GREEN×EXPO 2027 FAQ & Things to Know Before You Go: Tickets, Timing, What to Bring, Re-entry
GREEN×EXPO 2027 (the 2027 International Horticultural Exhibition) runs for 192 days, from Friday, March 19 to Sunday, September 26, 2027. The venue is the former Kamiseya Communications Facility site in Asahi and Seya wards, Yokohama — roughly 100 hectares of open ground, under the theme “Designing Future Society for Our Lives.” With an event this large, the questions pile up fast: When should I buy tickets? How long does it take to get around? What do I need to bring?
This guide gathers the questions worth settling before you go, grouped into four topics: tickets, the flow of the day, what you can bring (plus re-entry), and beating the crowds. This is an unofficial summary, and it keeps confirmed details clearly separate from the parts not yet announced, so you can use it as a pre-trip checklist.
Ticket and reservation questions (early-bird, season pass, date-time reservation)
The first thing most people ask about is tickets. Prices vary clearly by type.
| Ticket type | Adult | Youth (12–17) | Child (4–11) |
|---|---|---|---|
| Early-bird (advance) | ¥4,900 | ¥3,000 | ¥1,400 |
| Same-day | ¥5,500 | ¥3,300 | ¥1,500 |
| Season pass | ¥28,000 | ¥16,000 | ¥6,500 |
Children aged 3 and under are free. The early-bird saves an adult ¥600 over the same-day price — over ¥2,000 for a family of four — so if you’ve decided to go, locking in an advance ticket is the easy win.
Advance tickets go on sale on March 19, 2026, exactly one year before opening. For now, tickets carry no date restriction, so they aren’t tied to a specific day. If you plan to come back repeatedly, the season pass is an option that pays for itself after a handful of visits. There are also plans for a summer pass and an evening ticket for entry from late afternoon. For the break-even math on each type and how to choose, see the full ticket guide.
One caveat here. The tickets themselves are undated, but the date-time reservation system — booking the day and time you plan to arrive — is set to start later, and the exact procedure and start date have not been announced. At Expo 2025 in Osaka, date-time reservations were a pillar of crowd control, but Yokohama won’t necessarily work the same way, so we won’t state it as fact. Reservation details tend to update all at once once they go live, so always check the latest official guidance before you go.
The flow of the day and how long to allow (entry to exit)
“Will it take a whole day? Can I do it in half?” is another common question. The short answer: to enjoy the major pavilions and the floral highlights properly, allow half a day at minimum and ideally a full day.
The site is about 100 hectares — larger than 20 Tokyo Domes — so simply walking from one end to the other covers serious ground, and the highlights are spread out. The largest, the Japan Government Garden (about 2.5 hectares), built around the theme “The Japanese View of Nature,” includes an immersive theater that’s an experience in itself. Add the Theme Pavilion (Nature-based Solutions and the circular economy), the Horticulture Culture Pavilion, corporate pavilions from the likes of Obayashi, Mitsubishi, Kajima, and Daiwa House, and 70 participating countries, and seeing everything at a rush is a tall order.
Roughly, the day goes like this.
- Train to the nearest station — the four hubs are Seya, Mitsukyo, Tokaichiba, and Minami-machida Grandberry Park
- Shuttle bus to the venue — reservation only; there is no station right beside the grounds
- Entry at the gate — once date-time reservations begin, a check of that is likely to be added (procedure to be announced)
- Tour the pavilions and flower fields — start with what interests you most
- Shuttle back to a station — the return uses the same four stations
The exact gate locations, the finer security steps, and whether timed-entry passes apply inside are still to be announced. Since station access drives much of your total time, see the full access guide before you set off.
What can you bring, re-entry, and rainy days? (the basics of packing)
“Can I bring my own lunch?” “Can I leave and come back?” “Is it open in the rain?” — much of this has not been finalized officially. Restrictions on what you can bring, whether re-entry is allowed, and the details of restaurants and shops are all still to be announced, so we’ll set out rough guidance rather than stating anything as fact.
The basics of packing come down to heat and weather. The venue is built around flower fields and gardens, so you’ll spend a long time outdoors with little shade, and the season spans spring through the height of summer — so what you carry shifts with the time of year.
- Comfortable walking shoes — the single most important item across 100 hectares; bring broken-in sneakers
- Parasol, hat, sunscreen — close to essential in summer given the lack of shade
- A reusable bottle and water — carry plenty in midsummer to guard against heatstroke
- Rain gear — a rain jacket or folding umbrella for the June rainy season and sudden showers
- A power bank — reservations, maps, and photos drain a phone fast
For season-by-season detail on clothing and beating the heat, see the what to bring, clothing and heat guide. The July–September heat in particular makes a huge difference to comfort depending on how you prepare, so anyone going in summer should read it first.
On rain: a horticultural expo is the kind of outdoor event that generally runs whatever the weather, but how severe weather is handled and whether some displays are affected will need to wait for official guidance. Confirmed details — including whether re-entry is allowed — should be checked against the official announcements.
How not to get caught out (avoiding crowds, reservations, preparation)
Finally, some practical tips so the day runs smoothly.
When you go changes the experience enormously. The official day-by-day projections expect roughly 50,000–56,000 visitors on weekdays, about 79,000 on weekends and holidays, and up to about 105,000 at peak times such as Golden Week and the September holidays. The calmer windows are weekdays from Tuesday to Thursday, plus right after opening and toward the evening. The rainy season and the hottest stretch also tend to be quieter. For a detailed outlook, see the crowd forecast.
Both the shuttle and the car parks are reservation only — worth repeating as many times as it takes. You cannot simply turn up on the day and expect to park or board. Train plus the four-station shuttle is the basic route; if you drive, there are venue car parks (about 5,900 spaces to the north plus about 600 to the west) and park-and-ride for peak periods (Aeon Mall Yamato and others), but all of it assumes a booking. The procedure and start date are still to be announced, so check the full access guide for the latest method before you set off.
Your pre-trip checklist comes down to three things.
- Secure tickets early — early-bird beats same-day; tickets are undated, but date-time reservation is set to start later
- Decide how you’ll get there — which of the four stations to enter from, and shuttle versus car park
- Pack for the season — comfortable shoes year-round, heat protection in summer, plenty of rain gear in the rainy season
Which flowers are at their peak when you go also shapes the experience. As a general guide for the Kanto region, tulips peak from late March into April, nemophila in April, roses from mid-May into June, hydrangeas in June, sunflowers from late July into August, and cosmos in September. The venue’s planting plan awaits official release, but working backward from the flower you most want to see is a smart way to pick your date.
To start with the big picture and the highlights, see What is GREEN×EXPO 2027?; for choosing a ticket, the full ticket guide; and for getting there, the full access guide. Once you’re prepared, even a venue this large is easy to enjoy across a full day.
This is an unofficial summary. Always confirm the final details on tickets, reservations, and what you can bring against the official announcements.