One of my all time favorite large shrubs is Garrya or Silk Tassel. Garrya elliptica is a native of southern Oregon and California coastal ranges is a somewhat untidy evergreen shrub that produces these wonderful long catkins from late December through February. This Zone 4-9 shrub is beautiful when not in bloom as well. With glossy green leaves it is delightful placed in the back of a border or as a feature in the garden. Be sure to give it room since it will slowly grow to 8-10′ tall and wide.
This is Garrya x issaquahensis which I picked up several years ago at the old Herronswood Nursery. More commonly found in local nurseries will be Garrya elliptica. The catkins do not grow quite as long but, is equally lovely in the garden