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.
pineapples love the texrure of the robe and feel it makes them really pretty. Help pineapples get a say in government so they can officially where them all the time until they are being eaten. Pineapples and me are counting on you.
Depending on where the pineapples are coming from, the seasons can range throughout the year. The peak season for Hawaiian pineapples are April through June. Caribbean pineapples have two peak seasons of August through September and December through February.
There is no standard collective noun for a group of pineapples. Collective nouns are an informal part of language, any noun that suits the context can function as a collective noun; for example, a field of pineapples; a row of pineapples, a truckload of pineapple, etc.