China asters can easily grow in rich, well-drained, evenly moist soils.
They like a full sun or partial shade position.
In hot regions, midday shade is beneficial.
The Spruce / Evgeniya Vlasova
Soil
China asters grow best in rich, well-draining soil.
Water
Even moisture encourages the healthiest growth in China asters.
They could need watering as often as twice weekly.
The Spruce / Evgeniya Vlasova
Considermulchingaround the roots to help preserve moisture and reduce the risk of drying out.
Temperature and Humidity
China asters aren’t good flowers to choose for sultry deep south regions.
These cool-weather annuals appreciate temperate climates to produce abundant blooms.
The Spruce / Evgeniya Vlasova
Mulching can help keep roots cool when temperatures rise.
Fertilizer
China asters appreciate regular fertilization during the growing season.
A balanced all-purpose water-soluble formula will work well.
The Spruce / Evgeniya Vlasova
Steer clear of high-nitrogen fertilizers, which encourage foliage rather than bloom growth and can promote disease.
It’s possible toget rid of aphidsandspider miteswith an organic pesticide before a major infestation takes hold.
Learn more about how to encourage bountiful blooms.
The Spruce / Evgeniya Vlasova
Bloom Months
Typically, China asters bloom sometime between early summer and mid-fall.
Some others put on a show from late summer to mid-fall.
How Long Do China Asters Bloom?
The average bloom time for China asters is around six weeks.
Some cultivars might put on a show for as long as two months with the right care and climate.
What Do China Aster Flowers Look and Smell Like?
Colors include red, pink, white, purple, yellow, and blue.
Even though they have little fragrance, their showy appearance makes up for it.
Although they aren’t native North American plants, China asters aren’t considered invasive.
They are also non-toxic, making them a great choice for kid and pet-friendly landscapes.
China asters areannual plantsrather than perennials.
That means they typically only live for one growing season before dying off.
They’re ideal companion plants for otherdeer-resistant annuals, likemarigolds.
University of Florida Cooperative Extension Office.
