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When to Plant Pac Choi in Miami-Dade County, FL

Pac choi (baby bok choy) is a compact variety of Chinese cabbage with tender leaves and crisp stems. It grows quickly and is ideal for containers and small spaces.

Miami-Dade County, Florida is in USDA Zone 10b. The average last spring frost is January 1 and the first fall frost is December 31, giving you a growing season of approximately 364 days.

At an elevation of 123 feet, Miami-Dade County receives approximately 58.7 inches of rainfall annually with predominantly sand soil. Summer highs average 90ยฐF, providing good warmth for Pac Choi during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Pac Choi will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Pac Choi root diseases.

Miami-Dade County, FL (Zone 10b) Year-round
364 days
Last Spring Frost January 1
364 growing days
First Fall Frost December 31

Miami-Dade County Soil Profile

Soil Type

Sand

Soil pH

5.1-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (113 days to spare)
Start indoors: Mar 18 Transplant: Apr 15 🍅 Harvest: May 27 – Jun 24
Recommended (50%) ✓ Fits season (113 days to spare)
Start indoors: Mar 18 Transplant: Apr 15 🍅 Harvest: May 27 – Jun 24
Safe Start (90%) ✓ Fits season (113 days to spare)
Start indoors: Mar 18 Transplant: Apr 15 🍅 Harvest: May 27 – Jun 24

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 Miami-Dade County

How your county's soil matches Pac Choi's growing requirements.

Soil pH

Your soil pH (5.1โ€“6.3) is more acidic than Pac Choi prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Miami-Dade County warms quickly in spring but drains fast. Pac Choi will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Pac Choi is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

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

How to Plant Pac Choi

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

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

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.7″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 4,140 gal / 100 sq ft

Monthly Watering Guide for Pac Choi

Pac Choi needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Pac Choi Needs Rainfall You Supplement Action
Jan 6.5" 2.9" 3.6" ๐Ÿšฟ Regular watering
Feb 6.5" 2.9" 3.6" ๐Ÿšฟ Regular watering
Mar 6.5" 3.4" 3.1" ๐Ÿ’ง Light watering
Apr 6.5" 2.5" 4" ๐Ÿšฟ Regular watering
May 6.5" 3.8" 2.7" ๐Ÿ’ง Light watering
Jun 6.5" 8.1" 0" โœ… Rainfall sufficient
Jul 6.5" 9.5" 0" โœ… Rainfall sufficient
Aug 6.5" 8.6" 0" โœ… Rainfall sufficient
Sep 6.5" 7.1" 0" โœ… Rainfall sufficient
Oct 6.5" 5" 1.5" ๐Ÿ’ง Light watering
Nov 6.5" 2.3" 4.2" ๐Ÿšฟ Regular watering
Dec 6.5" 2.7" 3.8" ๐Ÿšฟ Regular watering

Water needs are for active growing months only (Janโ€“Dec in Miami-Dade County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Pac Choi 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" โ€” every day above 50ยฐF 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.

Pac Choi needs ~831 GDD — county provides 6,387 GDD Excellent fit

Pac Choi Planting Timeline โ€” Miami-Dade County, FL

Pac Choi Planting Calendar

Activity When Date Range
Start Indoors December 4 Dec 4 โ€“ Dec 18
Transplant Outdoors January 1 Jan 1 โ€“ Jan 15
Direct Sow December 11 Dec 11 โ€“ Jan 1
Harvest February 12 Feb 12 โ€“ Mar 12
Fall Sowing November 5 Nov 5 โ€“ Nov 19

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

1.5"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

40โ€“55 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 10b

๐Ÿ“† Growing Season

364 days in Miami-Dade County

Growing Tips for Pac Choi in Miami-Dade County

Sandy soil in Miami-Dade County dries quickly โ€” mulch Pac Choi with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Your generous 365.0-day season in Miami-Dade County allows multiple plantings of Pac Choi. Sow every 20.0 days for continuous harvest.

Common pests for Pac Choi in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Grows best in cool weather. Space 6 inches apart for baby pac choi. Harvest whole plants or cut outer leaves as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pac Choi in Miami-Dade County, FL?

Miami-Dade County is in Zone 10b with an average last frost of January 1. Plan your Pac Choi planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Miami-Dade County, FL?

Miami-Dade County, Florida is in USDA Hardiness Zone 10b. The average last spring frost is January 1 and first fall frost is December 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Miami-Dade County gardeners in Zone 10b organize planting dates, track what's growing, and never miss a planting window.

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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 Miami-Dade County, FL. Local conditions may vary. Last updated: April 2026.