Advanced searches in Google can help you identify grants:
Try a search like:
(grants OR scholarship OR funding) AND permaculture
Put a word or phrase inside quotes. For example, "tallest building".
Put "OR" between each search query. For example, marathon OR race.
Put "site:" in front of a site or domain. For example, site:youtube.com or site:.gov.
Put "related:" in front of a web address you already know. For example, related:time.com.
Put "cache:" in front of the site address.
The Foundation Center Directory is a searchable directory of grants; you can subscribe for a personal account if you are starting a long term grant writing project, or you can visit one of the public access options in the area: