On West 15 St North Vanc is a 50' tall oak with bright yellow leaves, that in the last few days are just turning lime green. Perhaps the photos will help identify it? Many thanks
Perhaps not too surprising with so much of its rooting area paved over. It can't be a happy tree. Rip up all the paving, decompact the soil, and add plenty of organic mulch.
So many thanks, Luke - you have nailed it, thats exactly what we have Im sure. Sure a good looking tree in the spring, and we will look at the fall colours later. Ellis Vancouver Canada
Red oak and relations usually leaf out quite yellow in spring. I have only seen the 'Aurea' cultivar in one place, a tree collection up the river from Vancouver. The form there was noticeably more yellow than normal, at a time of year when deciduous trees were all in full leaf. A.L. Jacobson, North American Landscape Trees (1996, Ten Speed, Portland) says it is "extremely rare" in North America. The tree you are wondering about needs to be looked at later to see if it is still yellow - or at least less green than it should be at that time. Even then soil nutrient deficiency or dryness needs to be allowed for, poor foliage color and growth is common among deciduous trees of eastern North American origin in local plantings. The best thing would be to compare the tree shown here with the known 'Aurea' in the Riverview collection, by picking sample(s) of the specimen you are studying and taking them to the arboretum, looking at the two together. http://www.rhcs.org/arboretum.html
