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When to plant Snapdragon in Sumter County County,

Plant Snapdragon in Sumter County County from February 7 to February 28 in spring. Sumter County County sits in USDA Zone 8b, with last frost around March 21 and first frost on November 8. A second sowing from August 30 to September 13 extends the harvest into fall.

When to Plant Snapdragon in Sumter County, AL

Sumter County, Alabama Zone 8b June

Your June game plan for Sumter County, Alabama

June is a pivotal month for Sumter County, Alabama gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 21
Avg. first frost November 8
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. It's harvest week for snapdragon

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

A few tasks this June that'll pay off in July
  • First harvests: snapdragon

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Snapdragons (Antirrhinum majus) are classic cool-season annuals whose upright spikes of dragon-lipped flowers are among spring's most dramatic displays. Tolerating light frosts, they bloom from early spring until summer heat shuts them down — then often revive in fall. In zones 9-11 they are grown as fall-planted winter annuals and may re-seed to naturalize.

Sumter County, Alabama is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 8, giving you a growing season of approximately 232 days.

At an elevation of 335 feet, Sumter County receives approximately 56.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Snapdragon during the growing season. Clay soil retains moisture well for Snapdragon, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Snapdragon root diseases.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Sumter County, AL (Zone 8b) Long season
232 days
Last Spring Frost March 21
232 growing days
First Fall Frost November 8

Sumter County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Snapdragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (61 days to spare)
Start indoors: Dec 30 Transplant: Feb 17 🌸 Bloom: Apr 28 – Sep 1
Recommended (50%) ✓ Fits season (57 days to spare)
Start indoors: Jan 10 Transplant: Feb 28 🌸 Bloom: May 9 – Sep 12
Safe Start (90%) ✓ Fits season (56 days to spare)
Start indoors: Jan 29 Transplant: Mar 19 🌸 Bloom: May 28 – Oct 1

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 Sumter County

How your county's soil matches Snapdragon's growing requirements.

Soil pH

Your soil pH (5.6–6.2) is more acidic than Snapdragon prefers (6.2–7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Sumter County is excellent for Snapdragon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Snapdragon.

How to Plant Snapdragon

9"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Snapdragon

3
successive plantings in your 232-day season

Sow every 8 weeks. Last sowing by Jul 31 to harvest before frost.

For a dedicated fall crop, sow by Aug 30.

Snapdragon Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Snapdragon

Snapdragon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Snapdragon Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 5" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" ✅ Rainfall sufficient
Apr 4.3" 4.7" 0" ✅ Rainfall sufficient
May 4.3" 4.6" 0" ✅ Rainfall sufficient
Jun 4.3" 4.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.2" 0" ✅ Rainfall sufficient
Aug 4.3" 5.9" 0" ✅ Rainfall sufficient
Sep 4.3" 4" 0.3" 💧 Light watering
Oct 4.3" 3.7" 0.6" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Sumter County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Snapdragon 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.

Snapdragon needs ~1,742 GDD — county provides 4,756 GDD Excellent fit

Snapdragon Planting Timeline — Sumter County, AL

Snapdragon Planting Calendar

Activity When Date Range
Start Indoors January 10 Jan 10 – Jan 24
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow February 7 Feb 7 – Feb 28
Bloom May 9 May 9 – Sep 12
Fall Sowing August 30 Aug 30 – Sep 13

· 9" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Transplant Outdoors Direct Sow
March Transplant Outdoors
April
May Bloom
June Bloom
July Bloom
August Fall Sowing Bloom
September Fall Sowing Bloom
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6.2–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

232 days in Sumter County

Growing Tips for Snapdragon in Sumter County

Direct sow Snapdragon outdoors after March 21 in Sumter County when soil has warmed and frost danger has passed.

With Sumter County's clay soil (32% clay), work in 3-4 inches of compost before planting Snapdragon. Avoid tilling when soil is wet to prevent compaction.

General growing tips

Start indoors 10-12 weeks before last frost; seeds need light to germinate — press into moist medium and do not cover. Transplant after hardening off, even if light frosts remain. Pinch seedlings once to encourage branching. Deadhead to prolong blooming. In zones 8-11, sow in fall for a winter-to-spring show. Tall varieties (24-36") make excellent cut flowers.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Snapdragon in Sumter County, AL?

Sumter County is in Zone 8b with an average last frost of March 21. Plan your Snapdragon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sumter County, AL?

Sumter County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 8.

When should I plant Snapdragon in Sumter County County, ?

In Sumter County County, , plant Snapdragon after the last frost (around March 21) and before the first frost (around November 8). Best results when soil holds above 50°F.

What growing zone is Sumter County County, for Snapdragon?

Sumter County County sits in USDA Zone 8b. Snapdragon grows reliably in zones 2a through 11b, so it's a good fit here.

Can Snapdragon grow in Sumter County County's climate?

Yes — Snapdragon grows well in Sumter County County's temperate climate. Sumter County County averages a 232-day frost-free season, with last frost around March 21 and first frost around November 8.

🌱

Your Sumter County Garden Planner — Free

A 22-page printable planner built for Sumter 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Sumter County, AL. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.