MORE GARDENING: 9 fragrant shrubs for Houston gardens Angelonia, or summer snapdragon, is a South American native with small blooms of lavender, purple, pink, raspberry and white. The plant grows ...

Angelonia (Angelonia angustifolia ... as this can lead to root rot or powdery mildew, says Phillips. Lavender (Lavandula) is a mounding shrub with blueish-purple flowers. There are many different ...