You can use fresh ingredients as well. I tend to use dried because I can grind the herb/veggie/plant up and use it as a colourant. Be sure to use liquid or puree for fruits and veggies since chunks will go moldy in the soap.
Here is a link to another readers question (and the comments) that is pretty similar.
If you've found this site to be helpful in expanding your soap making knowledge and would like to make a SMALL donation to help with the cost of maintaining this site, your support would be greatly appreciated.