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When to Plant Snapdragon in Moore County, TX

Moore County, Texas Zone 7a June

Your June game plan for Moore County, Texas

Your Moore County, Texas garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost April 16
Avg. first frost October 22
Soil temp (4") 73°F
Watering High
Pest pressure High
Daylight 14.4 hrs
  1. Start snapdragon indoors

    These need a head start before your last frost (April 16). Sow into cells now so you're ready to transplant in a few weeks.

  2. Bring in the snapdragon

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

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.

Moore County, Texas is in USDA Zone 7a. The average last spring frost is April 16 and the first fall frost is October 22, giving you a growing season of approximately 189 days.

At an elevation of 1,940 feet, Moore County receives approximately 58.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°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
Moore County, TX (Zone 7a) Moderate season
189 days
Last Spring Frost April 16
189 growing days
First Fall Frost October 22
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Moore County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.8

Drainage

Well Drained

Snapdragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (32 days to spare)
Start indoors: Feb 2 Transplant: Apr 13 🌸 Bloom: Jun 22 – Sep 14
Recommended (50%) ✓ Fits season (35 days to spare)
Start indoors: Feb 5 Transplant: Apr 16 🌸 Bloom: Jun 25 – Sep 17
Safe Start (90%) ✓ Fits season (33 days to spare)
Start indoors: Feb 21 Transplant: May 2 🌸 Bloom: Jul 11 – Oct 3

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 Moore County

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

Soil pH

Your soil pH (7.4–8.8) is more alkaline than Snapdragon prefers (6.2–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Moore 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 (0.9%). 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 189-day season

Sow every 8 weeks. Last sowing by Jul 14 to harvest before frost.

For a dedicated fall crop, sow by Aug 27.

Snapdragon Water Budget

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

Water stress score is 8/10 — 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 4.2" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 3.3" 0" ❄️ Dormant
Apr 4.3" 2.4" 1.9" 💧 Light watering
May 4.3" 1.3" 3" 🚿 Regular watering
Jun 4.3" 2" 2.3" 🚿 Regular watering
Jul 4.3" 9.7" 0" ✅ Rainfall sufficient
Aug 4.3" 11.3" 0" ✅ Rainfall sufficient
Sep 4.3" 8.3" 0" ✅ Rainfall sufficient
Oct 4.3" 5.4" 0" ✅ Rainfall sufficient
Nov 3.2" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Moore 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 ~1,806 GDD — county provides 4,016 GDD Excellent fit

Snapdragon Planting Timeline — Moore County, TX

Snapdragon Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors April 16 Apr 16 – Apr 30
Direct Sow March 19 Mar 19 – Apr 9
Bloom June 25 Jun 25 – Sep 17
Fall Sowing August 27 Aug 27 – Sep 10

· 9" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Direct Sow
April Transplant Outdoors Direct Sow
May
June Bloom
July Bloom
August Fall Sowing 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 7a

📆 Growing Season

189 days in Moore County

Growing Tips for Snapdragon in Moore County

Direct sow Snapdragon outdoors after April 16 in Moore County when soil has warmed and frost danger has passed.

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

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 Moore County, TX?

Moore County is in Zone 7a with an average last frost of April 16. Plan your Snapdragon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Moore County, TX?

Moore County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 16 and first fall frost is October 22.

🌱

Your Moore County Garden Planner — Free

A 22-page printable planner built for Moore County (Zone 7a). 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 Moore 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.