It takes about two years for a newly planted tree to grow roots and become established in its environment. Our team is committed to caring for our tree canopy during this vital period. Our two year warranty on all trees planted by our Neighborhood Forestry team covers staking, watering, mulching, and basic pruning. Our maintenance crews generally aim to revisit plantings that are under warranty at least once per month. After two years, Baltimore City Department of Recreation and Parks’ Forestry Division takes over maintenance of the city’s street trees.