What are the results of breeding firefly and seaweed dragons in DragonVale?

The most effective method of breeding a seaweed dragon is a water dragon (lv 10 left) and a plant dragon (lv 10 right). This has about a 44% success rate.

It takes 5 hours to breed, and another 5 hours to incubate. The egg has blue and green wavy vertical lines.

Other possibilities (listed left to right and at level 10)

Love + Water (10% chance)

Lightning + Swamp (26% chance)

Ice + Flower (9% chance)

Sakura + Fog (8% chance)

The seaweed dragon can also be purchased in the market for 250 gems.