There are probably hundreds of combinations that will work but the only combinations that will work every time, and don't need a lichen dragon, or a limited dragon are Cold and Evergreen and Evergreen and Plant.
The possible offsprings are Cactus dragon Storm dragon Lichen dragon Quake dragon Moss dragon Tree dragon Mountain dragon Crystal dragon Moon dragon Sun dragon Rainbow dragon
Don't ask me I'm not so sure.
I got mine with a magnetic dragon and a lichen dragon and got it while trying to get another apocalypse dragon.
Forge + Plant Blazing + Lichen Blazing + Plant Lava + Air
You would either get a Cactus dragon, a Storm dragon, a Lichen dragon, an Ash dragon, a Hail dragon, a Sun dragon, or a Moon dragon.
Breeding a storm dragon and plant dragon together can either get you a sun dragon or a moon dragon along with a lichen, storm or cactus. If it takes 48 hours to breed/incubate then you have either sun or moon. If you keep trying you will get it eventually I did.
It will make a lichen dragon
Fire Dragon and Lichen Dragon
It will make a lichen dragon
The most effective method is a cold dragon (lv 10 left) and a plant dragon (lv 10 right).The lichen dragon unlocks at user level 9. It takes 6 hours to breed, and another 6 hours to hatch. It gives 6,000 experience points when hatched. It can be purchased in the market for 100 gems. The egg is light blue with green vertical wavy stripes.Some other breeding methods are (listed left to right and level 10):Cactus + StormPlant + StormBloom + Air
i breed a nenufar dragon and neon dragon,and i get a petroleum dragon.
You should try seaweed+firefly, if you want moon or sun my friend got lucky he breed crystal+lichen he got sun on the first try and moon on the 3rd.