California crop estimate at just 65,000 tons
When California’s canning-olive crop comes in far below the year before, growers do not blame bad luck alone. Behind the swing are two Spanish table varieties, the olive’s stubborn alternate-bearing habit, and the brutal arithmetic of a single ill-timed frost.
California’s olive story is not really about oil — it is about the black and green canned olives sliced onto pizzas and packed in cans, and that trade rests on a very small cast of varieties. When a season’s crop lands far below the last, the headline number hides a more specific tale: which variety failed, why, and how much the weather in a few April days decided the whole year.
Two olives, two jobs
Most California canning olives are one of two Spanish imports. Sevillano is the giant — a big, firm, low-oil fruit sold as the ‘Queen’ or ‘Colossal’ olive, ideal for stuffing and for the impressive olive on a relish tray. Manzanillo is the smaller workhorse behind the everyday canned ‘ripe black’ olive — the one on your pizza — and it doubles usefully for oil. When a crop report says Sevillano did badly but Manzanillo held up, it is really saying the big showpiece olive suffered while the bread-and-butter olive survived.
Why the crop swings so hard
Two forces make olive tonnage lurch year to year. The first is built into the tree: olives are strongly alternate-bearing, so a heavy year is naturally followed by a light one as the tree recovers. The second is weather at the worst moment. A hard spring frost during or just after flowering, or hot dry winds that desiccate the young fruit, can wipe out a huge share of a crop in days. Stack a light ‘off’ year on top of a spring freeze and you get the kind of poor harvest that makes headlines.
The pressures behind the numbers
A weak crop lands on an industry already squeezed. California growers have long contended with the olive fruit fly, with cheaper imported olives, and with the labour cost of hand-harvesting a delicate table fruit that bruises easily. In lean years all of that bites harder. It is part of why the state’s table-olive acreage has been a tough business — and why the fruit that survives commands its price. For the buyer, it is a reminder that even a can of olives sits on top of real weather, real varieties and real risk.
| Sevillano | Manzanillo | |
|---|---|---|
| Size | Very large (‘Queen’/‘Colossal’) | Medium |
| Main use | Stuffing, showpiece table olive | Everyday canned ‘ripe black’ |
| Oil content | Low | Higher — doubles for oil |
| Role in the crop | The big, weather-sensitive showpiece | The dependable workhorse |
| Where | California, chiefly the Sacramento Valley |
|---|---|
| Main product | Canned table olives, not oil |
| Key varieties | Sevillano (large), Manzanillo (workhorse) |
| Crop swing causes | Alternate bearing + spring frost/wind |
| Standing pressures | Olive fruit fly, imports, harvest labour |
| Harvest | Autumn (roughly Sep-Nov) |
What to take from a bad-crop year
- California olives are mostly table fruit, dominated by two Spanish varieties.
- Sevillano is the giant stuffing olive; Manzanillo is the everyday canned one.
- Crops swing on alternate bearing plus spring frost and wind.
- Behind the tonnage sit real pressures: pests, imports and harvest labour.
California table olives: common questions
What kind of olives does California grow?
Mostly table olives for canning rather than oil — the black and green olives sold in cans and sliced onto pizza — led by the Spanish Sevillano and Manzanillo varieties.
What is the difference between Sevillano and Manzanillo?
Sevillano is a very large, low-oil ‘Queen’ olive used for stuffing and showpiece table fruit; Manzanillo is the smaller workhorse behind everyday canned olives and doubles for oil.
Why does the olive crop change so much year to year?
Olives are alternate-bearing — a heavy year is followed by a light one — and a spring frost or hot dry wind at flowering can destroy much of a crop in days.
What pressures does the California olive industry face?
The olive fruit fly, competition from cheaper imports, and the cost of hand-harvesting a delicate fruit that bruises easily.
Are canned black olives the same variety as pizza olives?
Largely yes — the everyday canned ‘ripe black’ olive on pizza is typically Manzanillo, ripened and processed to that familiar soft, dark form.
A bad California crop is rarely random. It is usually the big Sevillano — the giant stuffing olive — that suffers, while the smaller Manzanillo workhorse hangs on. Blame the olive’s on-and-off bearing habit and, above all, a spring frost hitting the flowers at the wrong moment. Add the fruit fly, cheap imports and the cost of picking a bruise-prone fruit by hand, and you see why table olives are a hard living. Even a humble can rides on real weather and real risk.
Drawn from California table-olive industry practice and the characteristics of the Sevillano and Manzanillo varieties.