Plant of the Month
Petasites japonicus var. giganteus
Location: Grid T-3, west side of the Hosta Walk
Giant Coltsfoot is one of the most dramatic plants in the Arboretum. On any tour, someone almost always says “Wow, what is that?” when we pass the plant.
One of the ways that it produces so much new growth every year is that is starts early as the photo above shows. However, this year that may not work so well, it may have been cold enough later to damage those first new shoots.
Fortunately, there was some snow cover to provide some insulation from the cold; and, even if there is some damage, there will likely be enough undamaged material to recover.
The current February weather pattern is pretty typical for Moscow, a couple of weeks of mild temperatures with highs in the 50’s and then some days with much colder temperatures. I think that variation is one of the big challenges for growing plants in Moscow. Although the minimum temperatures have not been dangerously low, many plants were emerging from dormancy and may have been damaged. As always, winter damage will probably appear to be completely random, with supposedly hardy plants suffering and surprisingly tender plants surviving.
Arboretum Associates Annual Meeting
Thursday, April 12, 2018 6:30 pm – 9:00 pm
Great Room, 1912 Center
Raffaella Sini & Roberto Capecci, faculty members in Landscape Architecture, will be speaking on their experiences competing in temporary garden installation festivals around the world.
Arboretum Associates Annual Plant Sale
Download Plant Sale List (PDF)
Saturday, May 19th 9a.m. – 12p.m.
Rotary Ice Rink, Latah County Fairground