Chuseok flowers follow the harvest, not the florist
The occasion sits in autumn and carries two meanings at once: thanks for the harvest that has been gathered in, and remembrance of the family who came before. Both halves point at the same handful of flowers.
By the time this festival comes round, the market has already turned.
Summer stock is thin and expensive, while autumn stock is at its best. The arrangements that look right for this date are the ones built from what the season is actually giving.
What the season gives
Chrysanthemum runs this part of the year. It holds in a vase far longer than most of what stands beside it, takes the swing between a cold street and a heated room without dropping its head, and builds a dense mass from a small number of stems. The forms differ more than people expect, from sprays with many small heads to a single disbudded bloom the size of a fist. White carries the remembrance side of the day, while ochre, bronze and deep russet belong to the table. A florist working this week will reach for it before anything else, and the reason is practical rather than symbolic.
Around it go dahlia, aster, lisianthus and eustoma, branches carrying small fruit, wheat, seed heads and dried grasses.
Dried material earns its place here rather than acting as decoration. Wheat and seed heads say harvest without anybody having to explain the reference, and they cost nothing in vase life.
Colour runs warm: ochre, terracotta, cream, muted burgundy, soft yellow. Cold pink and blue sit badly against autumn foliage. They read as a different occasion altogether.
Two jobs in one day
A table piece is built low and wide, in a bowl or a lined box with soaked foam. Anything rising above the eye level of a seated guest gets moved to the sideboard before the meal is half over. Height is the first thing to control, and scent the second, because heavy perfume next to hot food spoils both.
Flowers for the family graves are a separate build. They travel, they stand without water changes, and they stay outdoors, so the list narrows to chrysanthemum, carnation, firm foliage and dried stems, led by white and kept free of gloss, foil and lacquered ribbon.
Arriving as a guest
Households are cooking all day, and a large hand-tied bunch arrives as one more task for whoever opens the door. A potted plant asks for nothing. There is no vase to find, no stem to trim, no water to change in the first hour.
It also outlasts the evening by months, which is part of the point on a day about continuity.
If you do send cut flowers, keep them modest. A water pouch on the stems lets the bunch sit in a hallway for an hour without coming to harm.
Ordering
The date moves. It follows the lunar calendar and falls in autumn, so it is worth checking the current year rather than assuming last year's date.
Demand compresses into a few days around it. White chrysanthemum goes first, and the stock left afterwards is whatever nobody chose. Order roughly a week ahead and confirm the palette in writing. If the recipient in Seoul needs the arrangement for a particular hour of the meal, give that hour when you place the order rather than on the morning itself.