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When to Plant Begonias in Nueces County, TX

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.

Nueces County, Texas is in USDA Zone 10a. The average last spring frost is February 10 and the first fall frost is December 10, giving you a growing season of approximately 303 days.

At an elevation of 1,586 feet, Nueces County receives approximately 53.3 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Begonias may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Begonias root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant
Nueces County, TX (Zone 10a) Year-round
303 days
Last Spring Frost February 10
303 growing days
First Fall Frost December 10

Nueces County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

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 1.6" 0" ❄️ Dormant
Feb 4.3" 1.6" 2.7" 🚿 Regular watering
Mar 4.3" 3.6" 0.7" 💧 Light watering
Apr 4.3" 5.4" 0" ✅ Rainfall sufficient
May 4.3" 7.5" 0" ✅ Rainfall sufficient
Jun 4.3" 8.9" 0" ✅ Rainfall sufficient
Jul 4.3" 7.2" 0" ✅ Rainfall sufficient
Aug 4.3" 5.9" 0" ✅ Rainfall sufficient
Sep 4.3" 5.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 4.3" 1.7" 2.6" 🚿 Regular watering
Dec 4.3" 1.3" 3" 🚿 Regular watering

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

Begonias Planting Timeline — Nueces County, TX

Begonias Planting Calendar

Activity When Date Range
Start Indoors December 2 Dec 2 – Dec 16
Transplant Outdoors December 30 Dec 30 – Jan 13
Bloom March 10 Mar 10 – Oct 6

· 10" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: N/A

🗺️ USDA Zone

Zone 10a

📆 Growing Season

303 days in Nueces County

Growing Tips for Nueces County

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 Nueces County, TX?

Nueces County is in Zone 10a with an average last frost of February 10. Plan your Begonias planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nueces County, TX?

Nueces County, Texas is in USDA Hardiness Zone 10a. The average last spring frost is February 10 and first fall frost is December 10.

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Your Nueces County Garden Planner — Free

A 22-page printable planner built for Nueces County (Zone 10a). 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 Nueces 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.