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When to Plant Snapdragon in Eddy County, NM

Eddy County, New Mexico Zone 8a June

June to-do list for Eddy County, New Mexico

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 7
Avg. first frost November 2
Soil temp (4") 71°F
Watering Critical
Pest pressure High
Daylight 14.1 hrs
  1. Begin indoor sowing: snapdragon

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Bring in the snapdragon

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

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.

Eddy County, New Mexico is in USDA Zone 8a. 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 3,690 feet, Eddy County receives approximately 11.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92°F, providing good warmth for Snapdragon during the growing season. Sandy soil warms quickly in spring — great for early planting — but Snapdragon will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Snapdragon successfully. Mulch heavily to conserve soil moisture.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Eddy County, NM (Zone 8a) Long season
209 days
Last Spring Frost April 7
209 growing days
First Fall Frost November 2

Eddy County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.7-8.5

Drainage

Well Drained

Snapdragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (47 days to spare)
Start indoors: Jan 15 Transplant: Mar 12 🌸 Bloom: May 21 – Sep 10
Recommended (50%) ✓ Fits season (41 days to spare)
Start indoors: Jan 27 Transplant: Mar 24 🌸 Bloom: Jun 2 – Sep 22
Safe Start (90%) ✓ Fits season (44 days to spare)
Start indoors: Feb 9 Transplant: Apr 6 🌸 Bloom: Jun 15 – Oct 5

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 Eddy County

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

Soil pH

Your soil pH (6.7–8.5) is more alkaline than Snapdragon prefers (6.2–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Snapdragon.

Organic Matter

Organic matter is low (0.8%). Add 2-3 inches of compost before planting 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 209-day season

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

For a dedicated fall crop, sow by Aug 24.

Snapdragon Water Budget

Plant needs
1.0″/week
Rainfall provides
0.2″/week
You supply
1.3″/week
Watering frequency 2-3 times/week
Season total 2,372 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — 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 0.7" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 0.6" 0" ❄️ Dormant
Apr 4.3" 0.4" 3.9" 🚿 Regular watering
May 4.3" 0.3" 4" 🚿 Regular watering
Jun 4.3" 0.5" 3.8" 🚿 Regular watering
Jul 4.3" 2.1" 2.2" 🚿 Regular watering
Aug 4.3" 2.6" 1.7" 💧 Light watering
Sep 4.3" 1.6" 2.7" 🚿 Regular watering
Oct 4.3" 1" 3.3" 🚿 Regular watering
Nov 4.3" 0.6" 3.7" 🚿 Regular watering
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Eddy 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 ~1,615 GDD — county provides 3,971 GDD Excellent fit

Snapdragon Planting Timeline — Eddy County, NM

Snapdragon Planting Calendar

Activity When Date Range
Start Indoors January 27 Jan 27 – Feb 10
Transplant Outdoors March 24 Mar 24 – Apr 7
Direct Sow March 3 Mar 3 – Mar 24
Bloom June 2 Jun 2 – Sep 22
Fall Sowing August 24 Aug 24 – Sep 7

· 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 Fall Sowing Bloom
September Fall Sowing Bloom
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6.2–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

209 days in Eddy County

Growing Tips for Snapdragon in Eddy County

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

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

Eddy County receives only 12" of rain annually. Snapdragon needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 Eddy County, NM?

Eddy County is in Zone 8a 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 Eddy County, NM?

Eddy County, New Mexico is in USDA Hardiness Zone 8a. The average last spring frost is April 7 and first fall frost is November 2.

🌱

Your Eddy County Garden Planner — Free

A 22-page printable planner built for Eddy 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.

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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 Eddy County, NM. 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.