The council have indicated that there is still some space available for requesting personal memorial trees to fill gaps in local parks. This includes Victoria Park. If this is something that interests you, information and costs are available on the links below, including a map of potential locations (unfortunately, there is no guarantee they are all still available as this map is not updated live).
The plantings generally happen up until the end of March, and otherwise have to wait until the autumn – nothing to stop people applying out of season though.
Best wishes
Victoria Park Action Group