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Made a map of the East Asian cities that most closely match the warmest & cold month mean temps of southern US cities. https://www.google.com/maps/d/edit?m...4118930694&z=5
The US cities (and towns) were chosen so that they were relatively evenly spaced throughout the southern US.
One person’s projection makes a difference how? If he’s projecting all those parts of Texas and southern Louisiana can grow it, there really shouldn’t be a problem with growing Passionfruit in North Florida and Tallahassee.
I have nothing to say specifically about growing passionfruit, but I agree that that map's projection isn't good.
1) It's based off of the outdated 2012 USDA zone map that was 1976-2005. Needless to say, we now have a new and appropriately updated one made last year.
2) The official climate site for Tallahassee, at the Tallahassee International Airport, is a cold hole because of disproportionate artificial deforestation. When you get out of this artificial cold hole, the cold extremes get notably warmer, and should easily match the parts of Texas and Louisiana in question.
I am not the first one to note this either.
Quote:
It is important to remember that in the wintertime the Tallahassee Airport is often quite a bit cooler than areas within the city limits.
The Tallahassee Regional Airport, on the city's southwest side, has a minimum temperature that is colder than minima of neighboring towns and other parts of Tallahassee when clear and calm conditions prevail over the area. The anomaly is described in detail with a series of comparison studies using daily minimum temperature data from nearby locations. This cold anomaly is statistically significant and is most common during the cold season. Its cause appears to be anomalous radiational cooling resulting from enhanced exposure of the ground to open sky, and local cooling rates are probably intensified by sandy soil conditions. Cold-air drainage does not appear to be an important factor.
Previous research has shown that TLH is not representative of the minimum temperatures observed at many locations in the city. These studies have examined the available data at the regional and mesoscales. The first study, Elsner et al. (1996), compared minimum temperatures at TLH to those of other first order sites and National Weather Service (NWS) cooperative sites around the Deep South between 1965 and 1988. They found that under ideal radiational cooling conditions TLH was 2° to 6°C colder than many nearby sites under the same synoptic conditions.
One person’s projection makes a difference how? If he’s projecting all those parts of Texas and southern Louisiana can grow it, there really shouldn’t be a problem with growing Passionfruit in North Florida and Tallahassee.
I have doubts those Texas and Louisiana locations can grow it too tbh.
The Atlantic coastal plain of South America that stretches from Buenos Aires, Argentina (latitude 35S) to Florianopolis, Brazil (latitude 28S) has a climate similar to the US southeast's coastal plain from Virginia Beach (36N) to Melbourne, FL (latitude 28N).
The trees, flora and fauna found in both areas is remarkably similar too. Both regions have relatively flat coastal plains with similar ocean water temperatures, and both are located along the southeast coast of their respective continents.
The Atlantic coastal plain of South America that stretches from Buenos Aires, Argentina (latitude 35S) to Florianopolis, Brazil (latitude 28S) has a climate similar to the US southeast's coastal plain from Virginia Beach (36N) to Melbourne, FL (latitude 28N).
It is not so far off, but Melbourne is considerably warmer Florianopolis. Melbourne is a borderline tropical climate with 6 months of the year over 25c, and half of the year is warmer than Florianopolis' warmest month. Florianopolis' summer is more similar to autumn of Melbourne
Yeah, I'd imagine that coconuts have stricter requirements for warm soil, warm average winter temperatures, and sunshine, being a lowland tropical tree.
On the other hand, the more tropical highland type plants might be able to handle cooler winters such as those of China's southern coast, so long as they are frost free (or at least free of hard frosts)? Dragonfruit might not even be the best example of such a plant.
Guava, cherimoya, longan/lychee and passionfruit might be better examples among fruit crops. Those can be grown in Florida, but maybe the northern limit of where they can be grown corresponds to higher winter means than the northern limit of where they can be grown in East Asia? Passionfruit (passiflora edulis) is grown in Portugal, since it can withstand prolonged cooler temperatures (40s-50s) as long as there's no hard frost. So it should be able to grow in Fujian and Guizhou provinces, but not in Tallahassee.
Did you mean Guangxi? Guizhou, outside of some valley areas, is not hugely productive for subtropical crop growth as compared to Guangxi. Lychee is primarily grown from Southern Fujian on south, hugging the coast. In the US, it and Longan are grown in a variety of areas - Florida, California, and Texas in the contiguous states + Hawaii are the biggest producers, but both can about as easily be grown along the Gulf Coast in states like Louisiana, Alabama, and Mississippi, up the South Atlantic coast to South Carolina, and in parts of the Desert SW.
This is also largely true of Dragonfruit, Passionfruit and Bananas. The states in which Bananas fruit (at least in most years) include parts of North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, Texas, California, Hawaii, and parts of Arizona. In China, outside the Sichuan Basin area, they are typically limited to growth in southern coastal China.
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