Commentary for Kiddushin 78:1
ארבע על ארבע רוחות הערוגה ואחת באמצע שפיר אלא הכא משום נוי ואי נמי משום טרחא דשמעא היא:
[that he sowed] four [species] on the four sides of the bed and one [species] in the middle.<span class="x" onmousemove="('comment',' I.e., sowing different species in the same bed, yet taking care according to the regulation to leave sufficient space between each for their roots not to intertwine; v. Shab. 84b. The only possible reason would then be that kil'ayim are forbidden outside Palestine.');"><sup>1</sup></span> Here, however,<span class="x" onmousemove="('comment',' Since he did not observe this regulation.');"><sup>2</sup></span> he did so on account of beauty, or [to save] the attendant trouble.<span class="x" onmousemove="('comment',' In fetching vegetables, he would know the place of each species.');"><sup>3</sup></span>