Salvia is a plant family that comprises HUNDREDS of different plants.
The most common types of salvia are the sages, mostly used in cooking.
Going by the flowers, the plant in your picture LOOKS like a sage plant,
but most likely it will be one someone planted for the flowers or for cooking.
The main reasons it is VERY UNLIKELY this is salvia divinorum is:
1. It ONLY GROWS naturally outdoors in very specific parts of MEXICO, and no where else on Earth.
2. It very rarely flowers.
3. The leaves tend to be very dark green with light green lines for the veins.
Pull a leaf off your plant and rub it , then smell it, if it smells spicy or like pizza/ Spaghetti, then it is a culinary herb.