When to Plant Chives in St. Lucie County, FL
Top priorities for St. Lucie County, Florida gardeners in May
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in St. Lucie County, Florida.
-
Start harvesting chives
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Before June arrives, get these ready
- First harvests: chives
Chives are a hardy perennial herb with a mild onion flavor and attractive purple pom-pom flowers. They are one of the easiest herbs to grow and maintain.
St. Lucie County, Florida is in USDA Zone 10a. The average last spring frost is January 29 and the first fall frost is December 16, giving you a growing season of approximately 321 days.
At an elevation of 185 feet, St. Lucie County receives approximately 56.2 inches of rainfall annually with predominantly sand soil. Summer highs average 89°F, providing good warmth for Chives during the growing season. Sandy soil warms quickly in spring — great for early planting — but Chives will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chives root diseases.
St. Lucie County Soil Profile
Soil Type
Sand
Soil pH
4.8-5.8
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 St. Lucie County
How your county's soil matches Chives's growing requirements.
Soil pH
Your soil pH (4.8–5.8) is more acidic than Chives prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in St. Lucie County warms quickly in spring but drains fast. Chives will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Chives.
Organic Matter
Organic matter is low (1.3%). Add 2-3 inches of compost before planting Chives.
How to Plant Chives
Succession Planting Chives
Sow every 6.9 weeks. Last sowing by Sep 17 to harvest before frost.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Chives
Chives needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.
| Month | Chives Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 1.7" | 2.3" | 0" | ✅ Rainfall sufficient |
| Feb | 1.7" | 2.7" | 0" | ✅ Rainfall sufficient |
| Mar | 1.7" | 3.3" | 0" | ✅ Rainfall sufficient |
| Apr | 1.7" | 2.2" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 3.1" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 8.1" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 9" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 8.6" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 7.5" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 5" | 0" | ✅ Rainfall sufficient |
| Nov | 1.7" | 2.1" | 0" | ✅ Rainfall sufficient |
| Dec | 1.7" | 2.2" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Jan–Dec in St. Lucie County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Chives 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.
Chives Planting Timeline — St. Lucie County, FL
Chives Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | February 5 | Feb 5 – Feb 19 |
| Harvest | April 9 | Apr 9 – Jun 18 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Transplant Outdoors |
| March | — |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.4"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 10a
📆 Growing Season
321 days in St. Lucie County
Growing Tips for Chives in St. Lucie County
Direct sow Chives outdoors after January 29 in St. Lucie County when soil has warmed and frost danger has passed.
Sandy soil in St. Lucie County dries quickly — mulch Chives with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
Common pests for Chives in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
With 56" of annual rainfall in St. Lucie County, ensure good drainage for Chives — excess moisture can promote root rot and fungal diseases.
General growing tips
Start from seed or divisions in spring. Cut back to 2 inches after flowering to encourage fresh growth. Both the leaves and flowers are edible and delicious.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Chives in Other Locations
Frequently Asked Questions
When should I plant Chives in St. Lucie County, FL?
St. Lucie County is in Zone 10a with an average last frost of January 29. Plan your Chives planting based on this frost date — see the calendar above for exact timing.
What planting zone is St. Lucie County, FL?
St. Lucie County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 29 and first fall frost is December 16.
Your St. Lucie County Garden Planner — Free
A 24-page printable planner built for St. Lucie County (Zone 10a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.