Permie newbie here...

Received a flat of flowering purslane as a gift, and I want to know... any pros or con's of planting them under my fruit trees? I've got Turkey fig, LSU fig, fuyu persimmon, 2 Chinese chestnuts, a Pakistan mulberry, and a Starks "Sweet Heart" edible nutted apricot, all brand-new this spring, and am in Dallas- zone 8a, with horrible Houston black clay that cracks in summer and cements boots together in 4" of muck in wet winter. For companion planting I found lots on their interaction with herbs & vegetables, but so far nothing on fruit trees. Thank you all in advance for any insights!!