When I was a child we always cut holly to bring into the house but mistletoe was something we had to buy. A bunch of mistletoe would dangle from the light in the hallway. The usually reserved British were apparently open to kisses as this time of the year! Now, we have mistletoe growing in huge bunches from our live oak trees. They tend to favor apple and oak trees. I have even read in English garden magazines how to take the berries and push them into a crack in the tree bark in order to grow your own little parasite!
It is easy to see how these plants were looked upon as special in the winter garden. The evergreen holly and mistletoe with their red and white berries and the robin with his red breast. They brought a little brightness into the winter home.
I hope your garden has something to offer the Christmas home- be it pine cones, seed heads, ivy or berries. Greetings of the Season to gardener's everywhere.