When to Plant Bok Choy in Putnam County, FL
Bok choy is a Chinese cabbage variety with crisp white stalks and dark green leaves. It is a fast-growing cool-season crop ideal for stir-fries and soups.
Putnam County, Florida is in USDA Zone 9a. The average last spring frost is February 9 and the first fall frost is December 2, giving you a growing season of approximately 296 days.
At an elevation of 278 feet, Putnam County receives approximately 57.5 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Bok Choy may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Bok Choy will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bok Choy root diseases.
Putnam County Soil Profile
Soil Type
Sand
Soil pH
4.9-6.2
Drainage
Well Drained
Plant Planting Risk Windows
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 Putnam County
How your county's soil matches Bok Choy's growing requirements.
Soil pH
Your soil pH (4.9–6.2) is more acidic than Bok Choy prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Putnam County warms quickly in spring but drains fast. Bok Choy will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Bok Choy is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.
Organic Matter
Organic matter is low (1.4%). Add 2-3 inches of compost before planting Bok Choy.
How to Plant Bok Choy
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Bok Choy
Sow every 4.6 weeks. Last sowing by Oct 03 to harvest before frost.
For a dedicated fall crop, sow by Oct 07.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Bok Choy
Bok Choy needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Bok Choy Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.4" | 0" | ❄️ Dormant |
| Feb | 3" | 2.6" | 0.4" | 💧 Light watering |
| Mar | 3" | 3.5" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 2.3" | 0.7" | 💧 Light watering |
| May | 3" | 3.3" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 7.9" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 9.4" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 7.4" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 2.2" | 0.8" | 💧 Light watering |
| Dec | 3" | 2.6" | 0.4" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Putnam County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Bok Choy 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.
Bok Choy Planting Timeline — Putnam County, FL
Bok Choy Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 12 | Jan 12 – Jan 26 |
| Transplant Outdoors | February 9 | Feb 9 – Feb 23 |
| Direct Sow | January 19 | Jan 19 – Feb 9 |
| Harvest | March 23 | Mar 23 – Apr 27 |
| Fall Sowing | October 7 | Oct 7 – Oct 21 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | Harvest |
| April | Harvest |
| May | — |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.7"/week · Only during dry spells
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
296 days in Putnam County
Growing Tips for Bok Choy in Putnam County
Direct sow Bok Choy outdoors after February 09 in Putnam County when soil has warmed and frost danger has passed.
Sandy soil in Putnam County dries quickly — mulch Bok Choy with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Your generous 297.0-day season in Putnam County allows multiple plantings of Bok Choy. Sow every 20.0 days for continuous harvest.
Common pests for Bok Choy 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 for best results. Keep soil consistently moist. Harvest whole heads or cut outer leaves for a cut-and-come-again approach.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Bok Choy in Other Locations
Frequently Asked Questions
When should I plant Bok Choy in Putnam County, FL?
Putnam County is in Zone 9a with an average last frost of February 9. Plan your Bok Choy planting based on this frost date — see the calendar above for exact timing.
What planting zone is Putnam County, FL?
Putnam County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 9 and first fall frost is December 2.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Putnam County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.