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When to plant Calendula in Lafayette County, AR

Plant Calendula in Lafayette County after March 21; the prime window is January 31–February 21. A second sowing from September 3 to September 17 extends the harvest into fall.

When to Plant Calendula in Lafayette County, AR

Lafayette County, Arkansas Zone 8b July

Your July planting checklist for Lafayette County, Arkansas

Welcome to July in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 21
Avg. first frost November 12
Soil temp (4") 92°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. It's harvest week for calendula

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Get ahead of August
  • First harvests: calendula

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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.

Lafayette County, Arkansas is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 12, giving you a growing season of approximately 236 days.

At an elevation of 819 feet, Lafayette County receives approximately 54.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Calendula during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Calendula root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
Lafayette County, AR (Zone 8b) Long season
236 days
Last Spring Frost March 21
236 growing days
First Fall Frost November 12

Lafayette County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Calendula Planting Risk Windows

Early Start (70% safe) ✓ Fits season (58 days to spare)
Transplant: Feb 19 🌸 Bloom: Apr 9 – Sep 3
Recommended (50%) ✓ Fits season (61 days to spare)
Transplant: Feb 28 🌸 Bloom: Apr 18 – Sep 12
Safe Start (90%) ✓ Fits season (54 days to spare)
Transplant: Mar 24 🌸 Bloom: May 12 – Oct 6

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 Lafayette County

How your county's soil matches Calendula's growing requirements.

Soil pH

Your soil pH (5.6–6.7) is within Calendula's preferred range (5.5–7.0).

Soil Texture

The silt loam soil in Lafayette County is excellent for Calendula — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Calendula prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Calendula.

How to Plant Calendula

0.3"
Planting Depth
9"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Calendula

5
successive plantings in your 236-day season

Sow every 5.7 weeks. Last sowing by Sep 03 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

Calendula Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 4.9" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 2.2" 4.6" 0" ✅ Rainfall sufficient
Apr 2.2" 4.8" 0" ✅ Rainfall sufficient
May 2.2" 3.9" 0" ✅ Rainfall sufficient
Jun 2.2" 4.6" 0" ✅ Rainfall sufficient
Jul 2.2" 6.5" 0" ✅ Rainfall sufficient
Aug 2.2" 5.1" 0" ✅ Rainfall sufficient
Sep 2.2" 4.1" 0" ✅ Rainfall sufficient
Oct 2.2" 4" 0" ✅ Rainfall sufficient
Nov 2.2" 3.9" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lafayette 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 needs ~1,185 GDD — county provides 4,661 GDD Excellent fit

Calendula Planting Timeline — Lafayette County, AR

Calendula Planting Calendar

Activity When Date Range
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow January 31 Jan 31 – Feb 21
Bloom April 18 Apr 18 – Sep 12
Fall Sowing September 3 Sep 3 – Sep 17

Plant 0.3" deep · 9" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Transplant Outdoors Direct Sow
March Transplant Outdoors
April Bloom
May Bloom
June Bloom
July Bloom
August 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: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

236 days in Lafayette County

Growing Tips for Calendula in Lafayette County

Direct sow Calendula outdoors after March 21 in Lafayette 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 →

Frequently Asked Questions

When should I plant Calendula in Lafayette County, AR?

Lafayette County is in Zone 8b with an average last frost of March 21. Plan your Calendula planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lafayette County, AR?

Lafayette County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 12.

When should I plant Calendula in Lafayette County, AR?

In Lafayette County, AR, plant Calendula after the last frost (around March 21) and before the first frost (around November 12). Best results when soil holds above 50°F.

What growing zone is Lafayette County, AR for Calendula?

Lafayette County sits in USDA Zone 8b. Calendula grows reliably in zones 2a through 11b, so it's a good fit here.

Can Calendula grow in Lafayette County's climate?

Yes — Calendula grows well in Lafayette County's temperate climate. Lafayette County averages a 236-day frost-free season, with last frost around March 21 and first frost around November 12.

🌱

Your Lafayette County Garden Planner — Free

A 22-page printable planner built for Lafayette County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lafayette County, AR. Local conditions may vary. Last updated: July 2026.

Sources & credits

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