its my understanding the catkins should be from Mid Winter to March time? I assume its a Garrya as an Aspen will sport catkins during the summer?
My information says the bracts stay on the plant through summer. Aspens do produce catkins but your plant looks like a Garrya. Here is more:
https://www.rhs.org.uk/plants/garrya/growing-guide
https://plants.ces.ncsu.edu/plants/garrya-elliptica/
https://www.gardeningknowhow.com/ornamental/shrubs/silk-tassel-bush/growing-silk-tassel-plants.htm