Perennials

Amsonia hubrichtii

Amsonia hubrichtii

Amsonia hubrichtii: 90 cm high and 90 cm spread, sun to partial shade. Blue flowers in May-June. Zone 4; choose soil compatible with its moisture needs.

Format

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Exposure
Sun to partial shade
Life cycle
Hardy perennial
Hardiness
Zone 4

Discover the plant

Common nameAmsonia hubrichtii
FamilyApocynaceae
GenusAmsonia
Specieshubrichtii
TypeHardy perennial
Botanical nameAmsonia hubrichtii

The silhouette of Amsonia hubrichtii (Amsonia hubrichtii) adds texture to garden compositions. The foliage offers shades of green, which can be highlighted among different textures. The usual flowering period is May-June. At maturity, expect 90 cm in height and 90 cm in width, which suggests its use in the middle of flowerbeds and in group plantings.

To plant Amsonia hubrichtii, look for the following exposure: sun to partial shade and suitable soil (drained garden soil, retaining moderate moisture during establishment). Support the rooting of Amsonia hubrichtii with deep watering, then check the moisture before watering again. Adjust the frequency to rain and heat; avoid small daily additions to already moist soil. Maintain 90 cm as a general spacing between plants; this helps preserve their shape and allows access for care. The indicated hardiness level is zone 4, to be assessed according to your garden's conditions.

To maintain the interest of Amsonia hubrichtii after the flowers, keep the healthy foliage after blooming to allow the plant to continue its growth. Keep the crown clear and observe new growth before removing damaged parts. For associations, consider campanulas, perennial geraniums, and daylilies in varieties with similar needs. The flowering (May-June) and the 90 cm spread will serve as benchmarks for distributing other plants around this plant.

Amsonie hubrichtii — Amsonia hubrichtii

Planting guide

From planting to establishment.

Spacing / density 35.4 inches
Best planting time Spring after the thaw or early autumn, allowing the roots to establish themselves before the severe cold sets in.
Propagation Division of clumps; root cuttings; stem cuttings. Sowing does not guarantee the fidelity of a named cultivar.
Growing method
Amsonia hubrichtii: Spring after the thaw, or early autumn, allowing time for roots to establish before severe cold. Support the root development of Amsonia hubrichtii with deep watering, then check for moisture before watering again. Adjust frequency based on rain and heat; avoid small daily applications to already damp soil. Keep the root collar clear and observe regrowth before removing damaged parts.

Soil and care

The right care,at the right time.

Soil pH

neutral; general indication of the botanical group

Care level

Routine maintenance

Watering

Support the establishment of *Amsonia hubrichtii* with deep waterings, then check the moisture before watering again. Adjust the frequency according to rainfall and heat; avoid small daily applications on already moist soil.

Soil type

Drained garden soil, retaining moderate moisture during installation

Fertilization

Fertilizer for flowering

Moisture

Moderate humidity; water according to the actual state of the root ball

Seasonal care

Arkansas blue star: keep the foliage healthy after flowering to allow the plant to continue growing. During its flowering period (May-June), also look out for damaged stems and neighboring plants that might obscure the clump.

Container growing

A garden,within reach.

Recommended pot size

A stable, perforated container, significantly wider than the root ball; size to be adapted to the sold format and adult development.
To grow Amsonia hubrichtii in a container, choose a stable pot with drainage holes, suitable for the root ball and its future spread (90 cm). Water must drain freely after each watering; check the root ball more often than if it were planted in the ground. Plan to protect the container in winter depending on your climate.
Amsonie hubrichtii

Bloom and dimensions

Its place,in your garden.

Mature height

3 feet (91.5 cm)

Width / spread

3 feet (91.5 cm)

Flower color

Blue

Foliage color

Green

Foliage type

Lapsed

Growth rate

Slow

Growth habit

Bushy

Fragrance

Not documented for this selection

Bloom period

May-June
Amsonie hubrichtii — Amsonia hubrichtii

Garden associations

In goodcompany.

Companion plants

Suggested companion plants for Amsonia hubrichtii: bellflowers, perennial geraniums, daylilies. Choose varieties that tolerate sun to partial shade and comparable moisture; allow each clump enough space to reach its mature size.

Plants to avoid

Around Amsonia hubrichtii, especially avoid neighbors that would cover its leaves or strongly compete with its root ball. Compatibility in terms of light, water, and spread takes precedence over a list of so-called enemy plants.

Frequently asked questions

Your questions,answered.

Where to plant Arkansas bluestar?
Provide sun to partial shade and suitable soil (drained garden soil, maintaining moderate moisture during establishment). Keep the root collar clear and observe recovery before removing damaged parts.
What space should be reserved for Amsonia hubrichtii?
Expect a height and width of about 90 cm at maturity. Approximately 90 cm between centers, to be adjusted according to the actual development of the clump. This size is suitable for use in the middle of a flower bed and group plantings.
When does Amsonia hubrichtii bloom?
The period indicated is May-June. The flower color palette is blue. The exact date and duration depend on the climate, the season, and when the plant was installed.
How to water and care for Amsonia hubrichtii?
Encourage the establishment of Amsonia hubrichtii with deep watering, then check the moisture level before rewatering. Adjust the frequency according to rainfall and heat; avoid small daily waterings on already moist soil. Maintain healthy foliage after flowering to allow the plant to continue growing.
Can *Amsonia hubrichtii* be grown in pots?
To try Amsonia hubrichtii in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (90 cm). Water must drain freely after each watering; check the root ball more often than you would for plants in the ground. Plan to protect the container in winter depending on your climate.

Wildlife and pets

Life,around your plants.