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When to plant Calendula in Madison County County,

Spring Calendula in Madison County County goes in January 8–January 29, once nighttime temps stop dipping near freezing. A second sowing from September 2 to September 16 extends the harvest into fall.

When to Plant Calendula in Madison County, FL

Madison County, Florida Zone 9a June

Your June game plan for Madison County, Florida

Your Madison County, Florida garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost March 5
Avg. first frost November 25
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Collect calendula at their peak

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Looking ahead to July
  • 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.

Madison County, Florida is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 25, giving you a growing season of approximately 265 days.

At an elevation of 434 feet, Madison County receives approximately 61.2 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Calendula may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Calendula will need more frequent watering and organic matter to retain nutrients. 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
Madison County, FL (Zone 9a) Long season
265 days
Last Spring Frost March 5
265 growing days
First Fall Frost November 25

Madison County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.7

Drainage

Well Drained

Calendula Planting Risk Windows

Early Start (70% safe) ✓ Fits season (124 days to spare)
Transplant: Jan 27 🌸 Bloom: Mar 10 – Jul 14
Recommended (50%) ✓ Fits season (125 days to spare)
Transplant: Feb 5 🌸 Bloom: Mar 19 – Jul 23
Safe Start (90%) ✓ Fits season (128 days to spare)
Transplant: Feb 25 🌸 Bloom: Apr 8 – Aug 12

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 Madison County

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

Soil pH

Your soil pH (5.2–5.7) is more acidic than Calendula prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Madison County warms quickly in spring but drains fast. Calendula will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Calendula.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Calendula.

How to Plant Calendula

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

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Succession Planting Calendula

6
successive plantings in your 265-day season

Sow every 5.7 weeks. Last sowing by Sep 16 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

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
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.2" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 2.2" 3.8" 0" ✅ Rainfall sufficient
Apr 2.2" 3.1" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 7.7" 0" ✅ Rainfall sufficient
Jul 2.2" 8" 0" ✅ Rainfall sufficient
Aug 2.2" 9.6" 0" ✅ Rainfall sufficient
Sep 2.2" 8.6" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 2.4" 0" ✅ Rainfall sufficient
Dec 2.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Madison 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 ~1,275 GDD — county provides 5,631 GDD Excellent fit

Calendula Planting Timeline — Madison County, FL

Calendula Planting Calendar

Activity When Date Range
Transplant Outdoors February 5 Feb 5 – Feb 19
Direct Sow January 8 Jan 8 – Jan 29
Bloom March 19 Mar 19 – Jul 23
Fall Sowing September 2 Sep 2 – Sep 16

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

Month-by-Month Timeline

MonthActivities
January Direct Sow
February Transplant Outdoors
March Bloom
April Bloom
May Bloom
June Bloom
July Bloom
August
September Fall Sowing
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: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

265 days in Madison County

Growing Tips for Calendula in Madison County

Direct sow Calendula outdoors after March 05 in Madison County when soil has warmed and frost danger has passed.

Sandy soil in Madison County dries quickly — mulch Calendula with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Madison County, FL?

Madison County is in Zone 9a with an average last frost of March 5. Plan your Calendula planting based on this frost date — see the calendar above for exact timing.

What planting zone is Madison County, FL?

Madison County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 25.

When should I plant Calendula in Madison County County, ?

In Madison County County, , plant Calendula after the last frost (around March 5) and before the first frost (around November 25). Best results when soil holds above 50°F.

What growing zone is Madison County County, for Calendula?

Madison County County sits in USDA Zone 9a. Calendula grows reliably in zones 2a through 11b, so it's a good fit here.

Can Calendula grow in Madison County County's climate?

Yes — Calendula grows well in Madison County County's temperate climate. Madison County County averages a 265-day frost-free season, with last frost around March 5 and first frost around November 25.

🌱

Your Madison County Garden Planner — Free

A 22-page printable planner built for Madison County (Zone 9a). 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 Madison County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.