Texas · South
Round Rock, TX
Zone-aware planting reference for Round Rock. Population 115,997; USDA hardiness zone 9a; nearest curated zip code 78681.
- USDA zone
- 9a
- Population
- 115,997
- Last spring frost
- 02/20
- First fall frost
- 12/03
- Growing season
- 291 days
- Nearest zip
- 78681
Local timing baseline
Detailed guidance for this section is being prepared. Check back soon.
Crops suited to Round Rock
Crops whose USDA zone range includes zone 9a. 61 crops match.
Tree fruit
12 cropsBerries
5 cropsNuts
4 cropsVegetables
31 crops
zone 9a Arugula
Eruca vesicaria
zones 3b–9a
zone 9a Beet
Beta vulgaris
zones 3a–9a
zone 9a Broccoli
Brassica oleracea var. italica
zones 3a–9a
zone 9a Bush Bean
Phaseolus vulgaris
zones 3b–9a
zone 9a Cabbage
Brassica oleracea var. capitata
zones 3a–9b
zone 9a Carrot
Daucus carota subsp. sativus
zones 3a–9a
Herbs
9 cropsOther cities in Texas
Frequently asked questions
- What USDA zone is Round Rock, TX?
Round Rock sits in USDA hardiness zone 9a, based on the nearest zip code (78681).
- When are the average last and first frost dates in Round Rock?
Based on the nearest weather station, Round Rock averages a last spring frost around 02/20 and a first fall frost around 12/03, for a growing season of about 291 days.
- What crops grow well in Round Rock?
61 crops in the ZonePlant database have a recommended USDA zone range that includes zone 9a. Tree fruit, berries, and most common vegetables are well-suited; check each crop page for variety-level guidance.
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