There are a variety of plants and flowers that rabbits won’t eat.
The bonus is that most of these species are also deer-resistant, offering double protection from common pests.
University of Maryland Extension.

The Spruce / Leticia Almeida
9, 2014. doi:10.1371/journal.pone.0105500
Lily of the valleyConvallariamajalisL.
The University of Georgia - Center for Invasive Species and Ecosystem Health.

Butterfly bushThe Spruce / Evgeniya Vlasova

Adam’s needle shrubThe Spruce / Letícia Almeida

CotoneasterThe Spruce / Letícia Almeida

New England astersThe Spruce / Letícia Almeida

PoppyThe Spruce / Leticia Almeida

CandytuftThe Spruce / Kara Riley

DaffodilThe Spruce / Evgeniya Vlasova

FlossflowerThe Spruce / Autumn Wood

Virginia CreeperThe Spruce / Autumn Wood

‘Silver mound’ artemisiaThe Spruce / Adrienne Legault