom | May 3 | May 3 – Sep 13 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
Plant 0.3" deep · 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | — |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Fall Sowing Bloom |
| September | Fall Sowing Bloom |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
217 days in Franklin County
Growing Tips for Calendula in Franklin County
Direct sow Calendula outdoors after March 29 in Franklin County when soil has warmed and frost danger has passed.
Common pests for Calendula in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct-sow in early spring as soon as soil can be worked — seeds germinate in cool soil (50-65°F). In zones 7+, also sow in fall for winter/spring bloom. Deadhead consistently to extend bloom. Plants self-seed readily; save a few spent heads and allow them to drop. Harvest petals when flowers are fully open for best flavor and medicinal value.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Calendula in Other Locations
Frequently Asked Questions
When should I plant Calendula in Franklin County, AR?
Franklin County is in Zone 8a with an average last frost of March 29. Plan your Calendula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Franklin County, AR?
Franklin County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 29 and first fall frost is November 1.
When should I plant Calendula in Franklin County, AR?
In Franklin County, AR, plant Calendula after the last frost (around March 29) and before the first frost (around November 1). Best results when soil holds above 50°F.
What growing zone is Franklin County, AR for Calendula?
Franklin County sits in USDA Zone 8a. Calendula grows reliably in zones 2a through 11b, so it's a good fit here.
Can Calendula grow in Franklin County's climate?
Yes — Calendula grows well in Franklin County's temperate climate. Franklin County averages a 217-day frost-free season, with last frost around March 29 and first frost around November 1.
Your Franklin County Garden Planner — Free
A 22-page printable planner built for Franklin County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.