Viscum album.

As Nat King Cole once sang, it helps to make the season right...

Viscum album, "Mistletoe".
(Obligate hemiparasite.)

Planting: March-April.
Flowering: Winter berries.

Aspect: Any.

Hardiness: Fully hardy.

Notes: Mistletoe is usually spread through trees by birds. Flora and fauna are best kept together!