They held up well (crown and glory).I had the herbs grown local Newton Greenhouse Newton NH. Mint, parsley,rosemary,lemon balm,origanum.The bottom of the ceremony arrangements are whole plants staked into the oasis to secure.I designed thru them into the foam.I made the bouquets three days before covered with plastic in vases of water.
Even the scented geranium and lilacs held up well.