four to a court

Hello, good evening.

I'm translating a tale from English to Spanish, and I faced a phrase I don't quite understand, if someone would be so kind to help me, I'd be very thankful. The phrase is "four to a court", and the context is as follows:

From my family apartament you could smell the pear trees that have been planted years ago, four to a court, probably to save us all from asphyxiation

:-)
Thanks in advance!

Jasha

well in the game of tennis, some matches have four players on the court. Some pears are tennis ball colored, but they hardly "play" with each other.

Taking it a step further, maybe the author is a horticulturist and knows that pear trees can cross pollinate, requiring at least two (to each side of the court?).

A court is a rectangular area of ground surrounded by a building, or by a number of buildings, so that it seems closed off or contained by the buildings.

Note:

From my family apartment, you could smell the pear trees that have had been planted years ago, four to a court, probably to save us all from asphyxiation.