Unlike many other branching annuals, China Asters generally do not require pinching. They naturally produce a strong central stem surrounded by sturdy lateral branches. Pinching main shoots can delay your flowering window and result in shorter stems, which is often undesirable for long-stem cut flowers.

Harvest stems when the outer ring of petals begins to open and reveal color, but before the central disc is fully visible. Strip all lower foliage that would sit below the water line to prevent bacterial growth, trim the stems at an angle, and immediately place them in fresh water. With clean water and indirect light, China Asters can last 7 to 10 days in a vase.

Because Crego Mix China Asters grow up to 36 inches tall with large, heavy double blooms, tall plants can lean or bend during high winds or rain. Staking individual stems or using horizontal netting/corralling in cut flower beds will help keep your flower stems straight and upright.

No, China Aster (Callistephus chinensis) is a true tender annual. Unlike native perennial asters (Symphyotrichum species), China Asters complete their full life cycle—from germination to flowering and seed production—within a single growing season and will need to be replanted each spring.