Sands Point Preserve Conservancy Mother’s Day Tea May 13 3 -4 pm Celebrate your mother and all of the great women in your life at the Mother’s Day Tea in Hempstead House. Live chamber music accompanies the festivities, and guests are welcome to tour Hempstead House and the Rose Gardens. For the perfect Mother’s Day gift, consider a making a donation to the Iris Garden in honor of the special women in your life, and support the third season of the magnificent iris garden beside the pond.