Elaeagnus angustifolia, or Russian olive, is not recommended for planting, due to invasive tendencies. This species is non-native to Ontario with a natural range in Asia and limited areas of eastern Europe. It can thrive under a wide range of soil textures including sand and heavy clay, and can withstand flooding and silting, however, it grows best in deep sandy or loamy soils with only slight salt and alkali content. The tree has an aggressive root system and fast growth rate, and it spreads via birds which allows it to outcompete native species. The Auditor General of Ontario has specifically flagged this tree species as a concern in the nursery trades ("Value-for-Money Audit � Management of Invasive Species," 2022), and as such should not be recommended for planting. For an alternative native to North America, consider Amelanchier spp.