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When to Plant Snapdragon in Floyd County, TX

Floyd County, Texas Zone 7b June

Your June gardening checklist

Here's what deserves your attention in Floyd County, Texas this month. Everything below is tailored to Zone 7b and timed around your local frost dates.

Avg. last frost April 7
Avg. first frost November 2
Soil temp (4") 67°F
Watering High
Pest pressure High
Daylight 14.3 hrs
  1. Start snapdragon indoors

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  2. Pick snapdragon

    If you can't use it all right away, check the food-preservation section of your planner.

Coming up in July — start thinking about
  • 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.

Floyd County, Texas is in USDA Zone 7b. The average last spring frost is April 7 and the first fall frost is November 2, giving you a growing season of approximately 209 days.

At an elevation of 3,882 feet, Floyd County receives approximately 50.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 100°F, so Snapdragon may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Snapdragon will need more frequent watering and organic matter to retain nutrients. 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
Floyd County, TX (Zone 7b) Long season
209 days
Last Spring Frost April 7
209 growing days
First Fall Frost November 2
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Floyd County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Snapdragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (53 days to spare)
Start indoors: Jan 16 Transplant: Mar 20 🌸 Bloom: May 29 – Sep 4
Recommended (50%) ✓ Fits season (48 days to spare)
Start indoors: Jan 27 Transplant: Mar 31 🌸 Bloom: Jun 9 – Sep 15
Safe Start (90%) ✓ Fits season (58 days to spare)
Start indoors: Feb 4 Transplant: Apr 8 🌸 Bloom: Jun 17 – Sep 23

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 Floyd County

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

Soil pH

Your soil pH (7.4–8.6) is more alkaline than Snapdragon prefers (6.2–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Floyd County warms quickly in spring but drains fast. Snapdragon will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting Snapdragon.

How to Plant Snapdragon

9"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Snapdragon

3
successive plantings in your 209-day season

Sow every 8 weeks. Last sowing by Jul 25 to harvest before frost.

For a dedicated fall crop, sow by Sep 07.

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
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.2" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 3.1" 0" ❄️ Dormant
Apr 4.3" 1.6" 2.7" 🚿 Regular watering
May 4.3" 1" 3.3" 🚿 Regular watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 9" 0" ✅ Rainfall sufficient
Aug 4.3" 10.9" 0" ✅ Rainfall sufficient
Sep 4.3" 6.1" 0" ✅ Rainfall sufficient
Oct 4.3" 4.8" 0" ✅ Rainfall sufficient
Nov 4.3" 2.4" 1.9" 💧 Light watering
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Floyd 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 ~2,125 GDD — county provides 5,225 GDD Excellent fit

Snapdragon Planting Timeline — Floyd County, TX

Snapdragon Planting Calendar

Activity When Date Range
Start Indoors January 27 Jan 27 – Feb 10
Transplant Outdoors March 31 Mar 31 – Apr 14
Direct Sow March 10 Mar 10 – Mar 31
Bloom June 9 Jun 9 – Sep 15
Fall Sowing September 7 Sep 7 – Sep 21

· 9" apart · Rows 12" apart

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 7b

📆 Growing Season

209 days in Floyd County

Growing Tips for Snapdragon in Floyd County

Direct sow Snapdragon outdoors after April 07 in Floyd County when soil has warmed and frost danger has passed.

Sandy soil in Floyd County dries quickly — mulch Snapdragon with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 100°F in Floyd County, provide afternoon shade for Snapdragon and water deeply in the morning.

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 Floyd County, TX?

Floyd County is in Zone 7b with an average last frost of April 7. Plan your Snapdragon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Floyd County, TX?

Floyd County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is April 7 and first fall frost is November 2.

🌱

Your Floyd County Garden Planner — Free

A 22-page printable planner built for Floyd County (Zone 7b). 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 Floyd County, TX. 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.