At a lecture, the speaker said a "fact" that for date palms to produce quality fruit, the roots of the trees need to mingle together and a single tree does not produce (good) fruit. Can you verify if this is true? With any species? Thank you Moshe
Certified GKH Gardening Expert
Though you do need male and female Date Palms for fruit production, I have not found any information about 'root mingling' for fruit to be produced.
Here are some links with more information.