Local planting guide · Mountain West
zip 89115
Las Vegas is in USDA hardiness zone 9a, with average winter lows of 20°F to 25°F. The local growing season runs roughly 01/24 through 12/10 (~323 days). This zip falls within the Mountain West growing region.
- USDA zone
- 9a 20°F to 25°F
- Last spring frost
- 01/24
- First fall frost
- 12/10
- Growing season
- 323 days
- Compatible crops
- 61
- Growing region
- Mountain West
Right now in Las Vegas
Week 18 priorities
On the docket: transplant out after last frost · direct sow after last frost. See the full calendar →
Gardening in Las Vegas
Las Vegas gardening operates on a fundamentally different constraint than most of zone 9a. The last spring frost arrives on January 24, and the first fall frost doesn't occur until December 10, creating a 323-day growing season that spans nearly the entire calendar year. Winter cold is not the limiting factor here; summer heat is. The dominant challenge is protecting plants through months of sustained high-temperature stress combined with extremely low humidity and intense UV exposure. This environment rules out many temperate-zone stone fruits that thrive in milder parts of zone 9a. Jujubes, figs, pomegranates, and desert-adapted peach varieties excel in these conditions. Apple and pear selection must account for chill-hour requirements that Las Vegas' mild winters can struggle to meet. Water scarcity is a practical constraint that shapes every planting decision, making drought-tolerant rootstocks and irrigation infrastructure non-negotiable from the start.
Regional context · Mountain West
What the Mountain West brings to Las Vegas
High elevation, dry air, intense sun, big diurnal swings. Short cool growing season at altitude; longer hot one in valleys. Strong fruit production in irrigated river corridors.
Common challenges
Issues that most often defeat home gardeners in zone 9a, drawn from the broader USDA zone profile.
- ▸ Limited stone fruit options due to insufficient chill
- ▸ Hurricane and tropical storm exposure
- ▸ Citrus disease pressure
What defeats new gardeners in Las Vegas
Summer heat stress ranks first. Stone fruits like peaches can struggle under sustained heat, and heat-tolerant varieties still need afternoon shade and consistent irrigation. Many vegetable crops bred for temperate zones simply will not set fruit during peak summer months. Second, water availability. Las Vegas' municipal and agricultural water restrictions are tightening, and inefficient irrigation (overhead sprinklers, frequent shallow watering) wastes both water and money. Deep, infrequent watering is essential but requires planning and infrastructure. Third, early-spring damage from temperature swings and sun intensity. The intensity of January and February sun, combined with night temperatures dipping to 20-25°F, can cause bark cracking and bud damage on thin-barked species, even though overall winter cold stress is mild.
Crops that grow in Las Vegas
61 crops from our catalog match zone 9a, grouped by type.
Tree fruit
12 crops
zone 9a Apple
Malus domestica
zones 3a–9a
zone 9a Peach
Prunus persica
zones 5a–9a
zone 9a Japanese Plum
Prunus salicina
zones 5b–9a
zone 9a Fig
Ficus carica
zones 7a–10b
zone 9a American Persimmon
Diospyros virginiana
zones 4b–9a
zone 9a Asian Persimmon
Diospyros kaki
zones 7a–10a
zone 9a Pomegranate
Punica granatum
zones 7b–10a
zone 9a Jujube
Ziziphus jujuba
zones 6a–9b
Berries
5 crops
Nuts
4 crops
Vegetables
31 crops
zone 9a Tomato
Solanum lycopersicum
zones 3a–10b
zone 9a Sweet Pepper
Capsicum annuum
zones 4a–10b
zone 9a Hot Pepper
Capsicum species
zones 4a–10b
zone 9a Eggplant
Solanum melongena
zones 5a–10b
zone 9a Potato
Solanum tuberosum
zones 3a–9a
zone 9a Cabbage
Brassica oleracea var. capitata
zones 3a–9b
zone 9a Broccoli
Brassica oleracea var. italica
zones 3a–9a
zone 9a Cauliflower
Brassica oleracea var. botrytis
zones 3b–9a
Herbs
9 crops
zone 9a Basil
Ocimum basilicum
zones 4a–10b
zone 9a Parsley
Petroselinum crispum
zones 3b–9b
zone 9a Cilantro / Coriander
Coriandrum sativum
zones 3b–9b
zone 9a Dill
Anethum graveolens
zones 3b–9a
zone 9a Oregano
Origanum vulgare
zones 4a–9b
zone 9a Thyme
Thymus vulgaris
zones 4a–9a
zone 9a Rosemary
Salvia rosmarinus
zones 7a–10b
zone 9a Sage
Salvia officinalis
zones 4a–9a
Plan the year
Planting calendar for Las Vegas
Year-view of seed starting, transplanting, planting, pruning, fertilizing, harvest, and pest-watch windows tuned to Las Vegas's local frost dates.
Week ? · loading
This week in Las Vegas, NV (zone 9a)
Quiet week in Las Vegas, NV (zone 9a). this week is a good time to step back and plan ahead.
Nothing critical on the calendar this week.
303 bars · 61 crops
Calendar logic combines NOAA frost normals with crop-specific timing data. Local microclimate and weather always overrules the calendar; use this as a starting point.
Top pests for zone 9a
Ranked by how many crops in your zone they affect. Click through for IPM controls and signs to watch for.
Multiple species (Aphididae)
Small soft-bodied sap-sucking insects that reproduce explosively in spring. Excrete honeydew that supports sooty mold and attracts ants. Transmit viral diseases.
Odocoileus species
Whitetail and mule deer browse can devastate orchards and gardens, particularly in winter when food is scarce. Antler rub on young trunks kills saplings outright.
Meloidogyne species
Microscopic soil-dwelling worm that forms galls on roots, reducing vigor and yield.
Multiple species (Chrysomelidae)
Tiny black or bronze jumping beetles that put hundreds of small holes in seedling leaves. Most damaging on direct-seeded brassicas and young eggplant.
Tetranychus urticae
Tiny mite that feeds on leaf undersides, causing stippling and webbing during hot dry weather.
Sylvilagus and Lepus species
Cottontails and jackrabbits strip bark from young fruit trees in winter and graze tender garden vegetables year-round, especially seedlings.
Popillia japonica
Defoliating beetle introduced to North America in 1916. Skeletonizes leaves of many fruit trees, berry canes, and pecan.
Multiple species (Aleyrodidae)
Tiny white moth-like flying insects that feed on plant sap and excrete honeydew. Transmit numerous viral diseases including tomato yellow leaf curl virus.
Top diseases for zone 9a
Ranked by how many crops in your zone they affect. Click through for symptoms, controls, and resistant varieties.
Pseudoperonospora cubensis (cucurbits) and others
Water mold (oomycete, not a true fungus) that thrives in cool damp conditions. Spreads rapidly through cucurbit and brassica plantings on wind-borne spores.
Pythium and Rhizoctonia species
Soil-borne complex of water molds and fungi that kill seedlings before or shortly after emergence. The single most common cause of seed-starting failures.
Cucumber mosaic virus, Tobacco mosaic virus, and others
Family of plant viruses producing mottled yellow-and-green leaf patterns. Vectored primarily by aphids; some are seed-transmitted or spread by handling tools and tobacco products.
Sclerotium rolfsii
Soil-borne fungal disease most damaging in warm humid Southern conditions. White mycelial fans and small mustard-seed-sized sclerotia at the soil line are diagnostic.
Fusarium oxysporum
Soil-borne fungal disease that plugs vascular tissue and kills affected plants. Persists in soil for many years; impossible to eliminate once established.
Calcium deficiency physiological disorder
Not a true disease but a calcium-uptake disorder caused by inconsistent soil moisture during fruit development. The dominant cause of damaged first-fruit on home tomato plantings.
Verticillium dahliae
Soil-borne fungal disease similar to fusarium wilt but with broader host range and cooler temperature optimum. Persists in soil for 10+ years.
Plasmodiophora brassicae
Soil-borne disease causing characteristic distorted club-shaped roots on brassicas. Persists in soil for 10-20 years; the dominant brassica pathogen in acidic poorly-drained soils.
Companion planting suggestions
Beneficial pairings drawn from companion data, filtered to crops that grow in zone 9a.
- Peach + Garlic
Garlic planted around peach trees suppresses peach borer and provides general fungal-pressure reduction.
- Fig + Rosemary
Rosemary tolerates the dry sites figs prefer and provides aromatic pest deterrence.
- Jujube + Thyme
Thyme groundcover suits jujube's low-water profile and deters cabbage moth and aphid populations.
- Rabbiteye Blueberry + Thyme
Thyme tolerates the acidic soil and full sun rabbiteyes need and supports beneficial insect populations.
- Blackberry + Garlic
Garlic between blackberry rows reduces fungal pressure on canes during humid weather.
- Everbearing Strawberry + Thyme
Creeping thyme suppresses weeds between strawberry plants without competing for moisture or nutrients.
Soil types reference
Soil texture and pH decide what grows easily on your specific lot. Find the closest match below for crop recommendations and amendment guidance.
Practical tips for Las Vegas
First, prioritize naturally heat-and-drought-tolerant crops. Jujubes tolerate sustained heat exceptionally well and require minimal water once established. Figs, pomegranates, and desert-adapted persimmons are reliable choices. For apples and stone fruits, select varieties explicitly rated for hot, dry climates and pair them with heat-tolerant rootstocks. Second, install drip irrigation before planting. Consistent, deep watering during the first three growing seasons determines survival of newly planted trees. Once established (year three), water needs drop dramatically, but the establishment period requires commitment. Third, time dormancy-breaking pruning for mid-February, after the January 24 frost date, and protect newly pruned branches from intense early-spring sun by retaining some canopy shade for two to three weeks post-pruning.
Frequently asked questions
- What fruit trees grow most reliably in Las Vegas?
Jujubes, figs, pomegranates, and Asian persimmons are the most reliable. For stone fruits, peach and nectarine varieties bred for warm, dry climates perform well. Standard apples struggle with chill-hour requirements, but heat-tolerant, low-chill apple rootstocks are available.
- When is the last spring frost in Las Vegas?
The last spring frost typically occurs on January 24. However, late-January and early-February sun intensity is high enough to damage newly emergent buds. Delay pruning and new plantings until mid-February.
- Can I grow tomatoes and summer vegetables?
Yes, but timing is critical. Plant tomato transplants in late February to early March so they establish before peak summer heat. Many gardeners treat tomatoes as a spring and fall crop rather than a single summer season.
- How do I manage extreme summer conditions?
Afternoon shade cloth, consistent deep irrigation, and heat-tolerant variety selection are essential. Shallow, frequent watering encourages weak roots and salt accumulation in the soil. Mulch heavily (4 inches) to moderate soil temperature and retain moisture.
- Is water availability a concern for home fruit trees?
Yes. Municipal restrictions are tightening in Las Vegas. Drip irrigation is far more efficient than overhead sprinklers. Newly planted trees need deep watering for the first three years; mature trees become quite drought-tolerant, especially when mulched.
- Can I grow low-chill apples here?
Yes, but select varieties requiring fewer than 300 chill hours. 'Fuji', 'Gala', and 'Anna' are common choices, though 'Anna' is better suited to Las Vegas heat. Standard high-chill apples will break bud inconsistently and produce sporadically.
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Frost data: NOAA Climate Normals 1991-2020, station USW00053123. Local microclimates can shift these dates by a week or more.
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