When to plant Shiso in Broward County, FL
In Broward County, plant Shiso in spring between January 8 and January 29, once soil temps hold above 50°F. Broward County's last frost averages January 1, so aim for a steady week of warm soil before planting. For a fall crop, sow between and — roughly 50–70 days before the first frost on December 31.
When to Plant Shiso in Broward County, FL
Top priorities for Broward County, Florida gardeners in July
A quick July briefing for Broward County, Florida gardeners — what's urgent, what's next, and what can wait.
-
Plan the fall garden
Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.
-
Keep heat-survivor crops productive
Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.
-
Watch for hurricane prep season
August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.
Shiso (perilla) is a fragrant Japanese herb with large, ruffled leaves in green or purple varieties. It has a unique flavor combining mint, basil, and anise.
Broward County, Florida is in USDA Zone 11a. 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 209 feet, Broward County receives approximately 60.7 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Shiso during the growing season. Sandy soil warms quickly in spring — great for early planting — but Shiso will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Shiso root diseases.
Broward County Soil Profile
Soil Type
Sand
Soil pH
5.1-6
Drainage
Well Drained
Soil Compatibility in Broward County
How your county's soil matches Shiso's growing requirements.
Soil pH
Your soil pH (5.1–6.0) overlaps with Shiso's range (5.5–7.0), though not a perfect match.
Soil Texture
Sandy soil in Broward County warms quickly in spring but drains fast. Shiso will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Shiso.
Organic Matter
Organic matter is low (1.5%). Add 2-3 inches of compost before planting Shiso.
How to Plant Shiso
Shiso Water Budget
Monthly Watering Guide for Shiso
Shiso needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Shiso Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 4.3" | 3" | 1.3" | 💧 Light watering |
| Feb | 4.3" | 2.8" | 1.5" | 💧 Light watering |
| Mar | 4.3" | 3.3" | 1" | 💧 Light watering |
| Apr | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| May | 4.3" | 4.1" | 0.2" | 💧 Light watering |
| Jun | 4.3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 10.1" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 9.1" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7.9" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.7" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Dec | 4.3" | 2.2" | 2.1" | 💧 Light watering |
Water needs are for active growing months only (Jan–Dec in Broward County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Shiso 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.
Shiso Planting Timeline — Broward County, FL
Shiso Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | November 20 | Nov 20 – Dec 4 |
| Transplant Outdoors | January 8 | Jan 8 – Jan 22 |
| Direct Sow | January 8 | Jan 8 – Jan 29 |
| Harvest | March 5 | Mar 5 – Apr 30 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Transplant Outdoors Direct Sow |
| February | — |
| March | Harvest |
| April | Harvest |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | Start Indoors |
| December | Start Indoors |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
50–70 days
🧪 Soil pH
Needs 5.5–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 11a
📆 Growing Season
365 days in Broward County
Growing Tips for Shiso in Broward County
Sandy soil in Broward County dries quickly — mulch Shiso with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
General growing tips
Direct sow after last frost or start indoors. Both green and red varieties are available. Pinch tips to encourage bushiness. Self-sows prolifically; deadhead to control.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Shiso in Other Locations
Frequently Asked Questions
When should I plant Shiso in Broward County, FL?
Broward County is in Zone 11a with an average last frost of January 1. Plan your Shiso planting based on this frost date — see the calendar above for exact timing.
What planting zone is Broward County, FL?
Broward County, Florida is in USDA Hardiness Zone 11a. The average last spring frost is January 1 and first fall frost is December 31.
When should I plant Shiso in Broward County, FL?
In Broward County, FL, plant Shiso 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 Broward County, FL for Shiso?
Broward County sits in USDA Zone 11a. Shiso grows reliably in zones 3a through 11b, so it's a good fit here.
Can Shiso grow in Broward County's climate?
Yes — Shiso grows well in Broward County's temperate climate. Broward County averages a 365-day frost-free season, with last frost around January 1 and first frost around December 31.
Your Broward County Garden Planner — Free
A 22-page printable planner built for Broward County (Zone 11a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.