Tony Aiello, Director of Horticulture at the Morris Arboretum, reports that we can expect peak fall foliage in the greater Philadelphia region “in the third week of October through the end of the month, with some species like Japanese maples into early November”. Thanks to the mild summer temperatures and a relatively wet September, most plants are well hydrated and not losing their leaves due to drought. This year however, because of the very wet summer, some species like crabapples and cherries experienced fungal problems which led to early leaf drop.

 To see the brightest and best reds and oranges on this year’s trees, “hope for nice bright sunny days going from late September into October,” Aiello said. “We still need those sunny days.”