Arkansas Amsonia

Amsonia hubrichtii

$17.00

1 Gallon | Hardiness Zones 4-9

This distinctive species of Blue Star native to the South Central U.S. We believe this now popular plant was first made available by Woodlanders. It is a strong perennial forming a large dense clump of upright stems clothed with very narrow leaves which turn bright yellow in fall. The terminal flower clusters are composed of pale blue star shaped blossoms. A great plant for the sunny border with well-drained soil.

Photos courtesy of Missouri Botanical Gardens

Pickup available at Aiken Nursery

Usually ready in 2-4 days

PLANT DETAILS

Hardiness Zones: 4 - 9

Soil: Well-drained

Sun: Full Sun and Part Shade

Seasonal Behavior: Perennial

Growth Rate: Moderate

Height at Maturity: 3 - 4 Feet

Spread at Maturity: 3 - 4 Feet

Flower Structure: Amsonia hubrichtii, commonly known as Arkansas blue star, produces star-shaped flowers. These delicate blooms have five pale blue petals, creating a soft and airy appearance. The flowers are small, about 1/2 inch across, and are arranged in loose clusters called terminal panicles at the ends of the stems.

Blooming Season: The flowering period for Amsonia hubrichtii typically occurs in late spring to early summer, usually from late April to early June, depending on the climate and growing conditions.

Fragrance: The flowers of Amsonia hubrichtii are not known for their fragrance; they are primarily appreciated for their ornamental value and delicate blue color.

Visual Impact: The blue flowers create a striking contrast against the fine-textured, bright green foliage. This plant is particularly valued for its floral display in spring and its exceptional fall foliage, which turns a brilliant golden-yellow.

Light Requirements: Prefers full sun to partial shade; full sun encourages the best flower display and autumn color.

Soil Requirements: Thrives in well-draining soil; adaptable to various soil types, including sandy and loamy soils, with a slightly acidic to neutral pH.

Watering: Requires regular watering, especially during the establishment period; once established, it is drought-tolerant but performs best with consistent moisture.

Temperature and Humidity: Hardy in USDA zones 5-9, tolerating a range of temperatures and performing well in both humid and dry climates.

Fertilization: Generally does not require heavy fertilization; a light application of compost or a balanced fertilizer in early spring can support growth.

Pruning: Cut back to the ground in late winter to early spring to promote vigorous growth; may require occasional trimming after flowering to maintain shape and prevent flopping.

Pests and Problems: Generally pest-free and disease-resistant; ensure good air circulation to prevent any potential fungal issues.

Suitable Environment: Ideal for borders, native plant gardens, and mass plantings; its fine-textured foliage and striking fall color make it an excellent ornamental plant.

By following these care instructions, you can maintain a healthy and attractive Amsonia hubrichtii, commonly known as Arkansas blue star, known for its beautiful blue flowers and golden autumn foliage.

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