The bloom dragon was a limited edition dragon around Easter of 2012.
There are many ways to get the bloom dragon, but the best way to get it is to try the plant and storm combination.
The most effective method is plant (Level 10) + storm (Level 10). That combination has a 27% effectiveness rate. The incubation time is 13 hours. The egg has pastel wavy stripes.
The most effective way to breed a flower dragon is a fire dragon (lv 10 left) and a reindeer (lv 10 right). This has about a 35% success rate. The reindeer dragons were limited edition, so if you do not have one, the next best option is a lightning dragon (lv 10 left) and a flower dragon (lv 10 right), which has about a 20% success rate.
The egg has red and green vertical stripes. It takes 1 hour to breed, and another hour to hatch. It comes available at player level 7, and can also be purchased from the market for 25 gems. It earns 1,000 experience points at hatching.
Other (slightly less effective) breeding combinations include:
The butterfly dragon is limited edition. It is only available in early spring. You will see it in the egg market when it is available.
The most successful way to breed a butterfly dragon is a firefly dragon (level 10 left) and an air dragon (level 10 right). This has about a 22% success rate.
The butterfly dragon unlocks at player level 14. The egg is bright purple with yellow and red dots. It takes 12 hours to breed, and another 12 hours to hatch.
Other, slightly less successful, methods of breeding are:
The rose dragon was limited edition. There were several ways to breed one, but the most successful were:
Flower + Smoke
Blazing + Flower
Air + Flower
Flower + Sonic
To date, there is no leaf dragon in DragonVale. You may be thinking of the tree dragon. See the related link below.
The most effective method of breeding a pollen dragon is using a plant dragon and air dragon. This has a 36% success rate. The egg is green with blue air swirls, and takes 7 hours to hatch.
You do a fire and plant
It takes 14 hours to breed and hatch in DragonVale.
Sonic Dragon and Flower Dragon
Flower dragon
You get a Sakura Dragon by breeding a Tree and Flower Dragon together.
You wait if your on about getting a dragon breed in your breeding cave/island
Either a poison dragon or a flower dragon
The dragons in DragonVale are not trainable. You only feed them to level them up and breed them.
Breeding a flower and scorch dragon will result in 5 possible dragons which are, poison dragon, cactus dragon, flower dragon, firefly dragon, and scorch dragon.
you get a poision dragon
You will end up getting a lava or a fire
a hybrid- either a rainbow dragon or a flower dragon... hope this helps:)
You will either get a poison dragon, flower dragon, obsidian dragon, lava dragon, moss dragon, or tree dragon.