Skip to content
FloraVista

City guide · Zone 9a

What to plant in San Antonio, Texas

A full-sun bed in San Antonio: Korean boxwood 'Wintergreen', Adam's needle yucca 'Color Guard', Daylily 'Stella de Oro', African iris, Lilyturf 'Big Blue'. Zone 9a, last frost around Feb 20.

Hot summers, alkaline soils and flash droughts. Texas natives and other heat-proven plants are the safe choice.

Preview: plant data is awaiting horticulturist review. A professional horticulturist hasn't reviewed our plant table yet. Lists still follow fixed rules for zone, sun, pets, deer and invasive status.

San Antonio, Texas at a glance

Hardiness zone (2023 USDA)
9a (ZIP 78205)
Typical last spring frost
Feb 20
Typical first fall frost
Dec 1
Spring planting window
late February to mid-April
Fall planting window
late October to mid-December
Annual rainfall (approx.)
32 in

Frost dates are typical metro values, not forecasts. Long, hot summers with drought and sudden downpours rule out many plants that the zone map says will survive. Our lists for San Antonio use the rules for Texas and the South-Central states.

Zone: USDA Plant Hardiness Zone Map, 2023 (USDA Agricultural Research Service; data by the PRISM Climate Group, Oregon State University). ZIP code to state data: GeoNames (geonames.org), CC BY 4.0.

A full-sun bed in San Antonio

6 or more hours of direct summer sun, 12 × 6 ft.

12 × 6 ft · Zone 9a · 6+ hours of sun · Modern

Kinds

5

Plants

24

Coverage

87%

Mulch

9 bags

Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 87% of the 72 sq ft bed when mature.

A part-shade bed in San Antonio

2 to 4 hours of direct summer sun, 12 × 6 ft.

12 × 6 ft · Zone 9a · 2–4 hours of sun · Classic

Kinds

5

Plants

41

Coverage

81%

Mulch

9 bags

Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 81% of the 72 sq ft bed when mature.

A shady bed in San Antonio

Under 2 hours of direct summer sun, 12 × 6 ft.

12 × 6 ft · Zone 9a · Under 2 hours of sun · Classic

Kinds

5

Plants

26

Coverage

89%

Mulch

9 bags

Mulch: 0.67 cu yd at 3 in deep (9 bags of 2 cu ft). Plants cover about 89% of the 72 sq ft bed when mature.

Guides for zone 9

Questions and answers

What hardiness zone is San Antonio, Texas in?
Central San Antonio (ZIP 78205) is in zone 9a on the 2023 USDA map: the coldest night of an average winter falls between 20°F and 25°F. Suburbs can be half a zone colder.
When is the last frost in San Antonio?
Typically around Feb 20 in spring and Dec 1 in fall. These are typical dates; any one year can be two weeks earlier or later.
When should I plant shrubs and perennials in San Antonio?
In spring, late February to mid-April; in fall, late October to mid-December. Fall planting gives roots a cool, moist season to settle before summer.
How many plants do I need for a 12 × 6 ft bed in San Antonio?
Our full-sun bed list for San Antonio uses 24 plants of 5 kinds, plus 9 bags of mulch.

How this page was made

This page was generated from FloraVista's plant table by fixed rules: the rules engine composed each list for the city's 2023 USDA zone, its region's summers and its state's invasive lists. The frost dates and rainfall are approximate metro values. No person or chat model chose these plants, and no named expert has reviewed this page.

Data status: the plant table is awaiting review by a horticulturist. Check each plant with a local nursery or extension office before you buy.

Sources

  • Missouri Botanical Garden Plant Finder, state extension services and the USDA PLANTS database (zones, size, sun, water, bloom, native range)
  • ASPCA toxic and non-toxic plant lists (dog and cat toxicity)
  • Rutgers NJAES and regional extension deer-resistance ratings
  • State noxious-weed and invasive-plant lists and the Invasive Plant Atlas of the US
  • Typical US garden-centre listings (pot size and price band)
  • USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture. Data by the PRISM Climate Group, Oregon State University.
  • ZIP code to state data: GeoNames (geonames.org), licensed under CC BY 4.0.

Generated . How FloraVista chooses plants