Xi'an in May: what to plant
Over the last 5 years, May in Xi'an has run 16.1–28.0°C with about 72 mm of rain across the month. Here is what weather like that will carry to harvest.
Everything above is a five-year average. In the game it is this — the weather Xi'an is actually having, today.
Grow one in Xi'an's weather right now →❄️ No sub-zero nights in May in the last 5 years — frost is not the limiting factor here.
🗓️ This month sits inside the frost-free window. Average last spring frost around Mar 6, first autumn frost around Nov 18 — roughly 258 frost-free days. Sow tender crops after the last frost date and make sure they finish before the first.
☀️ About 8.2 h of sunshine a day this month. Within the month it warms by about 2.6°C from the first ten days to the last.
Sow this month — when would you harvest?
Assuming you sow in mid-May, then adding up the warmth Xi'an usually gets, one day at a time — which is why some of these run past the end of the month.
| Crop | Days | Harvest around |
|---|---|---|
| 🍅 Tomato | 77 | Jul 30 |
| 🥢 Green Beans | 40 | Jun 23 |
| 🫛 Edamame | 72 | Jul 25 |
| 🎃 Pumpkin | 70 | Jul 23 |
| 🏵️ Marigold | 35 | Jun 18 |
| 🌻 Sunflower | 56 | Jul 9 |
| 🌿 Amaranth greens | 38 | Jun 21 |
| 🌱 Microgreens | 6 | May 20 |
| 🧅 Onion | 51 | Jul 4 |
| 🌿 Garlic chives | 43 | Jun 26 |
| 🥬 Bok Choy | 25 | Jun 8 |
| 🥕 Carrot | 45 | Jun 28 |
Best crops to sow now
- 🍅 Tomato Ideal about 108 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🥢 Green Beans Ideal about 50 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🫛 Edamame Ideal about 100 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🎃 Pumpkin Ideal about 96 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🏵️ Marigold Ideal about 40 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🌻 Sunflower Ideal about 72 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🌿 Amaranth greens Ideal about 46 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🌱 Microgreens Ideal about 6 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🧅 Onion Good about 62 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🌿 Garlic chives Good about 50 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🥬 Bok Choy Good about 27 days to harvest Recent mean 22.1°C — right in the sweet spot
- 🥕 Carrot Good about 53 days to harvest Recent mean 22.1°C — right in the sweet spot
Leave these for another month
- 🌿 Coriander — 26 day(s) of heat stress
- 🫘 Broad bean — Recent mean 22.1°C is too hot (ideal 6–22°C)
- 🥕 Parsnip — Recent mean 22.1°C is too hot (ideal 6–22°C)
Other months in Xi'an
📍 Somewhere else? Look up your own city →
Temperature and rainfall come from Open-Meteo's historical observations for Xi'an, averaged day by day over the last 5 years. Whether a crop finishes in time is worked out from its own starting temperature and heat requirement — those numbers are listed on each crop page if you want to check them.