U.S. leafy greens and vegetables — the lanes where cold-chain decides everything.
Salinas and Yuma year-round lettuce, brassicas, baby leaf, and field vegetables — moved by air on PMC and LD7 ULDs into the GCC and beyond. The tightest cold-chain category we ship.
The U.S. lettuce belt — year-round supply from two valleys.
Salinas Valley, California, is the world's most important leafy-greens production region — supplying the bulk of U.S. iceberg, romaine, and specialty lettuces from April through October. When the Salinas season closes for winter, production shifts south to the Yuma, Arizona, winter region — supplying November through March. Together these two regions cover the calendar year. The hand-off in October-November (and again in April) is the tightest moment in the program calendar; that's where pack-house coordination really shows.
For brassicas (broccoli, cauliflower, cabbage), the same two regions plus secondary California coastal production cover the year. Field vegetables (celery, carrots, onions, potatoes) have broader regional supply across multiple U.S. states with longer storage tolerance.
The GCC fruits and vegetables market reached approximately $16.75 billion in 2025 per Mordor Intelligence — projected to reach $21.17 billion by 2030 at 4.8% CAGR. Lettuces, brassicas, and vegetables sit at the core of that demand. Modern-trade retail and HORECA both drive the premium U.S. import segment, with chains expanding chilled-aisle space for fresh greens steadily through 2026.
When U.S. leafy and vegetables ship by region.
The leafy and vegetable calendar isn't really seasonal — it's regional. Year-round supply works as long as the program coordinates across the two main regions.
Pack styles by category.
| Iceberg lettuce — 24-count carton | WBL (with-branded-label) or natural cartons. 24 heads, ~45 lb (~20 kg). Iced and shipped on PMC ULDs. |
|---|---|
| Romaine — 24-count carton | Whole heads, ~24 lb. 12-count premium cartons also available. |
| Romaine hearts | 12 × 3-pack bagged cartons. Retail-pack standard. |
| Baby leaf — clamshell | 3 lb or 5 lb clamshells in master carton. Mix and single-variety options. |
| Broccoli — 14-count carton | Waxed cartons, 20 lb (~9 kg). Iced for transit. |
| Cauliflower — 12-count carton | Waxed 25 lb cartons. White, orange, or purple varieties. |
| Cabbage — 50 lb bag / 45 lb carton | Green or red. Long shelf-life, lower handling risk. |
| Carrots — 25 lb / 50 lb bag | Cello-packed (whole), peeled baby carrots in retail pack, or jumbo loose. |
| Onions — 50 lb mesh bag | Yellow, white, red, sweet. Multi-variety pallet builds for distribution. |
| Labeling | Retail bag printing, master-carton labels, destination-language compliance. |
Cold chain — the tightest band in fresh produce.
Leafy greens demand a colder, wetter, and more disciplined chain than any other produce category. Iceberg lettuce loaded at +5°C will arrive limp; baby leaf above +3°C will turn within 48 hours. We don't ship leafy programs to buyers who can't hold the chain.
| Lettuce / leafy — vacuum cool | Vacuum-cooled to +0 to +2°C within 1 hour of harvest. Non-negotiable for export. |
|---|---|
| Lettuce / leafy — transit | +0 to +2°C, 95–98% RH. Even 30 minutes above +5°C accumulates damage. |
| Broccoli / cauliflower — pre-cool | Hydro-cool or iced to 0°C. Top-iced shipping is standard for broccoli. |
| Brassicas — transit | 0 to +2°C, 90–95% RH. |
| Cabbage — transit | 0 to +2°C, 90–95% RH. Much more forgiving than other brassicas. |
| Field vegetables — transit | Onions, potatoes: storage-grade temperatures (+5 to +10°C). Carrots: +0 to +2°C. |
| Ethylene management | Brassicas and leafy greens are extremely ethylene-sensitive. Don't co-load with apples or pears. |
| Tender cut-off discipline | Trucking dispatched against airline acceptance window. Cool-room dwell at airport monitored. |
“Iceberg at +5°C looks fine to the receiver. Two days later it's leather. The break didn't happen on arrival — it happened in the gap between vacuum cool and tender.”
Where we ship U.S. leafy and vegetables.
Leafy and vegetable lanes are restricted to destinations with strong receiving cool-room capability. Below is the active lane book.
How USME runs a leafy / vegetable program.
Starting a leafy or vegetable program.
- Lettuce / leafy: weekly cadence required; buyer cool-room confirmed.
- Brassicas: weekly to bi-weekly cadence; iced shipping for broccoli.
- Field vegetables: longer cadence works; lower handling risk.
- Mixed-pallet programs: balanced cool-down windows across categories.
- Pack style and labeling locked in writing before season.
- Salinas ↔ Yuma transition coordinated to prevent supply blink.
Frequently asked questions
Which U.S. leafy and vegetable categories does USME ship?
Leafy: iceberg lettuce, romaine, butter, red and green leaf, baby spring mix, baby spinach, baby kale, arugula. Brassicas: broccoli, cauliflower (white, orange, purple), green and red cabbage, Brussels sprouts, kale. Field vegetables: celery, carrots, onions (white, yellow, red, sweet), potatoes, sweet corn. Salinas Valley (California) and Yuma (Arizona) winter region are the primary origins.
When is the U.S. lettuce and leafy greens export season?
Year-round. Salinas Valley supplies April through October; Yuma takes over from November through March as the winter growing region. The seasonal hand-off is the tightest two-week window in the calendar — and a good supplier coordinates capacity across both regions so the program doesn't blink.
Why is the cold chain so demanding for leafy greens?
Lettuces, leafy greens, and brassicas are some of the most perishable items in the produce category. Target transit temperature is +0 to +2°C with very high humidity (95–98% RH). Even a few hours above +5°C cause wilting, browning, and decay. The lane has to be short and the handler discipline has to be tight — which is why leafy greens are an air-cargo category almost exclusively.
What pack styles does USME use for U.S. leafy and vegetable exports?
Lettuce: 24-count cartons (iceberg), 12 or 24-count romaine cartons. Baby leaf: 3 lb clamshells in cartons. Broccoli/cauliflower: 14-count waxed cartons. Cabbage: 50 lb bagged or volume-fill cartons. Carrots: 25 lb or 50 lb bagged. Onions: 25 lb or 50 lb bagged. Modern-trade chains often require retail-ready packs (clamshells, bags) with private-label printing.
What is the GCC market like for U.S. leafy greens and vegetables?
The GCC fruits and vegetables market was estimated at $16.75 billion in 2025 and is forecast to grow to $21.17 billion by 2030, at a 4.8% CAGR per Mordor Intelligence. Lettuce, leafy greens, and brassicas are core demand categories driven by modern-trade retail (Carrefour, Lulu, Spinneys, Panda, Tamimi) and the HORECA segment serving the hotel and tourism economies. Demand is increasingly for premium specialty greens — baby leaf mixes, organic, hydroponic.
Can USME run a weekly lettuce program into the GCC?
Yes — for the right buyer with the right cold-chain capability on the receiving end. Weekly air-cargo lettuce programs into Dubai, Abu Dhabi, Riyadh, and Doha are operational for modern-trade chains and high-end HORECA buyers. The buyer needs strong cool-room infrastructure on arrival; without it, the shelf life on receiving day is too short to make the program economics work.
How does USME handle leafy greens vs vegetable claim risk?
Leafy greens have the tightest claim window — quality issues are visible within 24-48 hours of arrival. We pre-screen vendors on icing and pre-cooling discipline. Field vegetables (cabbage, carrots, onions, potatoes) are much lower risk and rarely generate claims. On either category, the cold-chain record is the basis for any settlement — no inflation expected.
Why aren't leafy greens grown locally in the GCC enough to replace imports?
Hydroponic and vertical-farm operations are growing rapidly in the GCC — including a notable July 2024 $680M Plenty / Mawarid joint venture in the UAE. But local production is still scale-limited and concentrated in baby leaf and specialty greens. Bulk iceberg, romaine, brassicas, and field vegetables remain primarily import-dependent for the next decade. U.S. supply competes on quality and reliability against Spain, Egypt, Jordan, and Kenya.