What are rules about flowers the day of services? Any special rules?

I believe they have list of rules on there web site

Generally two arrangements may be brought the day of the service. The casket spray and two baskets as an example. It's more because of number of refuse pickup cycles built into a given month which is driven by budget. If it were unlimited there would have to be multiple pickups weekly which the budget does not support. The majority of funding is for burial operations and salaries of the employees. https://www.cem.va.gov/cems/nchp/ohiowesternreserve.asp?_ga=2.217090390.1961327779.1558448760-2040766147.1557575368