The next three of my family Christmas traditions involve the use of greenery. Over the years from my childhood onwards, various parts of the family have lived in houses with easy access to good holly, ivy and other greenery and we've usually had access to mistletoe too. This has made decorating our houses with seasonal foliage very easy.
7. An Advent wreath. Many years ago I bought a simple metal Advent wreath form with 4 candle holders mounted on it and I can wrap greenery round the form.
8. We always have holly wreaths on our doors. I now buy mine as making one takes me a long time and I find working in the gloves I need to protect my hands too difficult. However, my mother always made hers until a stroke and loss of much of her sight meant she too now buys one.
9. Holly. We always have holly (with berries) over the mantelpieces and on, near or over the front doors. Some years we remember to put net around some of the holly to ensure that the birds leave us some with berries, but even when we forget there is usually enough!