When to plant Snapdragon in Clark County, AR
Spring Snapdragon in Clark County goes in February 15–March 8, once nighttime temps stop dipping near freezing. A second sowing from August 31 to September 14 extends the harvest into fall.
When to Plant Snapdragon in Clark County, AR
Your June gardening checklist
Your Clark County, Arkansas garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.
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Pick snapdragon
If you can't use it all right away, check the food-preservation section of your planner.
Looking ahead to July
- First harvests: snapdragon
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.
Clark County, Arkansas is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 9, giving you a growing season of approximately 232 days.
At an elevation of 1,350 feet, Clark County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Snapdragon during the growing season.
Clark County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-6.7
Drainage
Well Drained
Snapdragon 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 Clark County
How your county's soil matches Snapdragon's growing requirements.
Soil pH
Your soil pH (5.7–6.7) overlaps with Snapdragon's range (6.2–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Clark County is excellent for Snapdragon — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Snapdragon.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Snapdragon.
How to Plant Snapdragon
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Snapdragon
Sow every 8 weeks. Last sowing by Aug 01 to harvest before frost.
For a dedicated fall crop, sow by Aug 31.
Snapdragon Water Budget
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 | — | 4.2" | 0" | ❄️ Dormant |
| Feb | — | 3.6" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Apr | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| May | 4.3" | 3.3" | 1" | 💧 Light watering |
| Jun | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Jul | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 4" | 0.3" | 💧 Light watering |
| Sep | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Oct | 4.3" | 2.5" | 1.8" | 💧 Light watering |
| Nov | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Dec | — | 3.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Clark 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 Planting Timeline — Clark County, AR
Snapdragon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 11 | Jan 11 – Jan 25 |
| Transplant Outdoors | March 8 | Mar 8 – Mar 22 |
| Direct Sow | February 15 | Feb 15 – Mar 8 |
| Bloom | May 17 | May 17 – Sep 6 |
| Fall Sowing | August 31 | Aug 31 – Sep 14 |
· 9" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Direct Sow |
| March | Transplant Outdoors Direct Sow |
| 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: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
232 days in Clark County
Growing Tips for Snapdragon in Clark County
Direct sow Snapdragon outdoors after March 22 in Clark County when soil has warmed and frost danger has passed.
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 →
Snapdragon in Other Locations
Frequently Asked Questions
When should I plant Snapdragon in Clark County, AR?
Clark County is in Zone 8a with an average last frost of March 22. Plan your Snapdragon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clark County, AR?
Clark County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 9.
When should I plant Snapdragon in Clark County, AR?
In Clark County, AR, plant Snapdragon after the last frost (around March 22) and before the first frost (around November 9). Best results when soil holds above 50°F.
What growing zone is Clark County, AR for Snapdragon?
Clark County sits in USDA Zone 8a. Snapdragon grows reliably in zones 2a through 11b, so it's a good fit here.
Can Snapdragon grow in Clark County's climate?
Yes — Snapdragon grows well in Clark County's temperate climate. Clark County averages a 232-day frost-free season, with last frost around March 22 and first frost around November 9.
Your Clark County Garden Planner — Free
A 22-page printable planner built for Clark 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.