Douglas Justice's March 2020 in the Garden - UBC Botanical Garden blog is particularly interesting this month, talking about winter temperature recording, how it's done here, and its usefulness in assessing hardiness of marginal plants. This month's features some of these marginal plants. As usual, there are lots of good photos (and a very nice photo viewer). The survival of this South African tree heath, Erica oatesii, was apparently not a sure thing. Douglas says these "sumptuous rich-red flowers" have been blooming since January. I had a hard time finding these from above, but they're perfectly visible from the path below. I am disappointed in my Stewartia pteropetiolata photos - I like fuzzy branches, and this has them. The photo in the blog is better. I wasn't going to look for the Nothaphoebe cavaleriei because I didn't understand the location, though "top of the Service Road near the Plant Centre" is exactly where it is, outside the plant sales area at the Shop in the Garden, right at the top of the path at the fence. But Eric La Fountaine was helping me identify something I was about to mis-identify, and he pointed it out, right in back of a magnolia I spent quite a while looking at. The leaf undersides have tiny hairs that make them look glaucous greeny-white. I found an interesting history of these trees at Nothaphoebe cavaleriei - Trees and Shrubs Online. Douglas mentions that this tree has died back to the ground three times (database shows "Data Correction - Alive"), so maybe it wasn't expected to crowd out the very special Larix speciosa - see the posting at Unusual trees - two pines and a larch.