Ontario is not usually described as romantic, which only means people have not looked at Euclid Avenue. When George Chaffey platted the Model Colony in 1882 he ran a boulevard north from the valley floor with a planted median wide enough to be a park in its own right, and it is still there, still shaded, still stretching several miles from the old downtown up toward the Upland line. Local lore includes the gravity mule car that once coasted down the median with the mule riding in a trailer behind it on the return trip. The Ontario Museum of History and Art occupies the old civic building at 225 South Euclid Avenue, Town Square is a few steps away, and Graber Olive House has been curing olives on East Fourth Street since 1894. This is a city with a walkable center and a long memory, and a bouquet delivered to a house on one of those streets does not need a special occasion attached to it.
Discretion is a bigger part of romantic delivery than of any other occasion, and Ontario's housing stock makes it a practical question rather than a sentimental one. A lot of the city lives in apartment courts and garden complexes along Holt Boulevard, Fourth Street, Mountain Avenue and Grove — buildings where a driver cannot reach a unit door without a callbox code or a leasing-office handoff, and where a leasing office means a third party knows about the delivery before the recipient does. Say what you want in the notes. If the surprise depends on nobody calling ahead, write "do not call the recipient" and the shop will work from the callbox or the office instead. If a phone call is the only way in, say "call is fine" and save everyone an hour. And think twice about workplace deliveries in this market specifically: an office desk is semi-private, but a warehouse floor or an air-cargo shift room is not, and plenty of recipients would rather not be handed a bouquet in front of forty people. When in doubt, send it home.
Ontario is also a long-distance romance city in a way its neighbors are not, because the airport is in town. Ontario International Airport on East Airport Drive puts a partner on a plane Thursday and back on Sunday, and the rooms that catch those weekends all sit within a couple of miles of the runway — the DoubleTree by Hilton on North Vineyard, the Ontario Airport Hotel and Conference Center on North Haven, the chain properties packed along Inland Empire Boulevard. For a counter drop, spell the booking name the way the reservation spells it and give the arrival date. A desk will happily keep flowers behind it for a late arrival; it will not go hunting for a guest it cannot find in the system. The commuting version is just as common: households here ride the Metrolink Riverside Line from the East Ontario platform or drive the 10 west into Los Angeles County before six in the morning, which is the argument for an evening delivery on a Friday rather than a mid-afternoon one on a Wednesday.