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When to Plant Impatiens in Mora County, NM

Mora County, New Mexico Zone 6a June

June in the garden — Mora County, New Mexico

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Mora County, New Mexico.

Avg. last frost May 22
Avg. first frost September 25
Soil temp (4") 51°F
Watering Critical
Pest pressure High
Daylight 14.4 hrs
Looking ahead to July
  • Starting indoors: impatiens

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Impatiens (Impatiens walleriana) are the go-to annual for shaded beds and containers. They produce a continuous carpet of flat-faced blooms from transplant until frost, needing little deadheading. Their preference for consistent moisture and part-shade makes them ideal under trees and along north-facing borders.

Mora County, New Mexico is in USDA Zone 6a. The average last spring frost is May 22 and the first fall frost is September 25, giving you a growing season of approximately 126 days.

At an elevation of 6,818 feet, Mora County receives approximately 16.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 87°F, providing good warmth for Impatiens during the growing season. Sandy soil warms quickly in spring — great for early planting — but Impatiens will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Impatiens successfully. Mulch heavily to conserve soil moisture.

Annual Blooms in Summer Pollinator-friendly
Mora County, NM (Zone 6a) Short season
126 days
Last Spring Frost May 22
126 growing days
First Fall Frost September 25

Mora County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.8-8.4

Drainage

Well Drained

Impatiens Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Mar 16 Transplant: May 18 🌸 Bloom: Jul 27 – Nov 2
Recommended (50%) ✗ May not fit
Start indoors: Mar 27 Transplant: May 29 🌸 Bloom: Aug 7 – Nov 13
Safe Start (90%) ✗ May not fit
Start indoors: Apr 26 Transplant: Jun 28 🌸 Bloom: Sep 6 – Dec 13

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 Mora County

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

Soil pH

Your soil pH (6.8–8.4) is more alkaline than Impatiens prefers (6.0–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Impatiens.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Impatiens.

How to Plant Impatiens

10"
Between Plants
12"
Between Rows

Succession Planting Impatiens

2
successive plantings in your 126-day season

Sow every 6.9 weeks. Last sowing by Jul 12 to harvest before frost.

Impatiens Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 991 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Impatiens

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

Month Impatiens Needs Rainfall You Supplement Action
Jan 1" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 0.9" 0" ❄️ Dormant
Apr 0.6" 0" ❄️ Dormant
May 4.3" 0.4" 3.9" 🚿 Regular watering
Jun 4.3" 0.6" 3.7" 🚿 Regular watering
Jul 4.3" 3" 1.3" 💧 Light watering
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 2" 2.3" 🚿 Regular watering
Oct 1.5" 0" ❄️ Dormant
Nov 1" 0" ❄️ Dormant
Dec 1.2" 0" ❄️ Dormant

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

Impatiens 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.

Impatiens needs ~1,029 GDD — county provides 1,921 GDD Excellent fit

Impatiens Planting Timeline — Mora County, NM

Impatiens Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 – Apr 10
Transplant Outdoors May 29 May 29 – Jun 12
Bloom August 7 Aug 7 – Nov 13

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

60–75 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

126 days in Mora County

Growing Tips for Impatiens in Mora County

Direct sow Impatiens outdoors after May 22 in Mora County when soil has warmed and frost danger has passed.

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

Mora County receives only 17" of rain annually. Impatiens needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 8–10 weeks before last frost at 70–75°F; germination requires light — do not cover seeds. Transplant after last frost once nights consistently exceed 50°F. Water regularly — wilting causes bud drop and they rarely fully recover the same flush. Watch for impatiens downy mildew (IDM); consider New Guinea impatiens as a resistant alternative in affected regions. Pinch tips at planting to encourage branching.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Impatiens in Mora County, NM?

Mora County is in Zone 6a with an average last frost of May 22. Plan your Impatiens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Mora County, NM?

Mora County, New Mexico is in USDA Hardiness Zone 6a. The average last spring frost is May 22 and first fall frost is September 25.

🌱

Your Mora County Garden Planner — Free

A 22-page printable planner built for Mora County (Zone 6a). 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 Mora 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.