Plant Finder

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Want to find the perfect plant for your landscape, or identify a mystery plant? Hartman Garden Center has an online Plant Finder to help you with your task. Remember, the best solution is always to talk to our plant and landscaping experts. Don’t hesitate to give us a call at (952) 443-2990.

    perennial

    Smooth Aster

    Aster laevis

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    Smooth Aster (Aster laevis) at Hartman Companies

    Smooth Aster flowers

    Smooth Aster flowers

    (Photo courtesy of NetPS Plant Finder)

    Height:  3 feet

    Spread:  24 inches

    Sunlight:  full sun  partial shade 

    Hardiness Zone:  4

    Other Names:  Smooth Aster

    Ornamental Features

    Smooth Aster has masses of beautiful lavender daisy flowers with yellow eyes at the ends of the stems from late summer to late fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its narrow leaves remain dark green in color throughout the season. The fruit is not ornamentally significant.

    Landscape Attributes

    Smooth Aster is a dense herbaceous perennial with a mounded form. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

    This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It is a good choice for attracting butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

    • Disease

    Smooth Aster is recommended for the following landscape applications;

    • Mass Planting
    • General Garden Use
    • Naturalizing And Woodland Gardens

    Planting & Growing

    Smooth Aster will grow to be about 3 feet tall at maturity, with a spread of 24 inches. It tends to be leggy, with a typical clearance of 1 foot from the ground, and should be underplanted with lower-growing perennials. The flower stalks can be weak and so it may require staking in exposed sites or excessively rich soils. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.

    This plant does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This species is native to parts of North America. It can be propagated by division.

     
     
    Hardiness Zone Plant Height Minimum Sunlight
    Characteristics
    Massing  Garden  Naturalizing 
    Applications
    Flowers  Attracts Wildlife 
    Ornamental Features
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