The last kō of Usui, and the point where the sekki's whole arc — snow to rain, frozen soil to moist soil, hazy distances — resolves into the most visible sign yet: actual green appearing on branches and at ground level, plants that spent winter dormant now visibly, unmistakably starting again. 萌 (moe) means to sprout or bud, the same character that gives modern Japanese the word for a fresh, tender shoot.
This kō's window, roughly March 1st through 4th, sits right alongside 上巳の節句 (Jōshi no Sekku) on March 3rd — Hinamatsuri, the Doll Festival — so the calendar's own image of new growth breaking through arrives in the same few days as a festival explicitly built around clearing away the old year's misfortune to make room for a fresh one.
At its peak right around Hinamatsuri, where clam soup (hamaguri no ushiojiru) is the customary dish — clam shells only fit their own original matching half, making them a folk symbol of a well-matched marriage.
Still in good season, tart and refreshing.
Toward the end of its short season now, best gathered while still young.
Still tender and in good season.
Momo is why Hinamatsuri is also called 桃の節句 (Momo no Sekku, "Peach Blossom Festival") — some growers force-bloom branches specifically so they're ready in time for March 3rd, since a peach tree's natural bloom in most regions actually runs a little later than the festival date itself.
The popular name for Hinamatsuri (雛祭り), March 3rd, one of the five traditional sekku. Its roots trace to 上巳 (Jōshi), an old Chinese purification custom of washing away misfortune at a riverbank on the first mi (snake) day of the third month, which reached Japan by the Heian period and merged with a separate court pastime of doll-play (雛遊び, hiina asobi). The two combined into 流し雛 — dolls that absorbed a person's bad luck before being floated away on a river — and by the Edo period, as dolls grew more elaborate and valuable, the custom shifted from setting figures adrift toward displaying them at home instead, becoming the tiered hina-ningyō arrangement recognizable today.
萌 (moe) denotes new plant growth specifically — a sprout or bud — and the same character, read the same way, is also the root of the modern colloquial slang "moe," used for an intense, often idealized fondness for a character or thing; the connection between the two senses is debated, but both point to something small, fresh, and newly emerging.
Natural, unforced peach blossom typically opens weeks after Hinamatsuri in most of Japan — the tree most associated with the festival's name is, in its ordinary outdoor form, usually still bare on the day itself.
A simple clear clam broth with sake and a little salt — the clams themselves carry most of the flavor.
The change is gradual and easy to miss if you're only glancing rather than actually checking.
"Each tree, one by one, comes forward and announces its own name — the season's first buds."
Folk tradition holds that leaving them out too long past the festival is bad luck for a daughter's marriage prospects — worth packing them up within the following week or two.
Each clam's two shells only fit their own original other half — a small, visible bit of the marriage symbolism if you look for it while cooking.
Issa's trees are indistinguishable in winter — bare branches all reading the same, one silhouette much like another — until budding gives each one back its own particular shape and season and identity, the exact leaf and blossom that says which tree it's always actually been. Dormancy erases distinguishing detail; growth restores it. What part of your own identity has been sitting dormant and generic for a while, waiting on the right conditions to come forward and announce itself again?