Because the winter climate is not adequate for pineapples.
Romania
it is good 4 your health and i think it doesnt produce heat to your body
You can buy pineapples from a grocery store at any time of year, however pineapples only grow in hot climates.
Any good supermarket
There is no specific collective noun for pineapples, in which case a general collective noun that is suitable for the situation is used. Some examples are a field of pineapples, a truckload of pineapples, a crate of pineapples, etc.
Romania is not in any country. Romania is itself a country. It is in the continent of Europe.
Any Miss Romania in 1938.
Any dragons discovered in Romania !
Romania hasn't volcanoes.
Romania has no true deserts so has no desert land forms.
Any circus maximus in Romania.
Of course, the Carpathians - about 30 % of the Romania area.