A Living Herb Centerpiece Wreath:

Use sage and other herbs that may still be in the garden
such as thyme to make a fresh wreath centerpiece. You
may lay it flat on the table with a pillar candle in the middle
or a hurricane lamp.

You'll need:
wreath form
sphagnum moss
floral oasis
fresh herbs: thyme, lavender, rosemary, and sage
floral wire

Line the wreath form with the moss. Cut the oasis to fit inside
the wreath form. Soak the oasis so it holds the water, then
gently press it into the form. At this point you can take fresh
herb springs and make small "bouquets" wrapping the floral
wire around the stems, then make a hole in the oasis and
insert the sprigs. OR take small potted herbs and insert the
pots into the oasis, evenly around the form. Then fill in around
the sprigs or pots with moss, then into the moss you can set
ornaments, pinecones or other natural elements. Since the
wreath is sitting as a centerpiece it's easier to add to it since
it won't be hanging. Mist the wreath occasionally to help it
last longer.