hot high-desert crop
Date Palm
Phoenix dactylifera
An extreme-heat crop for the hottest sites, but a separate high-water production system rather than a water-conservation crop.
Data: preliminaryBiome fit
Hot high desert
Requires a long
Confidence: high
Hot/cold high desert
Summer heat may be sufficient
Confidence: high
Cold plateau
Winter minima are far below date-palm tolerance.
Confidence: high
Alpine / short season
Severe winter cold and inadequate summer heat are both disqualifying.
Confidence: high
Planning profile
| Lifecycle | Perennial |
|---|---|
| Harvested part | fruit |
| Productive winter minimum | 20°F |
| Routine summer maximum | 120°F |
| Annual irrigation | 7.8–8.3 acre-feet/acre |
| Mature yield | 7000–8200 lb/acre |
| Representative density | 50 plants/acre |
Planning values describe productive plantings, not absolute survival limits. Local evapotranspiration, soil, cultivar, plant age, rainfall, and management can materially change them.
Seasonal mature-plant water
| Season | Daily-equivalent gallons per plant |
|---|---|
| Spring | 160–200 |
| Summer | 210–250 |
| Fall | 170–210 |
Daily-equivalent demand is useful for system sizing; actual irrigation may be accumulated into less-frequent, deeper applications.
Potential products
- fresh dates
- dried dates
- date syrup
Drought and fire resilience
| Drought tolerance | Unknown The current research set documents very high productive water demand but does not establish a drought-tolerance rating. |
|---|---|
| Fire resistance | Unknown No fire-resistance finding is recorded in the current research set. |
Why it belongs
Dates are a compelling crop for sites with prolonged extreme heat, especially Barstow-like climates. Their water demand is several times that of most other crops in this catalog, however, so they should be evaluated as a distinct production system with a high economic hurdle per acre-foot.
Trial priorities
- Test early-ripening cultivars at the colder edge of suitable desert climates.
- Measure water productivity and revenue per acre-foot against other hot-system crops.
- Design and compare high-flow drip, bubbler, and microsprinkler systems.