Yes, seed hoarders are also plant hoarders too.
I am hoarding geraniums (pelargoniums) by potting them down into 4 inch peat pots.
15 of these fit nicely in my Rubbermaid boxes. The boxes go in the windows until next spring.
I do this 1. because I am cheap and
2. the store bought geraniums are usually sprayed with dwarfing chemical.
These over wintered ones have outgrown the spray and will grow more naturally.