I started some Agapanthus from seed a couple of years ago, and last spring decided to put a few in the garden and see if I could provide them enough protection to survive the winter. We had a long winter this year, and colder for longer than we have had in several years, so I was thinking their chances were slim. Well, what a lovely surprise I found a few days ago, they made it! Most sources list them as hardy to zone 8 or 9, and I'm in zone 6

Ours survived to 15F in the ground without mulch. We had below 10F this fall for several nights and many bulbs and plants died in the ground, even lilies. We no longer mulch due to the high cost of wood byproducts and that keeps going up. Mulch would have saved some things but it is a good thing to have them out of the way now.

We had a few weeks of temps from 0 to 20 this winter, longer periods of colder temps than we've been used to the last few years, so I was kinda doubtful. Now I'm waiting to see if my hardy banana made it.

Lisa, have you grown any Amaryllis in the ground?

Only belladonna, and it wasn't very happy with the weather, it puts up new leaves in the fall....and then again in the spring since the fall leaves get frozen or beaten off. At least it is putting up new leaves now so it did survive.
The narcissus "Martinette" puts up leaves in the fall here, they usually survive but not this winter, except the one up against the shadehouse where it is protected.