Due to its top-heavy nature, your Watermelon Peperomia may lean or flop to one side. This is generally normal and doesn't necessarily indicate an unhealthy plant. As the plant matures and fills out, it should become more stable. In the meantime, you can add a small stake to provide gentle support and help the plant remain upright

Peperomia is a large genus of mostly small, epiphytic plants that grow on rotting wood in tropical & subtropical regions of the world! Most Peperomia have thick stems, fleshy leaves, & very thin, fibrous roots.

~Do Not let Peperomia sit in excess water. As epiphytes, in the wild they would be growing on tree trunks or branches in the forest understory where they would get most of their water just from dew or moisture in the air.

~Do Not place in full sun or high light. In the wild Peperomia are tropical understory or forest floor plants. This means they grow best in bright shade to low light conditions.

~Peperomia will form inflorescences when happy but unless you are trying to self-pollinate, they can be removed to conserve energy for foliage production.