When to plant Nasturtium in Douglas County, GA
Douglas County's climate puts the Nasturtium spring window between March 24 and April 14. most warm-season crops establish quickly once soil holds above 60°F.
When to Plant Nasturtium in Douglas County, GA
Your June gardening checklist
Welcome to June in Zone 8a. These are the moves that will have the biggest impact on your growing season.
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It's harvest week for nasturtium
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
A few tasks this June that'll pay off in July
- First harvests: nasturtium
Nasturtium (Tropaeolum majus) is a fast-growing annual with distinctive round, lily-pad leaves and bold trumpet-shaped blooms in warm oranges, reds, and yellows. Both the flowers and leaves are edible with a peppery watercress flavor. Planted near vegetables, nasturtiums act as a sacrifice trap-crop, luring aphids away from more valuable plants. They thrive in poor, dry soil — rich conditions produce lush foliage but few flowers.
Douglas County, Georgia is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 1, giving you a growing season of approximately 215 days.
At an elevation of 171 feet, Douglas County receives approximately 60.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Nasturtium during the growing season. Clay soil retains moisture well for Nasturtium, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Nasturtium root diseases.
Douglas County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.2
Drainage
Well Drained
Nasturtium 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 Douglas County
How your county's soil matches Nasturtium's growing requirements.
Soil pH
Your soil pH (5.5–6.2) is more acidic than Nasturtium prefers (6.0–8.0). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Douglas County is excellent for Nasturtium — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Nasturtium.
How to Plant Nasturtium
Succession Planting Nasturtium
Sow every 6.3 weeks. Last sowing by Aug 28 to harvest before frost.
Nasturtium Water Budget
Monthly Watering Guide for Nasturtium
Nasturtium 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 | Nasturtium Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5.2" | 0" | ❄️ Dormant |
| Feb | — | 4.4" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 5.1" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5.7" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 6.6" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 6.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.7" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.5" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Douglas County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Nasturtium 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.
Nasturtium Planting Timeline — Douglas County, GA
Nasturtium Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 3 | Mar 3 – Mar 17 |
| Transplant Outdoors | March 24 | Mar 24 – Apr 7 |
| Direct Sow | March 24 | Mar 24 – Apr 14 |
| Bloom | May 19 | May 19 – Oct 20 |
Plant 0.5" deep · 10" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| 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
55–65 days
🧪 Soil pH
Needs 6–8 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8a
📆 Growing Season
215 days in Douglas County
Growing Tips for Nasturtium in Douglas County
Direct sow Nasturtium outdoors after March 31 in Douglas County when soil has warmed and frost danger has passed.
With Douglas County's clay soil (26% clay), work in 3-4 inches of compost before planting Nasturtium. Avoid tilling when soil is wet to prevent compaction.
General growing tips
Direct-sow large seeds 1/2 inch deep after last frost; soak seeds overnight to speed germination (7-10 days). Nasturtiums dislike root disturbance so direct sowing is strongly preferred. Avoid fertilizing — poor soil brings the best bloom. Trailing types can cover banks and climb trellises; dwarf types suit containers. In hot climates (zones 9+) plant in fall for winter/spring bloom as plants struggle in peak summer heat.
Companion Planting
Good Companions
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Nasturtium in Other Locations
Frequently Asked Questions
When should I plant Nasturtium in Douglas County, GA?
Douglas County is in Zone 8a with an average last frost of March 31. Plan your Nasturtium planting based on this frost date — see the calendar above for exact timing.
What planting zone is Douglas County, GA?
Douglas County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 1.
When should I plant Nasturtium in Douglas County, GA?
In Douglas County, GA, plant Nasturtium after the last frost (around March 31) and before the first frost (around November 1). Best results when soil holds above 50°F.
What growing zone is Douglas County, GA for Nasturtium?
Douglas County sits in USDA Zone 8a. Nasturtium grows reliably in zones 2a through 11b, so it's a good fit here.
Can Nasturtium grow in Douglas County's climate?
Yes — Nasturtium grows well in Douglas County's temperate climate. Douglas County averages a 215-day frost-free season, with last frost around March 31 and first frost around November 1.
Your Douglas County Garden Planner — Free
A 22-page printable planner built for Douglas County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.