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When to plant Artichoke in Union County, FL

In Union County, Artichoke is a single-season spring crop — there's no second fall window. Plant March 15–March 29 for an 120–180-day harvest, finishing well before the November 27 first frost.

When to Plant Artichoke in Union County, FL

Union County, Florida Zone 9a July

July in the garden — Union County, Florida

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

Avg. last frost March 1
Avg. first frost November 27
Soil temp (4") 97°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Bring in the artichoke

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Before August arrives, get these ready
  • First harvests: artichoke

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Globe artichokes are large thistle-like perennials prized for their edible flower buds. They produce striking silvery foliage and can be grown as ornamentals.

Union County, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 27, giving you a growing season of approximately 271 days.

At an elevation of 360 feet, Union County receives approximately 60.6 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Artichoke may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Artichoke will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Artichoke root diseases.

Union County, FL (Zone 9a) Year-round
271 days
Last Spring Frost March 1
271 growing days
First Fall Frost November 27

Union County Soil Profile

Soil Type

Sand

Soil pH

5.2-6

Drainage

Well Drained

Artichoke Planting Risk Windows

Early Start (70% safe) ✓ Fits season (65 days to spare)
Transplant: Feb 28 🍅 Harvest: Jul 4 – Sep 12
Recommended (50%) ✓ Fits season (61 days to spare)
Transplant: Mar 15 🍅 Harvest: Jul 19 – Sep 27
Safe Start (90%) ✓ Fits season (59 days to spare)
Transplant: Apr 9 🍅 Harvest: Aug 13 – Oct 22

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 Union County

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

Soil pH

Your soil pH (5.2–6.0) is more acidic than Artichoke prefers (6.5–8.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Artichoke.

Organic Matter

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

How to Plant Artichoke

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Artichoke Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 870 gal / 100 sq ft

Monthly Watering Guide for Artichoke

Artichoke needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Artichoke Needs Rainfall You Supplement Action
Jan 3.1" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 8.1" 0" ✅ Rainfall sufficient
Jul 4.3" 10" 0" ✅ Rainfall sufficient
Aug 4.3" 9" 0" ✅ Rainfall sufficient
Sep 4.3" 7.2" 0" ✅ Rainfall sufficient
Oct 4.3" 4.5" 0" ✅ Rainfall sufficient
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 2.5" 0" ❄️ Dormant

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

Artichoke 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.

Artichoke needs ~3,300 GDD — county provides 5,962 GDD Excellent fit

Artichoke Planting Timeline — Union County, FL

Artichoke Planting Calendar

Activity When Date Range
Transplant Outdoors March 15 Mar 15 – Mar 29
Harvest July 19 Jul 19 – Sep 27

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6.5–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

271 days in Union County

Growing Tips for Artichoke in Union County

Direct sow Artichoke outdoors after March 01 in Union County when soil has warmed and frost danger has passed.

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

With summer highs reaching 96°F in Union County, provide afternoon shade for Artichoke and water deeply in the morning.

Common pests for Artichoke in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8-10 weeks before last frost. Provide consistent moisture and mulch heavily. Harvest buds before scales begin to open for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Artichoke in Union County, FL?

Union County is in Zone 9a with an average last frost of March 1. Plan your Artichoke planting based on this frost date — see the calendar above for exact timing.

What planting zone is Union County, FL?

Union County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 1 and first fall frost is November 27.

When should I plant Artichoke in Union County, FL?

In Union County, FL, plant Artichoke after the last frost (around March 1) and before the first frost (around November 27). Best results when soil holds above 50°F.

What growing zone is Union County, FL for Artichoke?

Union County sits in USDA Zone 9a. Artichoke grows reliably in zones 7a through 11b, so it's a good fit here.

Can Artichoke grow in Union County's climate?

Yes — Artichoke grows well in Union County's temperate climate. Union County averages a 271-day frost-free season, with last frost around March 1 and first frost around November 27.

🌱

Your Union County Garden Planner — Free

A 22-page printable planner built for Union 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 Union County, FL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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