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Plant of the Month

Tanyosho Pine
Pinus densiflora 'Umbraculifera'

Location: Grids U2, U3, T3 along the lower part of the Hosta Walk in the north west corner of the Arboretum

These pines, which provide the shade for the lower part of the Hosta Walk, were among the first group of trees planted in the Arboretum. The Moscow Rotary Club provided the trees and the labor to plant them on Easter Sunday, April 11, 1982. It seems appropriate to mention these trees now, as David Trail, one of the victims of the recent tragic shooting in Moscow was one of the Rotary Club members who was instrumental in the planting project.

Tanyosho Pines, Pinus densiflora 'Umbraculifera' 1-21-15
Tanyosho Pines, Pinus densiflora 'Umbraculifera' 1-21-15

The word tanyosho is a mispronunciation of the Japanese tagyôshô that literally means "many-way pine," referring to the multiple stem form of the tree. Ten of the original twelve trees are still alive and doing well. They all have the classic 'umbrella' form, wider than tall with a broad flat top.

reddish bark on Tanyosho Pine 1-21-15
reddish bark on Tanyosho Pine 1-21-15

Another distinguishing characteristic of the tree is the colorful inner bark which is exposed as the older outer bark flakes off. In some traditional Japanese gardens the pines are not only intricately pruned, but the trunks are actually polished to remove more of the older bark and expose the colorful inner layer.

Monthly Projects

The mild winter has continued in Moscow, the weather has been so nice that I am a little behind in getting the planting records for the past year updated in the database. I am nearly done, and the updated inventories should be up on the web site soon. I am far enough along to report that we planted 1,023 'permanent' plants last year. That number does not include the 1,500 or so annual flowers that we plant every year. The 1,023 plants were divided into 282 woody trees and shrubs and 741 herbaceous perennials, bulbs, and grasses. The number includes 155 different taxa or kinds of plants from 66 different species and 33 different botanical families.

We have also been able to get some extra clean up and pruning done in the Xeriscape Garden and cut down four large dead evergreens over in the Shattuck Arboretum.

'Vandal Gold' Scots Pine, Pinus sylvestris 'Vandal Gold' 12-22-14
'Vandal Gold' Scots Pine, Pinus sylvestris 'Vandal Gold' 12-22-14

There are two new stickers in the Arboretum kiosks which demonstrate a little of the value of the Arboretum. The first one is from the travel web site, tripadvisor.com. The Arboretum is currently the #1 attraction in Moscow! The second one is from the organization ArbNet, a relatively new program from the Morton Arboretum in Chicago to provide an accreditation program for Arboretums. There are four levels of accreditation based on the size of the collection, along with requirements for documentation, labeling and staffing. The U of I Arboretum is accredited as a Class 3 out of a possible 4. There are currently 93 accredited Arboretums in the program.

Upcoming Events

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Arboretum Associates Annual Plant Sale
Saturday, May 30 2015 9:00 am to 12:00 pm
Ice Rink at the Latah County Fairgrounds

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Arboretum Associates Annual Meeting
Wednesday, April 8, 2015 7:00 pm
1912 Building, Great Room
Socializing, board elections, and an annual Arboretum report

'Magnum' Coral Bells. The biggest leaf of any of the Coral Bells!
'Magnum' Coral Bells
The biggest leaf of any of the Coral Bells!

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