Excellent garden-tolerant smaller Manzanita. New growth is blushed pink as are the winter flowers. Settling to soft gray, this dense rounded plant achieves about 3′ x 3′ in 7 years. The bark becomes reddish and shaggy with age. Full sun and very well drained soil with no supplemental water once established. Gray foliage is organized symmetrically around the thick stems. This is a good scale for smaller gardens and a handsome shrub at all times. Provide good air circulation in an uncrowded environment.Found, selected and named by Bart O’Brien. This has been a fantastic shrub in our climate and we’re proud to offer it. Long lived.
Plant Type: Shrub
Shrubs are the backbone of Pacific Northwest Gardens. We’re able to grow an incredible amount from all over the world. Evergreen to deciduous the choices are vast. We focus on mostly (but not all) low water species and many native western species. Shrubs are often much less thirsty than other plants and live for a long time if properly sited. They can sport amazing foliage or showy flowers. From Manzanita to Ceanothus and even Grevilleas nothing makes a garden look more western. Our choice of shrubs is from years of experience growing them in our own gardens.
The best treatment leads to success
Treat all shrubs well when you plant. Dig a large hole and apply ample mulch and water to establish well. Do not let the shrub dry out completely until you are sure it is established and make a point to mulch each shrub. This is particularly important if you are creating a hedge or massing shrubs. Treating them all consistently well is the difference between continuity and chaos.
Pruning shrubs 101
The most daunting thing about growing shrubs is pruning. I try to include information about pruning each individual plant – but there are several rules that I adhere to when I prune a shrub that I am unfamiliar with. First, if you do not know the shrub let it bloom. Take note if it blooms on established wood from the previous season or if it grows and then blooms- an indication that it blooms on new wood. If it blooms on wood from the previous season – or ‘old wood’ then you can prune it directly AFTER blooming is done. That way you have less chance of eliminating bloom for the coming season and if it blooms on new wood you are safe too. Plants that bloom on new wood can be pruned in early spring some examples are Lagerstromia, Abelia, Indigofera. Once you understand this it makes pruning MUCH less intimidating. Make sure that you have very sharp pruners and it hurts nothing to sterilize them first. 1 TBS bleach to a bucket of water and a quick dip. Pruning can introduce disease so this is prudent.
New compact plants preclude pruning
Over the eons and more so lately nursery people have been selecting shrubs for more compact habits as well as vibrant bloom. Take advantage of these slower and smaller growing tendencies in the garden. Choosing the right size plant saves work in the future and eliminates the need to prune at all.
Many shrubs will morph into trees over time
In time many shrubs can pose as small trees and this should always be figured into a design. It is far easier and more natural to let a shrub become arboreal than the tortured look and continual work of making it small. Some shrubs that go on to become trees in time are Osmanthus (many) Phillyrea, Camellias, Manzanita (many). Leptospermum. Many reach tree like proportions in a decade or so. They may have their lower limbs removed to reveal shady planting space beneath and to accentuate the view of the bark which can be quite showy. They may also be trained to single leader to produce compact appropriately sized trees for courtyards and smaller gardens for a more formal appearance.
Topiary- a precise art
Topiary is an art that we dabble in at Xera. More than just torturing plants it is a process that takes a bit of planning and plant choice. It introduces a little discipline to the gardener in the form of regular maintenance and the effects are worth the effort. For the best effects and adaptability we use the tried and true forms of myrtle. They’ve been the subject of topiary for eons and we know why. They take a lot of pruning with no harm. They live long lives in containers are drought adapted and we choose the cold hardiest cultivars. The flowers which are adorable are in perfect scale with the leaves, Topiaries can introduce small amounts of formality in a garden and we love the way this plays in larger wild landscapes.
Rely on our soils own fertility
Shrubs in our climate and soils for the most part do not need fertilizer. In fact, over time I’ve seen more ill effects of overfertilization than I have seen benefits. Most often the plant is not getting enough water and the solution is a layer of mulch and a more consistent irrigation program. Often very drought adapted shrubs will react to added water in a dramatic way- Ceanothus, Grevilleas, Leptospermums, Arctostaphylos are genus’ that respond to water in a big way- in fact they react as if having been fertilized with no improvement to the soil at all and they explode in growth. Therefore, we recommend no supplemental irrigation for these genera when established but if they are slow to take off don’t be afraid to water, Irrigation requirements are in each description as well.
Shrubs- furniture for the garden
We need to shift our definition of shrubs. For too long they’ve been the tortured class of plants. The recent trend of grasses mixes excellently with shrubs but not if they are pruned into submission. Take the time to pick the correct plant for the site and be realistic. Plants grow fast in Oregon.
Climate Adapted Plants for Gardeners in the PNW
Interesting and very handsome compact Manzanita that retains what appears to be juvenile foliage. Each rounded leaf has small indentations that give the plant a finer mein. Silver/ gray foliage is handsome all the time and the leaves clasp the stems in a symmetrical way. In January to April clusters of pinkish/ white urn shaped flowers appear at the branch tips. Not the heaviest blooming Manzanita. The mature trunks and stems revert to a solid mahogany glossy finish with time. Dense growing to 4′ x 4′ in 6 years- larger in time. Beautiful, architectural shrub for full sun and dry summer conditions. No supplemental water when established. Rounded good looking plant for hillsides, parking strips, dry shrub borders. This species is native to mid to higher elevations of the Bay area and has performed wonderfully in our gardens. A naturally dense growing plant.
Arctostaphylos bakeri ‘Louis Edmonds’
One of the most picturesque Manzanitas, this selection bears lovely gray-green leaves that are nearly circular, held perpendicular to the stems. The bark is one of the best of all species and selections, deep burgundy/purple and smooth. Vivid pink flowers that appear in late winter to spring transform into small russet red apple-shaped fruits. To 6’ tall and 4’ wide in 5 years. Requires well drained soil with little additional irrigation when established. Cold hardy. Good looking year round. Good gray foliage adds contrasts to other Manzanitas and is resistant to black spot. Very upright growing cultivar that can fit in skinnier locales. Either way limit pruning to tip pruning after flowering to control size and remove leafless shaded branches from the base. Adaptable to garden conditions- if you make sure to skip any irrigation during the summer. Brilliant pink flowers are among the most vivid in the genus.
Arctostaphylos canescens var. sonomensis
Our very, very favorite Manzanita and one of the very rare ones in the wild. Occurs on two ridges in northern California- Horse Mountain was one of them and Greg’s dad just happened to have a cabin there. Not an easy Manzanita to cultivate. Low, dense, spreading, very gray shrub to 3′ x 5′ wide in time. The bark is a great glossy mahogany and the winter/spring flowers are white tinted pink. Russet berries are quickly consumed by wild life. Spectacular shrub for full sun, average to poor, well-drained soil and absolutely no summer water. Loathes the combination of water and heat. Neglect is its friend and you will reap great rewards with this beautiful shrub by strictly ignoring it once it is established. Ultra cold hardy- hailing from over 4500′ in elevation and recommended for cold gardens. This species is native to southern Oregon, and though not technically native to Oregon this is our favorite form of this species. Not the easiest to propagate so quantities are often limited. Absolutely NO summer water. Ever. Forms rounded balls of soft silver. Dynamic on slopes. Easily prone to death from soil pathogens if watered in summer. Absolute neglect.
Arctostaphylos columbiana ‘Parkdale East’
This form of our native Hairy Manzanita was found quite far east of the Cascade crest and offers greater hardiness to cold. Unfortunately, it has the same characteristics of the species- it is unpredictable. To 4′ x 7′ with sage gray leaves and white to pink-tinted flowers in spring. Very well-drained soils in an open position with NO summer water when established. Dramatic smooth mahogany bark is an outstanding feature. This is the variety that is best suited to life in the Columbia River Gorge and possibly eastern Oregon in sheltered sites. It should easily tolerate -15ºF. Best with total neglect and full sun. Russet berries follow the flowers into summer and autumn- always consumed by wildlife. Very limited quantities. Oregon native plant.
Xera Plants Introduction
Arctostaphylos columbiana ‘Wolf Creek’
Our native Hairy Manzanita is one of the most widespread species in the PNW. Unfortunately, its not the most reliable and can be kind of hard to grow. It will grow happily for years and then suddenly decline. No explanation.This can be avoided by strictly avoiding all irrigation once established. Large-growing shrub with gray green leaves, the telltale hairy leaf petioles and white flowers in spring. Russet berries follow. Its best attribute is its smooth exfoliating mahogany bark. And in time you can remove the tired lower branches to reveal it as well as improve air circulation. To 8′ x 8′ very quickly in average, well-drained soil. No summer water and little intervention from the gardener. Wild areas, dry hillsides. This form we selected from the southern Willamette Valley. It occurs in specific sites around the Valley and is common at the coast /coast range as well as the Cascades. Its populations are most stable on steep rocky slopes and sandy substrates at the coast where plants live longer in impoverished situations. During the warm interstadial (8000-4000 yr BP) when our climate was a bit milder but with a much more pronounced summer drought it was much more widespread- once found in the city limits of Portland at two sites those have been usurped by development. Excellent performance in hot dry urban sites. Also, courtesy of a study by OSU on ornamental Arctostaphylos for the Willamette Valley we have combined that information with our own 20 years of growing this genus with what are easier to grow Manzanitas. I would confine this native form to wild areas and remediation. Oregon native plant.
Xera Plants Introduction.
Arctostaphylos densiflora ‘Type Form’
This is the species that is an important parent in some of the most popular hybrid Manzanitas. From a very restricted range in Sonoma County CA this lovely Manzanita sports gray green sharp tipped foliage and wonderful glossy mahogany bark. Moderately fast growing evergreen shrub to 7′ x 7′. In winter white tinted pink urn shaped flowers occur in conspicuous clusters. Very pretty. Orange tinted glossy berries follow but are quickly consumed by wildlife. Easy shrub for full sun to very light shade and everage, un-amended native soil. Avoid anywhere that there is standing water in winter. Excellent on slopes and somewhat formal in appearance as opposed to many species. Very rare in commerce. Excellent shrub that is beautiful year round. No summer water when established. This species is critically endangered in Sonoma County, CA. In fact it is possible due to extensive fires recently that this plant is functionally extinct in the wild. Handsome shrub.
This handsome low growing and compact manzanita has great performance in our climate. Glossy mid-green foliage clothes a dense growing plant to 2′ x 4′. Admirable low ground cover as a massed subject but individual plants have glossy mahogany trunks that develop character with age. Masses of small white urn shaped flowers appear in late winter to early spring. Healthy looking at all times and not prone to black spot. Takes reflected heat well and even tolerates a light amount of shade. No water necessary once established, but it will take light water on slopes. Great small scale for small gardens. In time you can lift the plant up by pruning to reveal the small trunks. Long lived. One of the finest smaller varieties. Central CA coast.
Arctostaphylos hookeri ‘Wayside’
At the North Willamette Experimental Station in Wilsonville where OSU conducted a trial of scores of Arctostaphylos species and cultivars this special ground cover Manzanita has been consistently one of the best performers. Deep green pointed leaves are held perpendicular to the sun on cinnamon red stems. In time it forms glossy red bark that is very showy. Low and dense growing to 2′ tall and 6′ wide. Excellent bank cover or ground cover in any soil that is not amended or boggy. Profuse white flowers in spring. First rate weed suppressing plant for hellstrips, rock gardens, dry borders. Excellent appearance year round. No summer water. Take advantage of its low dense growth to cover and suppress weeds. Wonderful plant for baking hot locations. Very easy to grow.
Arctostaphylos manzanita ‘St. Helena’
A tree type manzanita that has been a stellar performer in our gardens. Rapid growth to 10′ x 10′ in 8 years. Broad, rounded sage gray-green foliage is held perpendicular to the cinnamon red stems to avoid moisture loss (no flat leaves baking in the sun). In winter to early spring, clusters of white flowers are effective and visited heavily by pollinators. Russet red berries follow but do not last long because of animal predation. Open habit with time that exposes the muscular, smooth mahogany trunks. (Its thought the bark exfoliates to deter moss and lichen growth). This is a very hardy drought adapted west coast native shrub to small tree for average, well drained soils and NO summer irrigation. Full sun and room to spread. Avoid rich, amended soils- leaner conditions produce a much hardier and longer-lived plant. Very similar in scale to ‘Austin Griffiths’ but leaves are grayer and flowers are distinctly white. Great garden performance. Good air circulation.
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