Quote:
Originally Posted by easthome
Anything below freezing! I find the climate I live in too cold but New York gets even colder, the fact is that many sub-tropical plants will grow in NZ that will perish in NY.
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Well that doesn’t make NYC not subtropical. NZ is not because of lack of summer heat, NYC is close to continental but not yet and it has hot summers, so a subtropical though barely. NZ mild winters which are way milder and without much extremes helps it grow many subtropical and even tropical plants.
NYC is in the warm temperate ecoregion(one of the main ecoregions subtropical climates have) it has Ilex opaca a subtropical native, Loblolly pine a native to the humid subtropical, are native, and albizzia julibrissin a subtropical plant, and it is invasive to NYC just like in US south, and being hardiness zone 7b you can grow live oaks a subtropical indicator(hardy to USDA 7a) and even Spanish moss is hardy to zone 7! You can grow needle palms(hardy to zone 5) sabal minor(hardy to zone 6) saw palmetto(hardy to 6b), mazari palm(hardy to zone 6), windmill palms(hardy to 7a), European fan palm trees (hardy to 7b), sabal palmetto(hardy to 7b), pindo palm(hardy to 7b), Sago palm(cycad, hardy to 7b), Southern Magnolias(magnolia grandiflora, hardy to zone 6), and various types of crape Myrtles(a tropical flowering tree) hardy to zone 6. Also some citrus and citrus hybrids: Trifoliate oranges(hardy to zone 5), Ichang Papeda(hardy to zone 6), Jiouyuezao mandarin an legitimate and edible citrus (hardy to 7b, successfully in Long Island, NY they grew and gave fruit), the hybrids citrandarin, citrange (hardy to 6b or 7a, a d semi-edible), citrangequat(hardy to zone 7 edible), citrumelo(semi-edible hardy to zone 7), and Kabosu hardy to 7b. A banana tree type can be grown Musa Basjoo hardy to zone 5, and there are 2 types hardy to 8a that could potentially do well the 7b there. There are also various bamboos being grown there, and some are even invasive now!
Oh and the hot summers, prone ti get affected by tropical cyclones, the subtropical fish in the seas, strong effects of the Bermuda high, just everything. Even if it’s winters are too cold for your liking it doesn’t make it non subtropical, NYC is subtropical, period. It is true that it is not the best example it is leaning towards continental more than what a typical subtropical would be, somewhere like Central Alabama is pure type. The occasional snowstorms, 2 feet of snow yearly average, often frost in winter, ice storms, show that it is close to continental climates, but overall it’s not. Half of the year tropical air flows directly in NYC, combined with the winters not reaching continental climates yet makes it be a warm temperate climate which is another term that is used for subtropical climates. NYC has a subtropical weather overall.
Your opinion is valid to you, you have your own preferences of temperatures. However, that doesn’t affect how climate classification works and all the other facts. NYC winter’s are cold for your preference but that doesn’t make it subtropical, maybr you prefer places in subtropical places on the warmer winter side, and very mild oceanic, or maybe other climates. I respect opinions, but climate classification is not based on that. My opinion is that Köppen climate classification one of the most accurate right now, I have enough proof to believe that, even with the Cfa humid subtropical which has been very controversial Köppen for me does better. Trewartha imo sucks, Isles of Scilly can’t simply be subtropical, it is oceanic. Yeah I know it cam grow many subtropical and tropical plants since it’s in hardiness zone 10(in US zone 10 you are usually in warm climates, infact USDA 10b in FL is already tropical climate), but oceanic climate have same winter definitions as subtropical, eith mild winters such vegetation with thrive. Look at it this way, if NYC has Isles of Scilly summers it would be oceanic and if Isles of Scilly had NYC summers it would be subtropical and infact a warm one.