Poisonous Plant Perennial Plant For Sale In District Of Columbia

These last two compounds have been shown to have potent anti-retroviral activity without serious side effects and they are being researched in the treatment of AIDS. It fell out of favour in the nineteenth century but recent research has brought it back...

In the summer, leaves are red and clusters of small yellow flowers appear on top of the foliage, to the benefit of pollinators. 'Kodiak Red' diervilla is a native flowering shrub that can add low-maintenance color to parts of the yard where it is difficult...

They are taken both internally and externally in the treatment of syphilitic, cancerous and other foul ulcers. * The flowers and leaves are diaphoretic, diuretic and rubefacient. Caution is advised since this is a poisonous plant.

Flowers are heart-shaped and 1–2 inches (3–5 cm) long, with pink outer petals and white inner petals , hanging in a horizontal raceme . * The plant most of us think of as Bleeding Heart; extremely popular, and for good reason; each arching spike,...

* A sprawling plant unless staked, perhaps best for romping through a semi-wild border; small blue flowers in considerable numbers in midsummer; full sun or part shade, persistent once established; native to China.

Only 1-inch tall, but very fast spreading, with plenty of tiny white flowers in springtime. Very hardy and deer resistant. Easy to maintain, but keep moist during dry spells. Try these flat cushions of dense, moss-green for edging moist, shady nooks in...

Provide a well-drained soil, acid soil with partial shade during summer for the best results. A beautiful and compact selection of our native Woodland Phlox, Louisiana Blue produces large clusters of purplish-blue flowers that are held above the rich...

Ruffled deep fuschia purple falls are centered with lighter fuschia purple standards. A Dawn Stover Nifty Fifty favorite herbaceous plant! Dawn is a Research Associate at Stephen F Austin in Nacogdoches, TX and currently maintains the Mast Arboretum plant...

Award Winner with a ruffled form and lots of flower buds per stalk. Silvery blue overtones highlight this gorgeous iris. Grows 42" tall and blooms in mid-season with a spicy fragrance.

Images courtesy of North Creek Nurseries. Narrowleaf Ironweed does exceptionally well under average garden conditions provided it has good drainage. Iron Butterfly Ironweed is as tough as its name implies, even though this is a selection of a rare species,...

Solid blue color holds uniformly throughout and makes this an unforgettable standout. How much they rebloom depends on your local climatic and soil conditions as well as planting location.

Dark yellow upward facing, to 2" wide, starry cupped flowers are born in profusion atop the dark green, narrow, rush-like foliage beginning in late summer and lasting into fall. An easily grown Mexican native bulbous perennial that multiplies freely by...

Blanketed from spring to fall in clusters of flowers that open dark yellow, quickly fade through deep orange, and finally to deep red. Bandana Red Lantana makes a wonderful addition to the landscape or is compact enough to use in containers.

A very striking plant that has enjoyed great popularity. Deer resistant and for a rain garden. Grows 24'' wide. Highly variegated leaves have pink blush on new growth and in cool weather.

As the fruits become fully ripened spring foliage begins to yellow and fade away as the roots absorb all the nutrients stored in them to develop the buds of next spring. This is followed by fruit production and something of a pause in top growth with...

This durable and reliable perennial is moderately drought tolerant, deer resistant, salt tolerant, and is generally pest free. It is vigorous and floriferous enough to be used a summer annual where not cold hardy.

Nudicaule has been shown to contain the benzophenanthidine alkaloid, chelidonine . * The seed is very agreeable to the taste. They were first described by botanists in 1759. In particular, P.

Arkansas Amsonia is a stunning addition to your landscape! Magnificent perennial grows to 3' tall and 4' wide. But, that's not all -- in fall, the foliage turns to an electrifying shade of yellow.

Slight fragrance adds to the appeal. Grows 34" tall. Mid to late season. SHIPS IN FALL Honorable Mention 1998, Award of Merit 1999! Magenta streaks overlay pale colored petals.

Considered evergreen in zones 7 and warmer, the leaves become edged in burgundy in cool weather. Easy to grow in most any well-drained soil as well as drought and pest resistant. Summer Glory quickly creates a weed proof mat of rich green, lightly scalloped...

Remember, these are Hibiscus and so will enjoy a fertile soil as well as ample moisture during the growing season for the best flowering and growth. These durable and hardy Hibiscus are clump forming, slowly developing larger and larger root masses from...

Royal is the fern we recommend for southern gardens and can be grown in zones 3-10. One of the most graceful plants for shady or sunny spots in your landscape.

Most of the Tradescantia's that we enjoy in the garden today as perennials are hybrid selections of our native species often found growing in consistently moist soils at the edges of woodlands, ditches, and near bogs.

The main flowering stem is erect. * All parts of these plants are considered toxic to humans, causing severe digestive discomfort if ingested, and also skin irritation. * The plants flower from late spring to late summer, and are pollinated by butterflies...

Provide a protective mulch in winter where hardiness is questionable. This durable and reliable perennial is moderately drought tolerant, deer resistant, salt tolerant, and is generally pest free.

They can be cut back to near ground level in winter. Lantana are only second to Porterweed in our garden for their ability to attract butterflies! Lantana are loaded with flower power and normally flower continuously from late spring to frost.

* All parts of Datura plants contain dangerous levels of anticholinergic tropane alkaloids and may be fatal if ingested by humans, livestock, or pets * Datura wrightii is found in northern Mexico and the adjoining U.