Aster Harrisons Blue

Aster novi-belgii ‘Harrison’s Blue'

€5,90
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Aster Harrisons Blue

Aster novi-belgii ‘Harrison’s Blue'

€5,90

Aster novi-belgii 'Harrison's Blue' forms a bushy clump of dark green foliage and deep purple flowers.


The leaves are dark green and shiny. The flowers are more purple than blue, and star-shaped.

This Aster looks particularly magnificent alongside ornamental grasses:


The blooming period is long and highly attractive to pollinators. This allows for this variety to produce a great number of long flowers, which are particularly magnificent in cut flower bouquets or any floral arrangements.

Flowering August, September, October
Flower Color Purple
Exposure Full Sun
Frost Tolerance -15°C
Size 60cm H x 60cm W
Soil Cool, Poor, Well-Draining
€5,90
In stock

🪴9x9 cm

🚂 Ships across EU
🌱 Grown in our nursery

Gardening Tips

☀️Prefers a strong morning sunshine to a blast of afternoon heat
💧Applying mulch around the clump will help retain moisture for a longer period.
✂️ Cutting back the stems to 20cm from the ground in January promotes a strong reconstitution
➗Divide the clumps as they begin to multiply. It isn't invasive, but can be a vigorous grower.

The Botany

Floral morphology

It is characteristic of the Asteraceae family: the flowers are arranged in composite heads (capitula), combining central disk florets and peripheral ray florets.

The ray florets are usually brightly colored—shades of purple, blue, pink, or white—while the disk florets are often yellow, providing a striking contrast. Each capitulum is subtended by bracts (phyllaries) forming an involucre. Flowering occurs from late summer to autumn in most species, making asters important for late-season garden color.

Reproductive biology

Asters are hermaphroditic, pollinated primarily by insects such as bees, butterflies, and beetles. Many species readily self-seed and can naturalize in favorable conditions. Seeds are small achenes, often with a pappus that aids in wind dispersal.

Ecology & cultivation

Asters thrive in well-drained soils with moderate fertility and require full sun to partial shade. They are generally hardy, tolerating frost and varying moisture conditions. Asters are valued for ornamental gardening, pollinator support, and their role in naturalized meadows and prairie restorations.

The Myth

The name Aster comes from the Ancient Greek word ἀστήρ (astḗr) which means 'star' — we'll assume that it refers to the shape of the flower head.

The genus used to encompass over 600 species, but various studies showed that the families of North America are actually a different kettle of fish. Today, the Aster family encompasses around 170 species, all but one of which are restricted to Eurasia.

It is one of the few flowers that blooms in fall — specifically during Michaelmas (29 September) — which is why there is even a rhyme in its honor!

"The Michaelmas daisies, among dead weeds, Bloom for St Michael's valorous deeds"

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