In most areas, diascia will slow down or stop blooming once hot summer weather arrives, but in areas with cool summers, you can count on it to bloom all the way to frost. And in mild-winter areas (Zones 8-10) with mild summers, you can grow diascia as a perennial.

Light: Grow diascia in full sun or part shade.

Water: In garden beds and borders, water diascia when the top inch or so of the soil starts to dry out. Spreading a layer of mulch over the ground can help keep the roots cooler and more moist, helping the plant to last longer. In containers, water diascia when the top inch of the potting mix dries.

Pruning: Diascia typically doesn't require pruning or deadheading, though if the plant gets too large, you can give it a quick trim at any time to keep it sized just right.

Fertilizing: Diasica grows best in average or fertile soil. Amend heavy clay or sandy soil with compost or other forms of organic matter at planting time. In containers, feed regularly with a general-purpose fertilizer or use a timed-release fertilizer when you first plant it.