Tree Ulmus americana 'Princeton' [Princeton American Elm] This American Elm cultivar retains the attractive vase-shaped form that the American Elm is known for and has some resistance to both the elm leaf beetle and Dutch Elm Disease, which is caused by Ophiostoma ulmi. (Dutch Elm Disease has lead to the near extinction of the American Elm in the US). Many other diseases can cause damage to this cultivar, though.
Tree Ulmus americana 'Valley Forge' [Valley Forge American Elm] This cultivar has the classic vase-like form and ascending branches that the American elm is know for, while also having the best Dutch elm disease resistance of the new "Dutch elm resistant" cultivars. Important to stake when young.
Tree Ulmus davidiana var Japonica 'Morton' [sold as Accolade®] [Accolade Elm] Very good resistance to the Dutch elm disease pathogen, Ophiostoma ulmi, which has led to the near extinction of the American Elm (Ulmus americana) in the U.S. Also has good resistance against phloem necrosis, elm leaf beetle, and leaf miner.
Tree Ulmus × hollandica 'Groeneveld' [Groeneveld Dutch Elm] Dense, regular branching. Resistant to Dutch Elm Disease. Wind tolerant.
Tree Ulmus × hollandica 'Pioneer' [Pioneer Dutch Elm] Resistant to Dutch elm disease and phloem necrosis, but susceptible to the elm leaf beetle.
Tree Ulmus × 'Homestead' [Homestead Elm] Dutch elm and phloem necrosis resistant, but susceptible to the elm leaf beetle. 'Homestead' was formed from a cross between Ulmus minor, U. x hollandica, and U. pumila.
Tree Ulmus minor [Smoothleaf Elm] Moderate resistance to the Dutch elm disease pathogen, Ophiostoma ulmi, which has led to the near extinction of the American Elm (Ulmus americana) in the U.S.
Tree Ulmus pumila [Siberian Elm] Grows under almost any conditions, especially useful in dry sites. Resists Dutch elm disease. Leaf beetles can defoliate trees. Brittle branches and subsequently messy. Avoid planting this tree in the landscape, unless there is no other choice. Considered invasive in many areas.
Tree Indiana Native Ulmus rubra [Slippery Elm] The Slippery Elm has a vase-shaped form, similar to that of the American Elm (Ulmus americana), but with more ascending branchlets. This tree gained its common name from the moist, slippery, red inner bark chewed by Native Americans and pioneers to quench thirst. Not considered very ornamental for the landscape, due to its coarse texture, weedy tendencies, and susceptibility to Dutch Elm Disease (although not as severe as the American Elm).
Shrub Indiana Native Vaccinium angustifolium [Lowbush Blueberry] The Lowbush Blueberry requires acidic soils with a pH between 4.5 and 5.5. Iron chlorosis can be a problem in higher pH soils. Mulch around roots to maintain high organic matter. For higher blossom and berry output, grow in full sun. Berries are sweet and edible.
