Go back to the pub and talk to Red-beard Frank with the bottle of rum

Kill the gardener if he gets in your way. When you have dug the flowers you will earn your World of Warcraft Gold reward. Summing it up:

1) – Talk to Red-beard Frank in the pub in Port Sarim. Tell him you are in search of a treasure.

2) – Go to Karamja. Talk to Zambo in a store to buy a bottle of Karamja Rum

3) – Talk to Luthas in a house and ask him for work.

4) – Collect 10 bananas. Put the bananas and the bottle of rum in the crate in front of Luthas’s house.

5) – Head back to Port Sarim.

6) – Get/Buy a white apron.

7) – Go inside the back room of the grocery store in Port Sarim and search the crate for the bottle of rum.

8) – Go back to the pub and talk to Red-beard Frank with the bottle of rum. He will give you a key.

9) – Now go to the Blue Moon Inn in Southeastern Varrock. Climb up the ladder.

10) – Go to the west side of the second floor to find a chest. Open it with the key. You’ll get a message telling you where the treasure is.

11) – Get/Buy a spade.’

12) – Go to the park in Falador.

13) – Use the spade on the flowers in the south bench to dig up the treasure. Wyson the Gardener might attack you. If he does, kill him.