A miracle how nature recovers from the most adverse of conditions.
Yes I planted a Teucrium fruticans in September 2020. It really did well, lots of new growth and quite large until February 2021, when two days of frosts -- maybe -2 -- killed it right off, disappeared without trace.
I just went out and it's back with a vengeance -- from absolutely nothing to about 24 inches of growth already.
Yes, nature is amazing. I had left a plant (tender woody herb) outside (It was snowed upon), but finally brought it inside. Conditions were far from perfect. I had to keep it in a room that was too cold; finally moved it to warmer room after Christmas tree was gone and was able to put it in front of a window. Before that (in cooler room), there were only a couple of leaves showing green....rest of the leaves dried up and fell off. Now, being in front of direct sunlight (again) but also the fact that this room is much warmer, I slowly got to see signs of growth again [Also, I gave it a tiny bit of food since I hadn't fee it in quite some time]. After waiting patiently for some more signs of life, I did a bit of trimming back, and again, more buds and leaf growth (It was getting too unwieldy size-wise to deal with and catching on the curtains, etc., and also needed a bit of shaping too).
It's alive!

Now just to keep it free from various diseases and spider/bug issues 'til I can get it back outside. It would be hard to spray it for anything where it is. Finger's crossed.
And very happy to hear that your plant survived Mandryka. I've found (and happily surprised) that certain plants--once they have established good root development and particularly if they are in a very favorable place (like your courtyard or in another sunny and somewhat protected conditions) will surprise you by pushing up and developing new growth; it might not be perfect looking (as in as big and full as before), but it you give it a while, you can often get it back to close to as it was before....I've thought that I had lost some butterfly bushes, but they survived (helped to be 'brutal' and really cut back the dead wood); the will to survive is strong, non?