High-acid fruit in a can, like pineapple, has a shelf-life of up to 18 months ... there's one major factor to keep in mind — texture. The fruit will still taste as sweet as when you stored it, but ...
But on our property it was just a light frost, so all of the bright red nectar-filled blossoms on my pineapple sage (Salvia elegans) plants were still OK. I haven’t seen a hummingbird ...