Since wildflowers are all native, but natives are not all flowers, perhaps if you repeated a wildflower week it could be Wildflowers & Natives to allow some wiggle room for articles/discussions about native flora that do not necessarily flower. Up here in the Pacific Northwest, many of our natives are ferns and other forest understory plants, whereas in the plains states there are many more meadow flowers to showcase. Pollinators seem like a natural discussion point, which also leads into the next tier of native birds and fauna necessary to keep a good balance in our respective regions. Stewardship comes to mind.
Although I do acknowledge that roses and daylilies are certainly popular, sometimes I feel a bit inundated with information about both. No worries, though, easy enough to skip if I'm not in the mood -- and I do understand the correlation between interest and web traffic.
Looks like Trish will have a full plate of ideas to choose from - best wishes and I look forward to another successful year of featured weeks (am I the only one who doesn't 'get' why they are called weeks when they are really months??)
Edited to add: maybe it really is just one week out of each month? I admit I have not been paying as close attention as I could to this feature. My bad.