Propagating Evergreens
These can be tricky but here are a few hints.
Evergreen Seed
Treat evergreen seed exactly as shrub seed or big perennial seed. You'll often find seeds in cones or falling off your evergreen plants and there is absolutely no reason why these can't be grown.
Actually there is one reason. Some evergreen shrubs, particularly the dwarf varieties, are produced from witches brooms (abnormal growth on normal plants) and if they produce a seed, it will likely resemble the parent plant more than the variety.
Having said that – if you can obtain evergreen seed, you can grow it by following the directions for outdoor sowing right here.
Evergreen Cuttings
Treat evergreen cuttings as hardwood cuttings and while some of the easier plants (thuja / eastern cedar) will root from tender tip cuttings, for the most part evergreens are best treated as hardwood cuttings in the home garden.