Miracle Gro, 8 OZ, Christmas Tree Food, Reduces Needle Drop Throughout The Holiday Season. Helps keep your tree hydrate throughout the season. Simply add one capful of Miracle-Gro for Christmas trees to every quart of water added to you tree stand throughout the holiday season. Be sure to check water level regularly as freshly cut Christmas trees tend to absorb water more frequently in the first few days after cutting. Always ensure the bottom 2 inches of the tree trunk is immersed in water.