When to plant Vinca (Annual) in Baldwin County County,
Plant Vinca (Annual) in Baldwin County County during the brief March 9–March 23 window. With 230 frost-free days, fall plantings can't mature before November 8.
When to Plant Vinca (Annual) in Baldwin County, GA
Baldwin County, Georgia gardeners: here's your June plan
Here's what deserves your attention in Baldwin County, Georgia this month. Everything below is tailored to Zone 8b and timed around your local frost dates.
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Start vinca (annual) under lights
Label every cell. You will absolutely forget which is which otherwise.
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Pick vinca (annual)
If you can't use it all right away, check the food-preservation section of your planner.
Looking ahead to July
- First harvests: vinca (annual)
Annual vinca (Catharanthus roseus), also called Madagascar periwinkle, is one of the most heat- and drought-tolerant bedding plants available. Glossy foliage stays attractive all season while cheerful pinwheel blooms continue without deadheading. A top performer in hot, humid Southern summers where impatiens and begonias struggle. Self-cleaning; requires little maintenance once established.
Baldwin County, Georgia is in USDA Zone 8b. The average last spring frost is March 23 and the first fall frost is November 8, giving you a growing season of approximately 230 days.
At an elevation of 421 feet, Baldwin County receives approximately 59 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Vinca (Annual) during the growing season. Clay soil retains moisture well for Vinca (Annual), but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Vinca (Annual) root diseases.
Baldwin County Soil Profile
Soil Type
Clay Loam
Soil pH
5.4-6.6
Drainage
Well Drained
Vinca (Annual) 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 Baldwin County
How your county's soil matches Vinca (Annual)'s growing requirements.
Soil pH
Your soil pH (5.4–6.6) overlaps with Vinca (Annual)'s range (6.0–7.0), though not a perfect match.
Soil Texture
The clay loam soil in Baldwin County is excellent for Vinca (Annual) — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Vinca (Annual) prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Vinca (Annual).
How to Plant Vinca (Annual)
Succession Planting Vinca (Annual)
Sow every 8 weeks. Last sowing by Aug 10 to harvest before frost.
Vinca (Annual) Water Budget
Monthly Watering Guide for Vinca (Annual)
Vinca (Annual) needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Vinca (Annual) Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.7" | 0" | ❄️ Dormant |
| Feb | — | 4.7" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.5" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 5.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.9" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 5.7" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Baldwin County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Vinca (Annual) 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.
Vinca (Annual) Planting Timeline — Baldwin County, GA
Vinca (Annual) Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 12 | Jan 12 – Jan 26 |
| Transplant Outdoors | March 9 | Mar 9 – Mar 23 |
| Bloom | May 18 | May 18 – Oct 19 |
Plant 0.1" deep · 10" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | — |
| March | Transplant Outdoors |
| April | — |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
70–90 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
230 days in Baldwin County
Growing Tips for Vinca (Annual) in Baldwin County
Direct sow Vinca (Annual) outdoors after March 23 in Baldwin County when soil has warmed and frost danger has passed.
With Baldwin County's clay soil (30% clay), work in 3-4 inches of compost before planting Vinca (Annual). Avoid tilling when soil is wet to prevent compaction.
General growing tips
Start seeds indoors 10–12 weeks before last frost — germination requires warm soil (75–80°F) and darkness. Do not cover seeds deeply; they need just a light dusting. Direct sowing is rarely practiced due to slow seedling establishment. Transplant after soil warms and frost danger has passed. Excellent drought tolerance once established; avoid overwatering. Performs best in well-drained beds or containers in full sun.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Vinca (Annual) in Other Locations
Frequently Asked Questions
When should I plant Vinca (Annual) in Baldwin County, GA?
Baldwin County is in Zone 8b with an average last frost of March 23. Plan your Vinca (Annual) planting based on this frost date — see the calendar above for exact timing.
What planting zone is Baldwin County, GA?
Baldwin County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 23 and first fall frost is November 8.
When should I plant Vinca (Annual) in Baldwin County County, ?
In Baldwin County County, , plant Vinca (Annual) after the last frost (around March 23) and before the first frost (around November 8). Best results when soil holds above 50°F.
What growing zone is Baldwin County County, for Vinca (Annual)?
Baldwin County County sits in USDA Zone 8b. Vinca (Annual) grows reliably in zones 3a through 11b, so it's a good fit here.
Can Vinca (Annual) grow in Baldwin County County's climate?
Yes — Vinca (Annual) grows well in Baldwin County County's temperate climate. Baldwin County County averages a 230-day frost-free season, with last frost around March 23 and first frost around November 8.
Your Baldwin County Garden Planner — Free
A 22-page printable planner built for Baldwin County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.