Winter Flowers

Mahonia eurybracteata – Soft Caress Mahonia

Broadleaf evergreen shrub with bamboo-like leaves. Fast growing. Height 4 feet spreading to 3-4 feet with a rounded shape. Blooms mid-fall through mid-winter with yellow flowers forming in upright clusters in the center of the foliage. Flowers are long lasting, lightly fragrant and produce silvery-blue berries. Plant in partial shade and in a sheltered area; it’s only hardy to 0°F. USDA zones 7-11.

Fall Color

Asters (Asteraceae)
Perennial. Asters come in a variety of colors and heights, and can provide a late-season source of pollen for bees and other pollinators. Plant in full sun. USDA All Zones.

 

Chrysanthemums
Perennial. Varieties can be daisy-like, pompons, spoons, singles, decorative, anemones and standard. Flowers range in colors from white, off-white, yellow, gold, bronze, red, burgundy, pink, lavender and purple. Plant in full sun. USDA Zones 3-9 , hardiness varies with cultivar.

Pansies (Viola tricolor)
Annual. Pansies come in a wide range of colors and are a perfect flower for the winter landscape. This plant is durable and winter-hardy. Plant in full sun or partial shade. USDA Zones 4-8.

Russian Sage (Perovskia atriplicifolia)
Herbaceous Perennial. Woody multi-stemmed plant 3 to 4 foot tall with silver-grayish leaves. Small tubular flowers bloom on tall spires in blue or lavender. Drought tolerant. Plant in full sun, it likes heat! USDA All Zones.

Heavenly Bamboo (Nadina domestica)
Evergreen or semi-deciduous shrub. Leaves turn fiery crimson in the winter and has shiny red berries. Plant in sun or shade, but leaves color better in the sun. USDA Zones 4-10.


Witch Hazel (Corylopsis)
Deciduous shrub. For winter flowers, the Witch Hazel shrubs like those at the entrance to Lithia Park, put on a glorious display in Jan/Feb. Slow growing 8 to 20 feet tall, and as wide. Fragrant flowers bloom on bare branches. Flowers in yellow, bronze, orange, red-orange, copper-red or red. Plant in full sun or part shade, protect from wind. USDA Zones 4-8.

Burning Bush (Euonymus Alatus)
Deciduous shrub. Slow growing to 15 feet tall, and as wide; it can be pruned to be maintained as a shrub. Dwarf varieties grow 6 to 8 ft. Inconspicuous flowers in the spring. Leaves turn a brilliant flaming red in the fall. Plant in full sun. USDA Zone 4-9

Japanese Barberry(Berberis thunbergii)
Deciduous shrub. Grows 4-6 feet tall with equal spread if not sheared. Flowers appear in May. Fruits are red oblong berries persisting on the plant into winter. Leaves turn attractive shades of red and orange in the fall. Plant in full sun. USDA Zones 4-8

Note: Japanese Barberry has been labeled an invasive species on the East Coast.
Please read the following for possible alternatives for Japanese Barberry:
http://perrysperennials.info/articles/barberry.html

Hypericum Mystical Orange (Hypericum inodorum)
Deciduous shrub. Grows multi-stemmed upright spreading branches. Height 3 feet. Produces bright yellow flowers early spring to mid-summer. Forms striking orange berries which last through the fall. The berries have become a mainstay in floral arrangements. Plant in full sun. USDA Zones 5-9.

Other Mystical series: Mystical Beauty™/ pink berries, Mystical Red Star™/red berries, Mystical Black™ / black berries.

Flowering Kale (Brassica oleracea)
Annual, cool season. Attractive ruffled foliage in variations of green & white, pinks, purples, and reds. Height 18 inches. Grows well in pots, group with other winter-hardy flowers. Plant in full sun or partial shade. USDA All zones.

Calendulas
Annual. Calendulas are a very prolific, easily grown flower. Also known as “Pot Marigolds”. They can provide blooms late in the fall and early winter.

Snapdragon are also an easy to grow annual, and while most varieties are early summer bloomers, they often bloom again in cooler fall weather and provide blooms into winter.

Hardy Cyclamen
Perennial. A showy small autumn flowering hardy type of Cyclamen
USDA zones 5-7.

Helleborus (Christmas Rose) is also winter bloomers. USDA zones 4-9.
Both Hardy Cyclamen and Helleborus prefer a shady spot in the garden.

Berried bushes make a splash of color when planted in pots and one that comes to mind is the Beautyberry (Callicarpa), although be aware it will out grow its pot quickly. Plant in full sun or partial sun. USDA zones 6-10.

There are more, but this should get you thinking about fall color and winter flowers!

Gena Goddard
Mary Ann Wallace
Horticulture Committee

For more winter flower suggestions read AGC Article, “Mid-Winter Madness” :
https://ashlandorgardenclub.org//2011/02/mid-winter-madness.html

Happy Saint Patrick’s Day

May the Luck of the Irish be with You…..Lucky Shamrocks!

Irish folklore tells that in the 5th century Saint Patrick used the shamrock to explain the Trinity to the Druids. The word shamrock is derived from the Celtic word, “trefoil”, three-leafed, or “little clover”. Trifolium repens is the small white clover that is found in lawns and is used as a green manure cover crop. The Irish consider this to be the true shamrock, and is not the same shamrocks sold in nurseries for Saint Patrick’s Day.

Nowadays, the shamrocks sold for St. Patrick’s Day are members of the Oxalidaceae family. Oxalis are bulbous fibrous- rooted perennials which readily multiply, the genus has over 500 varieties and are native to South Africa and South America. Oxalis plants have photonastic movement which means they respond to light, so on a cloudy day and at night their leaves fold down. Their delicate clover-like leaves range in color from soft green, dark green, purple or a variegated mixture of these colors. Flowers come in a variety of colors: white, cream, yellow, pink, purple or red. The most common Oxalis Shamrocks sold for St. Patrick’s Day are:

Oxalis regnelli (Lucky Shamrock):
Exposure: Indirect sun, light shade
Hardiness: Zones 6-10, anywhere indoors
Height: 6″-8″
Foliage Color: Green
Flower Color: White

Oxalis triangularis (Purple Shamrock):
Exposure: Indirect sun, light shade
Hardiness: Zones 6-10, anywhere indoors
Height: 7″-10″
Foliage Color: Purple
Flower Color: White to light pink

Oxalis deppei (Iron Cross Shamrock):
Exposure: Indirect sun, light shade
Hardiness: Zones 8-10, anywhere indoors
Height: 10″-12″
Foliage Color: Soft Green with purple cross-shaped markings
Flower Color: Rosy pink flowers

Outdoor Care: Oxalis regnelli and Oxalis triangularis are hardy in zones 6-10. There are hardier varieties that can be grown outdoors as a ground cover. These plants are invasive and considered a weed in some areas. Many people grow them as houseplants to maintain control. Pots can be set outdoors in the summer then brought indoors in the fall before frost. Plant shamrocks in 2 parts peat moss to 1 part loam to 1 part sand and grow in bright indirect sunlight. While growing fertilize weekly with a balanced fertilizer. Shamrocks require a dormant period, so let them rest when they start dying back. Restrict all watering and fertilizing. Let the leaves die back naturally and remove them only after they have all turned brown. Let the plant stay dormant for 3 to 4 weeks, then start watering and fertilizing again.

Indoor care: Keep plant in a well-lit location (east or west window) away from hot and cold drafts at temperatures of 60-70F during the day and 55-65F at night. They should be kept barely moist at all times and not allowed to stand in water as that will cause root rot. Fertilize every 2 -4 weeks with a houseplant fertilizer. After bloom, if the plant dies back, allow it to go dormant for 1-3 months. The corms should be kept cool and dry. After dormancy, repot and or divide the corms (optional). When signs of new growth emerge, begin to water, fertilize and move to a sunny spot. For most indoor-grown shamrocks this dormant period occurs 2 to 3 times a year.

Mid-Winter Madness

The English writer Beverley Nichols wrote in his book Down the Garden Path, “We are in the depths of winter….my first winter at the cottage…and the first winter when I went mad.” Isn’t this the feeling all gardeners have in the middle of winter when snow blankets our landscape and we stare out our windows into our gardens dreaming of vibrant multicolored flowers overflowing in our flower beds, the sweet scent of flowers filling our noses, and the sun warming our backs, as we weed.
Mr. Nichols poetically expresses a gardener’s dilemma in winter time when he writes, “ The average gardener, in the cold dark days of December and January, sits by his fire, turning over the pages of seed catalogs, wondering what he should sow for the spring.”

Does this sound familiar?

He continues writing, “If he goes out into his garden at all, it is only for the sake of exercise. He puts on a coat, stamps up and down the frozen path, hardly deigns to glance at the black empty beds, turns in again”. He says after his first winter, when he went mad, he declared he would have flowers in the winter time, real flowers, to get him through the dark cold days of winter.His friends, and neighbors, told him this desire for winter flowers was insane, he stated, “perhaps it was”, but flowers he would have.

The following are a few of the winter flowers he grew to get him through until spring.

Winter Flowers

Helleborus niger……. Christmas rose

The Christmas rose is a traditional cottage garden favorite. It bears its pure white flowers (which fades to pink) in the depths of winter. They should be planted in partial shade, preferably under deciduous trees, which gives them winter sunlight. Plant in fertile, well-draining moist soil and protect them from strong winter winds. Height 8” USDA Hardiness Zones 3 to 8

Galanthus nivalis……Common Snowdrops

The common snowdrop looks like three drops of milk hanging from a stem. It is a bulbous plant in the Amaryllis family. Most flower in winter, before the vernal equinox (March 21st in the N. Hemisphere), but certain species flower in early spring and late autumn. Some snowdrop species are threatened in their wild habitats, and in most countries it is now illegal to collect bulbs from the wild. Good for mass plantings.
Height: less than 6″ USDA Hardiness Zones 3 to 8

 

Galanthus elwesii…Giant Snowdrop

Giant clear white fragrant flowers with predominant green inner segments Blooms 6 weeks earlier than the common snowdrop. Woodland plant. Performs best in the shade and in rich well-drained soil. Height: 12” USDA Hardiness Zones 3 to 8

Jasminum nudiflorum…..Winter Jasmine

Winter Jasmine is known to be one of the earliest blooming plants in the landscape. The 1″-wide yellow blooms open in January to March prior to the leaves but, unlike most jasmines, are not fragrant. The trailing branches root where they contact bare soil. Fill in areas if you like or support with a trellis. Plant in full sun to partial sun, in well-drained soils. Height 15’ USDA Hardiness Zones 6 to 10

Hamamelis mollis……Chinese Witch hazel

This ornamental deciduous shrub is known for its strongly scented flowers. It flowers in late January or early February and produces spider-like flowers which are long lasting. Plant in full sun to partial shade in moist fertile acidic soils. Height 10-12 feet (slow growing) USDA Hardiness Zones 5 to 8

 

 

Lonopsidium acaule…False diamond flower (aka: violet cress)

Violet cress is a low growing annual plant with tiny pale lilac flowers appearing in early spring smelling like honey. It is Ideal for rock walls and edging plants. They need partial to deep shade with moist well-drained soil. Violet cress has naturalized in California through self-seeding, but they are not native to the U.S.; the USDA considers it an escaped weed!
Height 3-4” USDA Hardiness Zone: 3 to 9

Eranthis….….Winter aconite

Winter aconite i s a member of the butter-cup family. All parts of this plant are poisonous, although its acrid taste m akes poisoning a low risk. Winter aconite blooms in late January or early February and blankets the ground with small, sunny, yellow blooms. Plant in well drained hum us-rich soil. This plant dies down completely after spring. It’s a good companion with snowdrops. Self seeds.
Height 8” USDA Hardiness Zone: 4 to 9
Eranthis – “A butter cup field in January. That is what the aconite will do for you…”, Beverley Nichols, Down the Garden Path.

Chimonanthus fragans……Wintersweet

Hard to find old-fashioned deciduous shrub, but worth the search. The buds form in the fall and grow larger with each warm winter’s day. It can take three to five years to reach bloom stage, but it’s attractive in all seasons with tapered leaves on arching branches, which turn clear yellow in the fall. Easy to grow. Plant in sun or part shade and where you can walk by and enjoy its perfume.
Height 8-10’ USDA Hardiness Zone: 7 to 9

“If they (Wintersweet) are cut in bud, they lasted (in a vase), with the discreet assistance of a tablet of aspirin,…. nearly a month. Their perfume was as sweet and delicate as anything you could desire.” Beverley Nichols, Down the Garden Path.

 

Crocus imperati…..Early crocus

Lilac flowers with outside of outer petals buff, marked with dark purple. A reliable bloomer. Blooms in December or January. Plant in well drained soil, in the sun. Height 6” USDA Hardiness zone: 3 to 8

 

Crocus sieberis…….Snow crocus

A small, very early spring blooming, crocus which naturalizes easily and is ideal for rock gardens, under trees and shrubs, borders, and large drifts. Colors vary from white, blue, mauve, purple, having areas of white, yellow, or orange in the throat. Plant in well drained soil.
Height 3-4” USDA Hardiness Zone: 3 to 8

Corylopsis Spicata……Spike Winterhazel

Deciduous shrub with open, bushy, upright, spreading, picturesque branches. Flowers are clear yellow in 1 to 2″ drooping clusters blooms in later winter and early spring. Fragrant. New leaf growth is dark purple and matures to deep blue-green. Plant in sun to partial shade. Do not over water. Height 6-8’ USDA Hardiness Zone: 6 to 8

 

 

Daphne meszerum – February Daphne

February Daphne is a deciduous to semi-evergreen shrub. Vibrant lilac-purple, neon pink or white flowers bloom on naked twigs in February and have a deliciously potent fragrance . It has thin soft green leaves in the summer followed by brilliant scarlet berries in September. Unlike other Daphnes, D. meszerum likes more sun and summer irrigation. Plant in well drained porous soil. Height 3-4’ USDA Hardiness Zone:5 to 8

“…learn this by heart: “The Daphne mezereum loves it roots in the shade and its head in the sun….” Beverley Nichols, Down the Garden Path

Daphne odora- Winter Daphne

Winter Daphne is a handsome evergreen plant with powerful fragrant flowers. Pink to deep red flowers displayed in nosegay-clusters at the end of its branches. Blooms from February through April. Daphne odora needs air around its roots so plant in humus-rich semi-porous soil. Prefers mid-afternoon shade. Height: 4’ USDA Hardiness Zone: 4 to 10, 12, 14-24

Lonicera fragrantissima …..Winter Honeysuckle

Winter Honeysuckle is a deciduous shrub, in the nor thern states. Its creamy-white flowers are borne on naked twigs in February and produce a sweet lemony fragrance. Budded branches will bloom in doors for winter bouquets. Height 8-10’ USDA Hardiness Zone: 5 to 9

Please note: The U.S. Forrest Service listed Lonicera fragrantissima as a persistent invasive threat to native habitats, especially in the southern states region.

Sternbergia lutea…Winter Daffodil (aka: Fall daffodil)

Winter daffodils have vibrant yellow, crocus-like blooms. They require a sunny location with well-drained, humus-rich soil and wind protection. The bulb can develop bulb rot if planted in too moist of an area. It produces crocus-like leaves after flowering, which lasts through the winter. These bulbs are touted as hardy bulbs but they are native to warmer winter regions so they are really semi-hardy because they can be injured at temperatures below 28°F. Need winter protection: plant in pots then move indoors, or into a greenhouse, for the winter. Note: Do not plant in the drip line of trees. Height 6-10” USDA Hardiness Zone:5 to 9

Sternbergia lutea – “…though its petals may be frozen with impunity, and though it will stand any amount of wind…it hates being dribbled upon.” Beverley Nichols, Down the Garden Path

Petasites fragrans….Winter Heliotrope

Winter heliotrope has lilac to pink flowers that smells like vanilla. It’s a garden-escaped wildflower due to seed propagation, difficult to control spreading. It flowers November through to February. Grows in warm climates. Height 6-8” USDA Hardiness Zone: 9 to 10

Iris stylosa …Winter Iris

This little beardless dwarf iris is sometimes called the Algerian iris. It’s lavender-blue flowers has a lemony-vanilla aroma. Planting them against a sunny wall will lessen their exposure to winter cold and encourage early blooming. Plant in well drained soil and do not water in the summer when dormant. Height 6-9” USDA Hardiness Zone: 4 to 9

*Another late-winter Iris: Iris reticulate: Blooms in mid-February in shades of blue & purple. Height 3”-6”

Forsythia intermedia…..Forsythia

A deciduous shrub with upright spreading branches. Vigorous grower. Blooms in early March though April with very showy yellow blooms lasting 2 to 3 weeks. Plant in full sun to partial shade. It is very adaptable to poor soils, but prefers moist, well-drained soils. Plant in full sun. Height 8-10’ USDA Hardiness Zone: 4 to 8

 

Erica carnea…..Winter Heath

A dwarf evergreen shrub native to the European Alps which persist even under the snow. It often blooms at Christmas (“Winter Beauty”). Flowers are borne individually on the stem in masses of bell-shaped blossoms. Colors range from creamy white, rich pink, to deep ruby red (“ Ruby Glow”). Plant in well drained humus-rich soil. It needs partial shade in hotter areas. Spreads to 3 feet, so give it room. Prune yearly to prevent “legginess”.
Height 12-18” USDA Hardiness Zone: 2 to 10

“They are adorable, these clumps of winter heather. Actually they seem to welcome the snow, for it enhances their sweet complexions.” Beverley Nichols, Down the Garden Path

By: Carlotta Lucas

November Horticulture Report by Gena and Mary Anne

The 2010 November Horticulture Report was conducted at Southern Oregon Nursery (SOS) and Ray’s Garden Center (RAYS) by Gena Goddard and Mary Anne Wallace. They report:

Shrubs good for fall color:

  • Stag horn sumac (SOS)
  • Common Snowball (Viburnum) (SOS)
  • Eastern Snowball (Viburnum) (RAYS) $24.99
  • Smoke tree, Royal Purple (SOS) $42.99
  • Nandina (many varieties/sizes)
  • Filamentosa (SOS)) $18.99
  • Dwarf, fire power (SOS) $7.99 (leaves turn very red)
  • Gulf Stream (tall) (RAYS) $39.99
  • “Royal Princess” (RAYS) $24.99
  • Dwarf, Siena Sunrise (RAYS) $24.99
  • Barberry (many varieties/sizes)
  • Crimson pygmy (RAYS) $19.99
  • Lime glow (RAYS) $29.99
  • Royal cloak (RAYS) $24.99
  • Helmond pillar (RAYS) $39.99
  • Yellow leaf (RAYS) $8.99/gal
  • Mahonia-orange flame (RAYS)
  • Arthur menzies (SOS) $13.99 larger, softer more spread out leaf
  • Sweet spire, Itea Little Henry’s Garnet (RAYS) $24.00 shrub good for pots as it stays small (18-24”) full sun


Shrubs good for winter interest, either as accents or evergreens:

  • Boxwood (SOS) from $7.99 can be pruned to topiary shapes
  • Windmill Palm (0-10 hardy) needs sandy soil, well drained, tone Palm fertilizer in spring (SOS) $32.99
  • Holly – Berry Magic (SOS) grows to 10’, does not need mate plant to produce berries. Plants have berries placed along stem.
  • Red twig dogwood (red and yellow stem) (SOS) (RAYS) $18.99
  • Contorted Filbert , wonderful twisted branches $87.99
  • Viburnum davidii, dark green leaves all winter (SOS)
  • Azealas and Rhododendrons
  • Furnlvalls daughter (SOS) $9.99
  • Barberry William Penn (very thorny)
  • False holly, Osmanthus goshiki
  • Wintergreen, ground cover 6” tall (RAYS) $9.99/gal $3.99/4”

Garden tips

  • Do not mulch your peonies, but cut and remove all old leaves and stems
  • Cut back butterfly bush to about 18”
  • Cut back roses now to waist, the later in winter to knee
  • Do not cut back lilac, wait until it blooms next spring
  • Fertilize in-ground bulbs
  • Fall Bloomers
  • Toad Lily (trycyrtis hirta)
  • Japanese anemone
  • Dahlias-tuberose

NOTES:
Wait until either after the first frost OR the middle of November to cut back dahlias.
The greenery needs to feed the tubers, which must harden off after the stems die back.
DO mulch heavily over dahlias after that: Gena mulches, places black plastic over that, more mulch over the top AND a 5 gallon bucket on top!

DO NOT MULCH over peonies after you cut back the frosted stems! They need to sit high and dry and need to freeze to produce!