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When to plant Begonias in Apache County County,

In Apache County County, Begonias is a spring-only crop. Plant May 27–June 10 once soil hits 50°F.

When to Plant Begonias in Apache County, AZ

Apache County, Arizona Zone 6b June

Your June game plan for Apache County, Arizona

Each item below is timed to Apache County, Arizona's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 20
Avg. first frost October 10
Soil temp (4") 46°F
Watering Critical
Pest pressure High
Daylight 14.4 hrs
Coming up in July — start thinking about
  • Starting indoors: begonias

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Wax begonias (Begonia × semperflorens) are the workhorse shade bedding plant of American horticulture, offering continuous bloom from transplant to hard frost. Bronze or green-leaved varieties perform well from deep shade to full sun (in northern zones) and tolerate summer humidity better than most cool- season flowers. A staple of mass plantings, containers, and window boxes.

Apache County, Arizona is in USDA Zone 6b. The average last spring frost is May 20 and the first fall frost is October 10, giving you a growing season of approximately 143 days.

At an elevation of 7,720 feet, Apache County receives approximately 9.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92°F, providing good warmth for Begonias during the growing season. Sandy soil warms quickly in spring — great for early planting — but Begonias will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Begonias successfully. Mulch heavily to conserve soil moisture.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant
Apache County, AZ (Zone 6b) Short season
143 days
Last Spring Frost May 20
143 growing days
First Fall Frost October 10
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Apache County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.7

Drainage

Well Drained

Begonias Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 28 Transplant: May 16 🌸 Bloom: Jul 25 – Oct 31
Recommended (50%) ✗ May not fit
Start indoors: Mar 11 Transplant: May 27 🌸 Bloom: Aug 5 – Nov 11
Safe Start (90%) ✗ May not fit
Start indoors: Mar 30 Transplant: Jun 15 🌸 Bloom: Aug 24 – Nov 30

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 Apache County

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

Soil pH

Your soil pH (7.2–8.7) is more alkaline than Begonias prefers (5.5–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Begonias.

Organic Matter

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

How to Plant Begonias

8"
Between Plants
10"
Between Rows

Succession Planting Begonias

2
successive plantings in your 143-day season

Sow every 8 weeks. Last sowing by Jul 12 to harvest before frost.

Begonias Water Budget

Plant needs
1.0″/week
Rainfall provides
0.3″/week
You supply
1.2″/week
Watering frequency 2-3 times/week
Season total 1,564 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Begonias

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

Month Begonias Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.5" 0" ❄️ Dormant
Mar 0.6" 0" ❄️ Dormant
Apr 0.3" 0" ❄️ Dormant
May 4.3" 0.2" 4.1" 🚿 Regular watering
Jun 4.3" 0.3" 4" 🚿 Regular watering
Jul 4.3" 1.7" 2.6" 🚿 Regular watering
Aug 4.3" 2" 2.3" 🚿 Regular watering
Sep 4.3" 1.2" 3.1" 🚿 Regular watering
Oct 4.3" 0.8" 3.5" 🚿 Regular watering
Nov 0.6" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

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

Begonias 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.

Begonias needs ~1,520 GDD — county provides 2,717 GDD Excellent fit

Begonias Planting Timeline — Apache County, AZ

Begonias Planting Calendar

Activity When Date Range
Start Indoors March 11 Mar 11 – Mar 25
Transplant Outdoors May 27 May 27 – Jun 10
Bloom August 5 Aug 5 – Nov 11

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

143 days in Apache County

Growing Tips for Begonias in Apache County

Direct sow Begonias outdoors after May 20 in Apache County when soil has warmed and frost danger has passed.

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

Apache County receives only 9" of rain annually. Begonias needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 10–12 weeks before last frost — seed is dust-fine; surface-sow on moist mix under lights, do not cover. Bottom heat (70–75°F) speeds germination. Transplant after frost; begonias are not direct-sown in practice. Pinch seedlings once for branching. Keep soil evenly moist; avoid waterlogged conditions. Bronze-leaf types tolerate more sun; green- leaf types prefer shade to part-sun.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Begonias in Apache County, AZ?

Apache County is in Zone 6b with an average last frost of May 20. Plan your Begonias planting based on this frost date — see the calendar above for exact timing.

What planting zone is Apache County, AZ?

Apache County, Arizona is in USDA Hardiness Zone 6b. The average last spring frost is May 20 and first fall frost is October 10.

When should I plant Begonias in Apache County County, ?

In Apache County County, , plant Begonias after the last frost (around May 20) and before the first frost (around October 10). Best results when soil holds above 50°F.

What growing zone is Apache County County, for Begonias?

Apache County County sits in USDA Zone 6b. Begonias grows reliably in zones 2a through 11b, so it's a good fit here.

Can Begonias grow in Apache County County's climate?

Yes — Begonias grows well in Apache County County's temperate climate. Apache County County averages a 143-day frost-free season, with last frost around May 20 and first frost around October 10.

🌱

Your Apache County Garden Planner — Free

A 22-page printable planner built for Apache County (Zone 6b). 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 Apache County, AZ. 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.