When to Plant Watermelon in Nevada
The ultimate summer treat. Watermelons need heat, space, and patience — but the payoff is pure joy.
The Short Answer
Nevada Frost Dates
Your planting dates depend on which part of Nevada you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Northern Nevada (Reno) | 6b, 7a | May 1 - May 20 | Sep 25 - Oct 15 |
| Las Vegas | 8b, 9a, 9b | Feb 10 - Mar 5 | Nov 10 - Dec 1 |
| Mountain Nevada | 4a, 4b, 5a, 5b | May 25 - Jun 15 | Aug 25 - Sep 15 |
Watermelon Planting Schedule for Nevada
Northern Nevada (Reno) (Zones 6b, 7a)
Average last frost: May 1 - May 20 · Average first frost: Sep 25 - Oct 15
Las Vegas (Zones 8b, 9a, 9b)
Average last frost: Feb 10 - Mar 5 · Average first frost: Nov 10 - Dec 1
Mountain Nevada (Zones 4a, 4b, 5a, 5b)
Average last frost: May 25 - Jun 15 · Average first frost: Aug 25 - Sep 15
Growing Watermelon in Nevada
Watermelon in Nevada's Climate
Your climate is watermelon paradise. Florida is the nation's #1 producer. Plant transplants as early as January in south Florida, February in central. Sandy soils drain well for watermelons but need compost. The biggest challenge isn't heat — it's fusarium wilt in soils with previous melon crops. Rotate locations on a 5-year cycle.
Soil Considerations for Nevada
Desert soils — alkaline, low organic matter. Extremely dry. Heavy amendment essential. Irrigation required. Make sure soil has warmed to at least 70°F before planting watermelon outside.
Nevada Climate & Growing Season
Arid climate. Extreme heat in summer (Las Vegas). Short season at altitude. Very low humidity. Water conservation critical. Watermelon cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing season length varies across Nevada: Northern Nevada (Reno) (6b, 7a) has a last frost around May 1 - May 20, while Mountain Nevada (4a, 4b, 5a, 5b) sees frost end around May 25 - Jun 15. This difference matters for watermelon — transplant timing shifts by several weeks across the state.
Growing Tips
Black plastic mulch warms soil faster. Check ripeness by looking for a yellow ground spot and listening for a hollow thump.
Companion Planting
Plant watermelon alongside these companions for better growth:
Keep watermelon away from:
The Bottom Line
Last reviewed: March 29, 2026