When to plant Rosemary in Hamilton County, FL
In Hamilton County, Rosemary is a single-season spring crop — there's no second fall window. Plant March 11–March 25 for an 80–180-day harvest, finishing well before the November 26 first frost.
When to Plant Rosemary in Hamilton County, FL
Your July planting checklist for Hamilton County, Florida
A quick July briefing for Hamilton County, Florida gardeners — what's urgent, what's next, and what can wait.
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Basket week: rosemary
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Get ahead of August
- First harvests: rosemary
Rosemary is an aromatic evergreen shrub with needle-like leaves and a piney, citrus flavor. It is a Mediterranean herb that thrives in warm, dry conditions.
Hamilton County, Florida is in USDA Zone 9a. The average last spring frost is March 4 and the first fall frost is November 26, giving you a growing season of approximately 267 days.
At an elevation of 279 feet, Hamilton County receives approximately 61.2 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Rosemary during the growing season. Sandy soil warms quickly in spring — great for early planting — but Rosemary will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rosemary root diseases.
Hamilton County Soil Profile
Soil Type
Sand
Soil pH
5.2-5.7
Drainage
Well Drained
Rosemary 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 Hamilton County
How your county's soil matches Rosemary's growing requirements.
Soil pH
Your soil pH (5.2–5.7) is more acidic than Rosemary prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Hamilton County warms quickly in spring but drains fast. Rosemary will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Rosemary.
Organic Matter
Organic matter is low (1.4%). Add 2-3 inches of compost before planting Rosemary.
How to Plant Rosemary
Succession Planting Rosemary
Sow every 9.1 weeks. Last sowing by May 30 to harvest before frost.
Rosemary Water Budget
Monthly Watering Guide for Rosemary
Rosemary needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.
| Month | Rosemary Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 3.2" | 0" | ❄️ Dormant |
| Feb | — | 3.1" | 0" | ❄️ Dormant |
| Mar | 1.3" | 3.3" | 0" | ✅ Rainfall sufficient |
| Apr | 1.3" | 2.4" | 0" | ✅ Rainfall sufficient |
| May | 1.3" | 3.4" | 0" | ✅ Rainfall sufficient |
| Jun | 1.3" | 9.3" | 0" | ✅ Rainfall sufficient |
| Jul | 1.3" | 8.8" | 0" | ✅ Rainfall sufficient |
| Aug | 1.3" | 9.2" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 8.5" | 0" | ✅ Rainfall sufficient |
| Oct | 1.3" | 5" | 0" | ✅ Rainfall sufficient |
| Nov | 1.3" | 2.7" | 0" | ✅ Rainfall sufficient |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Hamilton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Rosemary 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.
Rosemary Planting Timeline — Hamilton County, FL
Rosemary Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 11 | Mar 11 – Mar 25 |
| Harvest | June 3 | Jun 3 – Oct 21 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | — |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.3"/week · Natural rainfall sufficient
📅 Days to Maturity
80–180 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
267 days in Hamilton County
Growing Tips for Rosemary in Hamilton County
Direct sow Rosemary outdoors after March 04 in Hamilton County when soil has warmed and frost danger has passed.
Sandy soil in Hamilton County dries quickly — mulch Rosemary with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With 61" of annual rainfall in Hamilton County, ensure good drainage for Rosemary — excess moisture can promote root rot and fungal diseases.
General growing tips
Grow in well-drained soil and avoid overwatering. In cold climates, grow in containers and bring indoors for winter. Propagate from stem cuttings for faster results than seed.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Rosemary in Other Locations
Frequently Asked Questions
When should I plant Rosemary in Hamilton County, FL?
Hamilton County is in Zone 9a with an average last frost of March 4. Plan your Rosemary planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hamilton County, FL?
Hamilton County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 4 and first fall frost is November 26.
When should I plant Rosemary in Hamilton County, FL?
In Hamilton County, FL, plant Rosemary after the last frost (around March 4) and before the first frost (around November 26). Best results when soil holds above 50°F.
What growing zone is Hamilton County, FL for Rosemary?
Hamilton County sits in USDA Zone 9a. Rosemary grows reliably in zones 7a through 10b, so it's a good fit here.
Can Rosemary grow in Hamilton County's climate?
Yes — Rosemary grows well in Hamilton County's temperate climate. Hamilton County averages a 267-day frost-free season, with last frost around March 4 and first frost around November 26.
Your Hamilton County Garden Planner — Free
A 22-page printable planner built for Hamilton 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.