Herbaceous plants white flowers

crocus photo by Linda McMahonCORVALLIS, Ore. – Flowering plants that bloom in the winter burst into color in the midst of rain and gray weather, proving that there can always be a time when something in the garden is abloom.

Most people are familiar with late-winter bloomers like forsythia and crocus, which flower in early February, and white or pink winter-blooming heaths. To further enhance winter months, OSU Extension horticulturist Linda McMahan suggests planting less-common trees, shrubs and herbaceous plants for all eye levels of the garden.

"You might have to look carefully for a few of these plants – some are available only at specialty nurseries – but they are well worth the search, " she said.

Some of the boldest, such as witch hazel, are considered a small tree or large shrub. Its light-to-dark yellow flowers typically bloom in December, January or February in Oregon. Two species – American witch hazel (H. virginiana) and Ozark witch hazel (H. vernalis) – are natives, while H. japonica and H. mollis are from Asia.

"Perhaps the most popular is the Chinese witch hazel (H. mollis), ” McMahan said. "Its bright yellow flowers brighten any winter day and it also has fall coloration."

Hybrid forms also are available, such as H. x intermedia. McMahan's advice is to plant witch hazel in full or filtered sunlight and provide summer irrigation for best success. They are hardy in USDA Zones 5 or higher.

For blooms in December and January, look for another small tree or large shrub, the Camellia sasanqua. Unlike the more familiar Japanese camellias, the sasanqua camellia blooms earlier and grows in an open form. However, like its more common relative, it has been bred for many colorful flowers, from pure white to pinks and reds. This species is evergreen and hardy to USDA Zone 7; it prefers rich soil with regular summer irrigation.

Another large shrub called wintersweet is known botanically as Chimonanthus praecox. As the name suggests, this January bloomer produces a powerful and sweet fragrance, McMahan said, and flowers are waxy and light-to-medium yellow. Wintersweet grows to USDA Zone 6, making it suitable for much of western Oregon and Washington. It is deciduous, bush-like because it grows from multiple trunks, and prefers sun to light shade and regular watering in well-drained soil.

"For fragrance on a smaller scale, try sweetbox in the genus Sarcocca, " McMahan said. Several species and hybrids are available, but the most common is sold as S humilis or S. confusa. "This compact evergreen shrub from China makes a bold statement. The flowers are white and fragrance amazing.


What do you grow...and what are your experiences

2003-02-02 18:17:34 by microscopic-love

Currently I am growing a few species of Grevillea (from large bushy varieties to the creeping kinds - about 5 species total) all are doing fine and thriving. And have full sun location.
I'm also growing Westeringia, Eriostemon and Correa.
the westeringia are doing well, establishing themselves (haven't flowered much yet), the correa were slow to take off..but are healthy and thriving now.
the eriostemon (one of the greatest plants i've ever grown) is a pineapple-y scented hardy herbaceous upright bush plant that is covered with small white flowers most of the year


Anise

2007-10-08 10:30:13 by spicefo

Anise or Aniseed, less commonly anís (stressed on the second syllable) (Pimpinella anisum), is a flowering plant in the family Apiaceae, native to the eastern Mediterranean region and southwest Asia. It is a herbaceous annual plant growing to 1m tall. The leaves at the base of the plant are simple, 2-5 cm long and shallowly lobed, while leaves higher on the stems are feathery pinnate, divided into numerous leaflets. The flowers are white, 3 mm diameter, produced in dense umbels. The fruit is an oblong dry schizocarp, 3-5 mm long.
Pimpinella species are used as food plants by the larvae of some Lepidoptera species, including the lime-speck pug and wormwood pug.


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DALY: Use care when planting around septic drainfields  — Gwinnettdailypost.com
Shallow rooted annual and perennial herbaceous plants can be planted closer to the drain fields since they do not have invasive roots. Turfgrass can be grown over the drain field and is beneficial since it helps hold the soil in place.

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