For more information on Passover:
and this is a really good article on research into the bitter herbs used http://www.neot-kedumim.org.il/public/english/what/newsletter/pesach_06/herbs.htm
I searched for bitter herbs in general and found this very excellent article above photos of bitter herbs
an excerpt from this article:
Bitter stimulation effects are shared by any herb that can trigger the receptor sites on the tongue, but selection of appropriate bitter can be made by considering their inherent strength, other actions and specific indications.
Commonly used Herbal Bitters
Relative intensity of Herbal Bitters
The strength of an action effect is not particularly relevant in the case of bitters, instead a subjective measure of taste intensity approximates more to the degree of physiological response a bitter herb might generate. Thus we can identify 'mild' and 'strong' bitters, but to the bitter neophyte they may all seem too much!
Herbs for Easter
Doing a search for herbs at Easter, I got back lots of articles on dyeing eggs with herbs
I found this alternative to a candy Easter basket; making herb gifts instead for your baskets http://motherearthhealingherbs.blogspot.com/2009/03/easter-basket-goodies.html
and I did find this really yummy looking Easter dinner made with herbs here: http://dinner-recipes.suite101.com/article.cfm/sundayspecial_easter_dinner
I was surprised that I could not find information for herbs used specifically at Easter in my search
Most of us have our own traditions, I was brought up with ham, scalloped potatoes, a green vegetable, nice fresh salad, jellos, and of course a pound cake and some pies.