ONLY if it's in a depleted state of charge.
As was mentioned, a fully charged lead acid battery doesn't freeze until -70C. If your new boat battery died it was because it was either stored in a depleted SOC (multiple engine starts during winterization without sufficient running time for proper recharge), or something drew it down (phantom draw from the boat) and then left that way for the winter. With self-discharge on top of it (5% per month for LA IIRC) that makes things worse yet.
A battery at only 25% SOC will freeze solid at -15C however, and once frozen, is permanently damaged.
A battery TENDER (not a trickle charger!) is the proper tool to use here, by the way. A trickle charger will overcharge a battery if left on for too long - a tender will not.