February 2026

How aggressive is Swamp milkweed? Common milkweed (Asclepias syriaca) tends to be too vigorous and weedy for beds and borders. However, butterfly weed (Asclepias tuberosa) and swamp milkweed (Asclepias incarnata) are non-aggressive, attractive additions to home landscapes. Native species such as common milkweed, butterfly weed, and swamp milkweed are among the best choices.Description: Swamp milkweed […]

How big is a butterfly milkweed plant? The most famous member of our native milkweed family, and a well-known magnet for butterflies, butterfly weed prefers fast-draining, gritty soil and exposure to full sun. Blooming from early through late summer, this fragrant beauty has a deep-reaching tap root that should not be disturbed. butterfly bushes grow

What is a butterfly milkweed? Butterfly Milkweed (Asclepias tuberosa L. Butterfly weed is a member of the milkweed family (Asclepiadaceae). The genus name Asclepias is named after the Greek god of medicine Asklepios. The species name tuberose refers to the tuberous (knobby and with swellings) roots. Asclepias is a genus of herbaceous, perennial, flowering plants

How long does milkweed take to bloom? Plants are easily grown from seed, but are somewhat slow to establish and may take 2-3 years to produce flowers. Butterfly Milkweed does not transplant well due to its deep taproot, and is probably best left undisturbed once established. Technically it is a perennial, but if you run

How tall do butterfly milkweed get? Butterfly Milkweed reaches a height of around 2-3′, making it a perfect selection for a smaller garden area or a colorful, informal border. Another great Monarch host plant that also attracts many other pollinators. Female monarchs will lay eggs on all nine milkweed species, but they prefer some over

Where does sea holly grow best? Likes. Most like very free-draining soil, some even thriving in poor, dry soil, in sun. Eryngiums need plenty of sunshine and free-draining soil.Eryngium can be planted all year around when purchased grown in pots but early to mid spring are probably best for an easier transplant.Winterize Eryngium ‘Big Blue’

What is the common name for Eryngium? Sea holly. These architectural, spiny, almost sculptural perennials, some looking superficially like thistles, can make a dramatic statement in a summer border. Let them rise above low-growing plants, or mingle them among roses and taller perennials to provide a contrast in form and texture. Eryngium, commonly known as

Is sea holly difficult to grow? The sea holly is a marvelous plant in many ways-”it captivates with its unique clustered blooms and spiny-toothed leaves, is amazingly versatile, is fairly easy to grow and requires minimal upkeep. The striking flowers come in bright hues including blue, violet, green and white and bloom from mid summer

What is the common name for eryngium alpinum? Eryngium alpinum, commonly called alpine sea holly, is a somewhat coarse, stiffly-branched, taprooted, rosette-forming herbaceous perennial that typically grows on upright stems to 25-32” tall with a spread to 18” wide. Eryngium alpinum L. The alpine sea holly is a perennial plant emblematic of the Alps, known

Can Eryngium be grown in pots? Eryngium can be planted all year around when purchased grown in pots but early to mid spring are probably best for an easier transplant. Eryngium naturally dies back in autumn. The flowers will remain but their colour will fade. You can leave them in place through autumn and winter