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When to plant Begonias in Holmes County, FL

In Holmes County, Begonias is a single-season spring crop — there's no second fall window. Plant March 1–March 15 for an 70–90-day harvest, finishing well before the November 13 first frost.

When to Plant Begonias in Holmes County, FL

Holmes County, Florida Zone 8b June

June to-do list for Holmes County, Florida

June is a pivotal month for Holmes County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 15
Avg. first frost November 13
Soil temp (4") 83°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Harvest begonias as they ripen

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Before July arrives, get these ready
  • First harvests: 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.

Holmes County, Florida is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 164 feet, Holmes County receives approximately 57.8 inches of rainfall annually with predominantly sand soil. Summer highs average 93°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Begonias root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant
Holmes County, FL (Zone 8b) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13

Holmes County Soil Profile

Soil Type

Sand

Soil pH

5.2-6.2

Drainage

Well Drained

Begonias Planting Risk Windows

Early Start (70% safe) ✓ Fits season (34 days to spare)
Start indoors: Dec 26 Transplant: Feb 20 🌸 Bloom: May 1 – Oct 2
Recommended (50%) ✓ Fits season (33 days to spare)
Start indoors: Jan 4 Transplant: Mar 1 🌸 Bloom: May 10 – Oct 11
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Jan 31 Transplant: Mar 28 🌸 Bloom: Jun 6 – Nov 7

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 Holmes County

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

Soil pH

Your soil pH (5.2–6.2) overlaps with Begonias's range (5.5–6.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Begonias.

How to Plant Begonias

8"
Between Plants
10"
Between Rows

Succession Planting Begonias

4
successive plantings in your 243-day season

Sow every 8 weeks. Last sowing by Aug 15 to harvest before frost.

Begonias Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
Watering frequency Only during dry spells
Season total 3 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 3" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 4.3" 3.7" 0.6" 💧 Light watering
Apr 4.3" 2.9" 1.4" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 7.9" 0" ✅ Rainfall sufficient
Jul 4.3" 7.4" 0" ✅ Rainfall sufficient
Aug 4.3" 8.6" 0" ✅ Rainfall sufficient
Sep 4.3" 7.5" 0" ✅ Rainfall sufficient
Oct 4.3" 5.1" 0" ✅ Rainfall sufficient
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Holmes 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 ~1,580 GDD — county provides 4,799 GDD Excellent fit

Begonias Planting Timeline — Holmes County, FL

Begonias Planting Calendar

Activity When Date Range
Start Indoors January 4 Jan 4 – Jan 18
Transplant Outdoors March 1 Mar 1 – Mar 15
Bloom May 10 May 10 – Oct 11

· 8" apart · Rows 10" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

243 days in Holmes County

Growing Tips for Begonias in Holmes County

Direct sow Begonias outdoors after March 15 in Holmes County when soil has warmed and frost danger has passed.

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

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 Holmes County, FL?

Holmes County is in Zone 8b with an average last frost of March 15. Plan your Begonias planting based on this frost date — see the calendar above for exact timing.

What planting zone is Holmes County, FL?

Holmes County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 13.

When should I plant Begonias in Holmes County, FL?

In Holmes County, FL, plant Begonias after the last frost (around March 15) and before the first frost (around November 13). Best results when soil holds above 50°F.

What growing zone is Holmes County, FL for Begonias?

Holmes County sits in USDA Zone 8b. Begonias grows reliably in zones 2a through 11b, so it's a good fit here.

Can Begonias grow in Holmes County's climate?

Yes — Begonias grows well in Holmes County's temperate climate. Holmes County averages a 243-day frost-free season, with last frost around March 15 and first frost around November 13.

🌱

Your Holmes County Garden Planner — Free

A 22-page printable planner built for Holmes County (Zone 8b). 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 Holmes County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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