Creating Buttercream Succulent Gardens can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour your cake pans.
2. Mix Dry Ingredients: In a large bowl, sift together the flour, granulated sugar, cocoa powder, baking powder, and salt.
3. Combine Wet Ingredients: In another bowl, whisk together the milk, vegetable oil, eggs, and vanilla extract until well combined.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until smooth and no lumps remain.
5. Bake the Cake: Pour the batter evenly into the prepared cake pans. Bake for 30-40 minutes or until a toothpick inserted in the center comes out clean.
6. Cool the Cake: Remove from the oven and allow the cakes to cool in their pans for 30 minutes. Then, gently transfer them to wire racks to cool completely.
7. Prepare the Buttercream Frosting: In a large bowl, beat the softened butter until creamy. Gradually add the powdered sugar, mixing well. Add heavy cream and vanilla extract, adjusting the consistency if necessary.
8. Color the Frosting: Divide the buttercream into separate bowls and mix in gel food coloring to achieve your desired shades.
9. Assemble the Cake: Once the cakes are completely cooled, stack them on a serving platter. Frost the top and sides with a base layer of buttercream.
10. Pipe the Succulents: Using piping bags fitted with different tips, pipe various shapes onto the cake to create succulents and flowers. Mix techniques for different textures and designs.
11. Add Finishing Touches: Sprinkle edible glitter or decorations if desired for added flair.

These steps will guide you in creating this incredible Buttercream Succulent Garden effortlessly.