I’ve been thinking about plants of the late Pleistocene era, and the animals that ate them, described in a pictorial essay by David Bryant in the fall 2021 issue of Flora, the California Native Plant Society’s quarterly magazine. Among them are Joshua Trees, California lilac, manzanita, grasses, sedge, rush, Pinyon pine, juniper, and sycamore, to name a few. I’ve also been thinking about one of the biggest trends in gardening this year: “regenerative landscaping,” which is broadly defined as future-looking, considering all the creatures of the garden, recognizing that more than just humans use the space. As gardeners out in it, we know this mixed-use firsthand, but it can be…