What does Amsonia look like
Andrew Mccoy
Updated on April 05, 2026
The plant species amsonia was given the common name blue star for its soft blue, star-shaped flowers. The individual flowers are small, but they bloom in fluffy clusters and put on a lovely show for several weeks. Blue star flowers are one of the truest blues you will find in flower colors.
Does Amsonia like full sun?
Amsonia tabernaemontana is hardy in Zones 3 to 9 and is tolerant of a variety of conditions. Though most at home in partial shade and rich organic soil with good moisture retention, it is also tolerant of drought once established and will thrive in full sun and lean soils.
Is Amsonia Blue Star invasive?
There are about 20 species of Amsonia native to North America, Europe and Asia, although only three or four species are commonly cultivated. … Bluestars are herbaceous perennials with woody crowns that slowly increase in size but are not invasive.
Do you cut back Amsonia?
Plants must be cut back in either the late fall or late winter to about 8 inches from the ground. Remember to wear gloves when working with Amsonia since stems release a white sap. Though not required, cutting them back again half way to the ground after flowering will result in even fuller growth.Is Amsonia poisonous?
Amsonia is a member of the Dogbane Family (Apocynaceae). Family members like the infamous oleander typically have milky or viscous sap that can be loaded with highly toxic alkaloids. The Bluestars’ latex sap is mildly irritating and not considered to be harmful to humans.
Is Amsonia deer resistant?
The foliage of Amsonia Blue Ice will turn warm golden yellow in the fall. Its habit, flowering and fall color make it a perfect element for the landscape. Very impressive in a mass planting. Low care and deer resistant.
Is Amsonia fragrant?
They are showy plants staying for up to several weeks. They have a delicate, sweet scent.
What can I plant with Amsonia?
Amsonia Care It pairs especially well with larger leaved plants, like peonies and hosta. A classic favorite combination is blue star paired with the seed heads of oat grass. The bright yellow fall foliage is stunning next to tall sedum or purple coneflowers.When can I transplant Amsonia?
After stratifying the seeds for at least three weeks, you can slowly acclimate them to warmer temperatures. Amsonia seeds can take up to 10 weeks to sprout and young seedlings may not be ready for transplant for 20 weeks.
How do you care for Amsonia?Amsonia thrives in most gardens with little care. It is low maintenance and easy to grow. Plant it in full sun or partial shade and moist soil of average fertility. If grown in too much shade or very rich soil, its habit will be open and floppy.
Article first time published onWhere is Amsonia native to?
Amsonia is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean.
Does Amsonia attract bees?
Many insects enjoy the nectar of amsonia flowers, especially long-tongued insects such as carpenter bees, hummingbird moths, and butterflies. Ruby-throated hummingbirds are also attracted to the nectar. The range of plant sizes makes amsonia a versatile choice in the garden.
Is blue star Amsonia deer resistant?
Blue Ice is an outstanding hybrid blooming in late spring with lavender-blue flowers. Completely deer proof, the plant has attractive yellow fall foliage and grows well in compost enriched garden loam.
Does Amsonia self seed?
Deadhead to prevent self-seeding. This plant was selected as the 2006 NC Wildflower of the Year, a program managed by the North Carolina Botanical Garden with some financial support from the Garden Club of North Carolina.
Is Amsonia a host plant?
Amsonia is a member of the Dogbane Family (Apocynaceae). Most family members like the infamous oleander have milky or viscous sap that can be loaded with highly toxic alkaloids. … The adaptable coral hairstreak butterfly caterpillar, however, uses this Amsonia as a host plant.
Is Amsonia native to New England?
Amsonia tabernaemontana Walter Eastern bluestar is native to the southern and southeastern United States, and northern Mexico, but its natural range does not reach New England. It may be found on lake shores in Massachusetts, probably escaped from gardens where it is grown as an ornamental.
How do you care for a hummelo betony?
Grow ‘Hummelo’ in well-drained soil. It prefers full sun but will tolerate partial shade. Place plants 12-18″ apart. Keep well watered, as it does not tolerate drought well.
How do you plant Amsonia Blue Ice?
Amsonia thrives in most gardens with little care. It is low-maintenance, easy to grow and trouble-free. Plant it in full sun or partial shade and moist soil of average fertility. If grown in too much shade or very rich soil, its habit will be open and floppy.
How do you care for blue ice Amsonia?
- Sun Exposure. Full Sun or. Partial Shade.
- Soil Type. Normal or. Sandy or. Clay.
- Soil pH. Neutral or. Alkaline or. Acid.
- Soil Moisture. Average or. Dry or. Moist.
How do you propagate amsonia?
Amsonia hubrichtii can be propagated by seed or division. Due to irregular germination, which occurs over several weeks, division is the most reliable method of propagating this plant. For growers interested in starting amsonia from seed, sow two to three seeds per cell (128- or 72-cell plug trays work well).
Can you divide amsonia?
To divide an amsonia root ball, simply cut sections of the root ball containing the plant’s crown and stems with a clean, sharp knife or saw. Dividing plants like this may seem brutal but the cuts to the root ball actually stimulate plant growth both above and below the soil level.
Is Black Eyed Susan deer resistant?
Named for their dark brown centers peeking out of the gold or bronze petals, black-eyed susans thrive in the sun. Because its covered in course hair, deer and rabbits stay far away from it. These daisy-like blooms are perfect for a late summer or fall bouquet.
Will Amsonia grow in shade?
Amsonia Plant Care In soils that are constantly moist, Amsonia prefers full sun. Otherwise, plant it in light to partial shade. Too much shade causes the plants to sprawl or flop open.
Is Amsonia native to Maryland?
Tried and True Native Plant Selections for the Mid-Atlantic *In the Mid-Atlantic Region, it is native to the southern Piedmont and inner Coastal Plan in VA and to limited areas of MD, DE, NJ, and PA.
What is Blue Star Creeper?
Blue star creeper (Isotoma fluviatilis) is a herbaceous perennial in the Campanulaceae (or bluebell) family that is native to eastern Australia. It is characterized by short, dark green foliage and delicate, pale blue to purple flowers that grow upwards on slender stalks.
How do you winterize Amsonia?
If planted in the right conditions it has few pests. Winterizing: Cut back any stems that remain 2-3 inches above the ground after the first hard frost or two (when the ground freezes). You can also use straw or pile some leaves over the plants.
Does Amsonia bloom?
When to Prune Bluestar Amsonia Under the appropriate conditions, Amsonia will come back year after year, and responsible pruning can keep it growing well.
What does a blue flower symbolize?
A blue flower (German: Blaue Blume) was a central symbol of inspiration for the Romanticism movement, and remains an enduring motif in Western art today. It stands for desire, love, and the metaphysical striving for the infinite and unreachable. It symbolizes hope and the beauty of things.
How much does a Blue Star plant cost?
Soil TypeClay, Loam, SandSpacing1′ – 2’Hardiness Zones3, 4, 5, 6, 7, 8Root TypeFibrousBenefitsPollinators
Is Amsonia native to Pennsylvania?
Amsonia tabernaemontana is native to the lower 48 United States and is naturally found in Pennsylvania. … Webster’s dictionary defines indigenous as”existing, growing, or produced naturally in a region or country..”
Is Eastern Bluestar invasive?
This beauty is also low maintenance, disease and insect resistant, making this eastern U.S. native a first-rate garden plant. Clump forming, Blue Star grows up to 24-36 in. tall and wide (60-90 cm). It will slowly increase in size over time without becoming invasive.