Birthday in Tokyo: an ikebana line or a full bouquet for the day
Before choosing flowers for a birthday in Tokyo, it helps to know that ikebana, Japan's own art of arranging flowers, avoids symmetry and may use only a few blooms, with the eye on stem, leaf and line. Its oldest school, Ikenobo, is first recorded in a Kyoto diary of 1462. A bouquet ordered here can follow either idea: a dense, circular shape built from several flowers, or a lighter one where a handful of large heads already carries a line of its own. Shape is the first choice, then colour, then the evening the flowers are meant for.
Line or fullness: shaping birthday flowers with ikebana in mind
The word ikebana combines ikeru, to place flowers or to live, with hana, flower, and the practice asks the eye to follow a stem and a line rather than scan a crowd of blooms arranged for symmetry. That is a useful way to think about a birthday bouquet before deciding how full it should be.
Rose, lily and gerbera work as mass flowers in floristry: packed together, they give a bouquet its weight and its centre. Eleven French Roses or eleven White and Pink Roses read as a full, round shape built that way, while Roses with Lisianthus only tells you that lisianthus stands alongside the rose, not how the two are arranged.
A lighter option leans on large-headed flowers instead. Hydrangea and lily carry enough presence on their own that a handful of stems already reads as a finished bouquet, closer to the line ikebana works with than to a dense sphere. Taken further, a bouquet of a single flower leaves nothing to compete with that one line.

Roses, lilies and gerberas, and the white flower to leave out
One flower is worth avoiding rather than choosing: a white chrysanthemum is a funeral flower in Japan and isn't given to someone alive, though a chrysanthemum in another colour sits comfortably inside a mixed bouquet. The birthday range itself runs on roses, lilies, gerberas and hydrangea rather than on chrysanthemums.
A French rose isn't a variety but a florist's technique: the outer petals are turned back by hand so the flower arrives already open, rather than waiting days to unfurl. That openness is one more way roses here set the mood, alongside the choice between white, pink and red. Gift-giving in Japan also steers around the numbers four and nine; the wider customs sit on the gift customs, hotels and sending from abroad page.

A Ginza table or a Shibuya rooftop: a basket and a cake for the evening
Ginza is Tokyo's shopping and restaurant district, while Shinjuku and Shibuya run more on offices and evening leisure; a birthday dinner can land in any of them, and nothing about the flowers depends on which.
A restaurant delivery works around the booking rather than the courier. JFLOO agrees the timing with the restaurant administrator and brings the flowers out at dessert or just before the toast, so the table stays clear through the meal. A basket suits that setting well, since it stands on its own, without a vase to find room for.
A bento cake is the other option for the table: a cake sized to fit one palm, sold in its own takeaway box with a short message piped onto the icing. The format began in South Korea and takes its name from the Japanese lunch box it resembles in size. A cream cake left out at room temperature is best eaten within two hours, so it helps to time it close to the moment it's cut. A card with a written message comes free with the order, and a cake or another extra is added to the bouquet at checkout rather than sent on its own.
Birthday flower delivery in Tokyo works the same way whatever the venue: the bouquet is made to order, and a photo goes to the sender before the courier leaves. Most orders reach the recipient the same day they're placed, and the exact timing for a given bouquet is shown on its own card. Full zones and timing sit on the how delivery works across the city page; an order placed from outside Japan, or one routed through a hotel, follows the same steps as any order placed locally.
A first choice is easiest to make by shape and place for a birthday in Tokyo. Roses cover the full, round end of the range, while a flower basket suits a restaurant or rooftop table. Gifts to go with the bouquet add a cake or a card once the flowers are settled.