Flowers are so passé...or were, I suppose. This episode is everything I could find about celery vases, the ultimate wedding gift for any young couple in Victorian times. 

Sources: 

https://mitziscollectibles.typepad.com/mitzismiscellany/2011/11/spooners-celery-vases-101-1.html#:~:text=Celery%20vases%20were%20a%20fixture,were%20a%20sign%20of%20hospitality.

https://en.wikipedia.org/wiki/Celery_vase