Wintering over tender perennials Zone 6b/7a

I'm looking for advice on saving my tender perennials/tropicals over winter. My garage is filled with these plants which I have removed from the garden beds. I have dug out and repotted a brug, a papyrus (from the pond), several colocasia, a ruella (tall), a tibouchina, and a very special fuchsia. I'm not sure which can go dormant and which have to go inside. Also, I have some beautiful salvias: leucantha, 'Lipstick','Silke's Dream' and an agastache. I am in McLean, Virginia. This is a 6b-7a. Should I bring in the salvia and agastache? Can they be let to go dormant? Can they be left outside (they are planted in the ground) and just mulched? I just am in Zone Denial and don't own a greenhouse! Thanks,

Brenda

Agastache- should be OK outside and possibly give you seedlings net year too..

The salvia should be fine too if they're perennial annuals.

salvia leucantha looks like too tender there. "lipstick ' looks OK. got these by checking plantfiles. Sorry I have no experience with the others....

I've been told that there are a few colocasias that are hardy to our area - just need to mulch well!! I rec'd mine in a trade and is a baby...so I'm keeping it potted inside till spring.

Don't ask me what on earth I was typing up there. Sheesh. If they're perennial salvias, they should be fine.

Sally, I can't tell you how many plants I'm growing in zone 6 that I've found listed in plant files as being hardy only to zone 8 or somesuch. The plant files hardiness listings are not reliable. Always double check elsewhere.

HA HA Hart~~ we were going to ask you to bring some of them 'perennial annuals' to swap!!!
Good point about PF zone listings. I will bear that in mind. Per something somebody else wrote, I put a lantana in the ground this year to see if it comes back here.

It never came back for me and that was in a protected area right next to the house, so I would guess they're pretty tropical.

I swear my brain is addled this week. But don't laugh, I have some annuals I could call perennial annuals I can give you at the swap. LOL