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When to plant Cumin in Big Pine Key, FL

In Big Pine Key, plant Cumin in spring between January 1 and January 22, once soil temps hold above 50°F. Big Pine Key's last frost averages January 1, so aim for a steady week of warm soil before planting. For a fall crop, sow between February 18 and March 4 — roughly 100–120 days before the first frost on December 31.

When to Plant Cumin in Big Pine Key, FL

Monroe County, Florida Zone 11b June

June to-do list for Monroe County, Florida

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Monroe County, Florida.

Avg. last frost January 22
Soil temp (4") 88°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Basket week: cumin

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Before July arrives, get these ready
  • First harvests: cumin

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Cumin is a warm-season annual herb whose seeds are one of the most widely used spices globally. It requires a long, hot growing season of 3-4 months.

Big Pine Key, Florida is in USDA Zone 11b. The average last spring frost is January 22 and the first fall frost is April 15, giving you a growing season of approximately 83 days.

At an elevation of 169 feet, Monroe County receives approximately 55.6 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Cumin during the growing season. Sandy soil warms quickly in spring — great for early planting — but Cumin will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Big Pine Key, FL (Zone 11b) Year-round
365 days
Last Spring Frost No frost
365 growing days
First Fall Frost No frost

Big Pine Key Soil Profile

Soil Type

Sand

Soil pH

4.8-5.7

Drainage

Well Drained

Soil Compatibility in Big Pine Key

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

Soil pH

Your soil pH (4.8–5.7) is more acidic than Cumin prefers (6.0–8.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Cumin.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Cumin.

How to Plant Cumin

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Cumin Water Budget

Plant needs
0.5″/week
Rainfall provides
0.6″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 33 gal / 100 sq ft

Monthly Watering Guide for Cumin

Cumin 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 Cumin Needs Rainfall You Supplement Action
Jan 2.2" 2.3" 0" ✅ Rainfall sufficient
Feb 2.2" 2.7" 0" ✅ Rainfall sufficient
Mar 2.2" 3.8" 0" ✅ Rainfall sufficient
Apr 2.2" 2.5" 0" ✅ Rainfall sufficient
May 2.2" 3.2" 0" ✅ Rainfall sufficient
Jun 2.2" 7.1" 0" ✅ Rainfall sufficient
Jul 2.2" 8.2" 0" ✅ Rainfall sufficient
Aug 2.2" 8.7" 0" ✅ Rainfall sufficient
Sep 2.2" 7.7" 0" ✅ Rainfall sufficient
Oct 2.2" 4.8" 0" ✅ Rainfall sufficient
Nov 2.2" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

Water needs are for active growing months only (Jan–Oct in Monroe County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cumin 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.

Cumin needs ~2,172 GDD — county provides 7,208 GDD Excellent fit

Cumin Planting Timeline — Big Pine Key, FL

Cumin Planting Calendar

Activity When Date Range
Start Indoors December 25 Dec 25 – Jan 8
Transplant Outdoors January 15 Jan 15 – Jan 29
Direct Sow January 1 Jan 1 – Jan 22
Harvest April 30 Apr 30 – Jul 2
Fall Sowing February 18 Feb 18 – Mar 4

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors Transplant Outdoors Direct Sow
February Fall Sowing
March Fall Sowing
April Harvest
May Harvest
June Harvest
July Harvest
August
September
October
November
December Start Indoors

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 11b

📆 Growing Season

365 days in Monroe County

Growing Tips for Cumin in Big Pine Key

Direct sow Cumin outdoors after January 22 in Monroe County when soil has warmed and frost danger has passed.

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

Common pests for Cumin in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4 weeks before last frost. Transplant after all danger of frost. Harvest when seed heads turn brown. Requires consistent warmth for proper seed development.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

When should I plant Cumin in Big Pine Key, FL?

In Big Pine Key, FL, plant Cumin after the last frost (around January 1) and before the first frost (around December 31). Best results when soil holds above 50°F.

What growing zone is Big Pine Key, FL for Cumin?

Big Pine Key sits in USDA Zone 11b. Cumin grows reliably in zones 5a through 11b, so it's a good fit here.

Can Cumin grow in Big Pine Key's climate?

Yes — Cumin grows well in Big Pine Key's temperate climate. Big Pine Key averages a 365-day frost-free season, with last frost around January 1 and first frost around December 31.

🌱

Your Monroe County Garden Planner — Free

A 22-page printable planner built for Monroe County (Zone 11b). 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 Monroe County, FL. Local conditions may vary. Last updated: June 2026.