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In my book series, the region around the capital city of one of my planets has a very odd climate: while it has the year-round warm-to-hot weather of a tropical climate, it also has an exaggerated version of Mediterranean rainfall patterns: bone-dry summers and a winter monsoon season. I input the area's climate into a koppen climate calculator I found on the internet and it came out as Csa (hot-summer Mediterranean) but just barely: Climate Data For the City of Astras Since I could find no real easy analogue for this type of climate on Earth,what kinds of crops would people be able to grow in this type of area? What kinds of ornamental plants could one grow in the city itself?

Note: the planet's culture and technology is based on an amalgamation of Ancient Greece, Ancient Rome, and Byzantium so keep that in mind in regards to agricultural technology.

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  • $\begingroup$ I was baffled too, then I realised my mistake - the units! I'd really appreciate it if you could post another screenshot of that table not in American. 64F is 17 degrees C. 78f is 25 degrees C. $\endgroup$ – Ash Jan 3 at 18:23
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    $\begingroup$ this really depends on how well drained the land is, how advanced agricultural technology is, and the quality of the soil, also how much labor is available. long dry summers however will favor cereals as a staple. $\endgroup$ – John Jan 3 at 18:23
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    $\begingroup$ agree with @John. If you can catch the rain in a reservoir and use it for irrigation you have the Imperial Valley and you can grow lots of things. $\endgroup$ – Willk Jan 3 at 18:39
  • $\begingroup$ @Ash converted the table from Freedom Units to Metric. $\endgroup$ – The Weasel Sagas Jan 3 at 18:52
  • $\begingroup$ (1) What does the word "winter" mean in the context of a "tropical" climate? (2) How is this different from India? (3) Byzantium was a small and unimportant city on the shore of the Bosporus; you probably mean Constantinople. (Pet peeve: the name "Byzantine" empire was invented by a German historian long after that empire had fallen. While that empire was extant, its inhabitants called themselves Romans, the emperor called himself Roman emperor, both its friends and its enemies called it the Roman empire, and the capital was called Constantinople.) $\endgroup$ – AlexP Jan 3 at 19:58
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Lots will grow in that climate

Converting from "Freedom Units" to SI: You have average temperature min/max of 17 degrees Celsius in winter, 25 degrees Celsius in summer. That sounds familiar. It's the next city over from me:

After some googling, if we plot your average along the graph, it's about the middle of the average daytime max and average nightime min:

enter image description here

Your rainfall is about twice Perth's, but fits the same general shape of a winter peak. "14 inches" is 350mm of rain. So your land is equivalent to a plot of farmland near Perth which is irrigated over what rains by a factor of two.

enter image description here

A lot of things can grow in this climate. Sorting by month of planting:

  • January: beetroot, capsicum, celery, carrots, kale, eggplant
  • February: leeks, lettuce, melons, radish
  • March: beans (runner), broccoli, chillies, cauliflowers
  • April: broad beans, onions, spring onions
  • May: Brussels sprouts, parsnips, peas
  • June: potatoes, silver beets, spinach
  • July: swede, turnips, chives
  • August: asparagus, kohl rabi, Jerusalem artichoke
  • September: beans (dwarf), zucchini, melons
  • October: squash, peas, turnips
  • November: tomatoes, spring onions, beans (snake)
  • December: zucchini, radish, carrots

The most exported crops from that region are Wheat, Barley, Canola, and Lupins.

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