Los Angeles in September: what to plant
Averaged over the last 5 years of daily records, September in Los Angeles runs 17.9–30.5°C with about 22 mm of rain across the month. Here is what that climate actually supports.
❄️ No sub-zero nights in September in the last 5 years — frost is not the limiting factor here.
Best crops to sow now
- 🌱 Microgreens Fastest about 6 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🍃 Mint about 21 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🌿 Basil about 22 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🧅 Chives about 23 days to harvest 🪴 Windowsill pot — sheltered from outdoor weather
- 🌽 Sweet Corn 88 about 64 days to harvest Recent mean 24.2°C — right in the sweet spot
- 🥒 Zucchini 80 about 46 days to harvest Recent mean 24.2°C — right in the sweet spot
- 🌻 Sunflower 80 about 62 days to harvest Recent mean 24.2°C — right in the sweet spot
- 🥒 Cucumber 80 about 70 days to harvest Recent mean 24.2°C — right in the sweet spot
Leave these for another month
- ⚪ Turnip — Recent mean 24.2°C is too hot (ideal 8–24°C)
- 🥬 Kale — Recent mean 24.2°C is too hot (ideal 6–24°C)
- 🫛 Peas — Recent mean 24.2°C is too hot (ideal 7–21°C)
Other months in Los Angeles
Temperature and rainfall are 5-year daily normals from the ERA5 reanalysis via Open-Meteo. Suitability is scored with the same degree-day model the game runs on — it is not a generic planting calendar.