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When to plant Ground Cherry in Jefferson County County,

Jefferson County County sits in cold Zone 9a. Plant Ground Cherry March 23–April 6 for the single annual harvest; the November 21 first frost closes the window.

When to Plant Ground Cherry in Jefferson County, FL

Jefferson County, Florida Zone 9a June

June to-do list for Jefferson County, Florida

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 9
Avg. first frost November 21
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Start harvesting ground cherry

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

July prep starts now
  • First harvests: ground cherry

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Ground cherries produce small, sweet, tropical-tasting berries enclosed in papery husks. They are related to tomatillos and cape gooseberries and self-sow readily.

Jefferson County, Florida is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 21, giving you a growing season of approximately 257 days.

At an elevation of 105 feet, Jefferson County receives approximately 56 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Ground Cherry may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Ground Cherry will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Ground Cherry root diseases.

Jefferson County, FL (Zone 9a) Long season
257 days
Last Spring Frost March 9
257 growing days
First Fall Frost November 21

Jefferson County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.9

Drainage

Well Drained

Ground Cherry Planting Risk Windows

Early Start (70% safe) ✓ Fits season (112 days to spare)
Transplant: Mar 18 🍅 Harvest: May 27 – Jul 22
Recommended (50%) ✓ Fits season (117 days to spare)
Transplant: Mar 23 🍅 Harvest: Jun 1 – Jul 27
Safe Start (90%) ✓ Fits season (120 days to spare)
Transplant: Apr 10 🍅 Harvest: Jun 19 – Aug 14

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 Jefferson County

How your county's soil matches Ground Cherry's growing requirements.

Soil pH

Your soil pH (5.2–5.9) is more acidic than Ground Cherry prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Ground Cherry.

Organic Matter

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

How to Plant Ground Cherry

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Ground Cherry

4
successive plantings in your 257-day season

Sow every 7.4 weeks. Last sowing by Sep 02 to harvest before frost.

Ground Cherry 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 880 gal / 100 sq ft

Monthly Watering Guide for Ground Cherry

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

Month Ground Cherry Needs Rainfall You Supplement Action
Jan 3" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 4.3" 3.2" 1.1" 💧 Light watering
Apr 4.3" 2.4" 1.9" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 7.8" 0" ✅ Rainfall sufficient
Jul 4.3" 8.9" 0" ✅ Rainfall sufficient
Aug 4.3" 7.4" 0" ✅ Rainfall sufficient
Sep 4.3" 6.4" 0" ✅ Rainfall sufficient
Oct 4.3" 5" 0" ✅ Rainfall sufficient
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 2.7" 0" ❄️ Dormant

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

Ground Cherry 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.

Ground Cherry needs ~1,541 GDD — county provides 5,461 GDD Excellent fit

Ground Cherry Planting Timeline — Jefferson County, FL

Ground Cherry Planting Calendar

Activity When Date Range
Transplant Outdoors March 23 Mar 23 – Apr 6
Harvest June 1 Jun 1 – Jul 27

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

65–80 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

257 days in Jefferson County

Growing Tips for Ground Cherry in Jefferson County

Direct sow Ground Cherry outdoors after March 09 in Jefferson County when soil has warmed and frost danger has passed.

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

Common pests for Ground Cherry in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Let fruits fall to the ground naturally when ripe inside their husks. The husk turns brown and papery when the fruit is ready.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Ground Cherry in Jefferson County, FL?

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

What planting zone is Jefferson County, FL?

Jefferson County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 21.

When should I plant Ground Cherry in Jefferson County, ?

In Jefferson County, , plant Ground Cherry after the last frost (around March 9) and before the first frost (around November 21). Best results when soil holds above 50°F.

What growing zone is Jefferson County, for Ground Cherry?

Jefferson County sits in USDA Zone 9a. Ground Cherry grows reliably in zones 4a through 11b, so it's a good fit here.

Can Ground Cherry grow in Jefferson County's climate?

Yes — Ground Cherry grows well in Jefferson County's temperate climate. Jefferson County averages a 257-day frost-free season, with last frost around March 9 and first frost around November 21.

🌱

Your Jefferson County Garden Planner — Free

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

Sources & credits

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