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Some Native Shrubs to Consider for Your Landscape



Many of the “cast iron” shrubs that no one can kill are now deemed invasive: barberry, burning bush, multiflora rose and bush honeysuckle. And many others, while not invasive, have been overused: lilacs, rhododendrons and spirea, for example are nice but not too exciting. Today I’d like to share some nice native shrubs that support wildlife and add beauty to your landscape. These are arranged here roughly in order of season of interest (for flowers, bark, berries)
 
Spicebush (Lindera benzoin): I grew up chewing on the twigs and leaves of this small native with a distinctive flavor that I like. It grows in dry shade and has yellow flowers early in the spring, and red berries in the fall.  But to get berries you have both males and female plants (and they are not sexed the way winterberries are). The leaves can be used to make a spicy tea. It tolerates some drought, but prefers moist rich soil.
 

Calycanthus or sweetshrub is a shade-loving shrub I love

Common sweetshrub (Calycanthus floridus): This can be a fussy plant – I have moved mine twice to find just the right amount of sun. I have it growing under a tall, sparse pear tree and right now it is loaded with wine-red blossoms, each a bit like a miniature peony. Allegedly fragrant, mine is not, so buy in bloom and sniff first if fragrance is important to you. Reference books generally say it does best in full sun with moist soil, but mine burned in the sun, even with wet soil. Native to the south, but hardy to Zone 4.

 

Pagoda dogwood showing fall color and interesting branching patterns

Pagoda dogwood (Cornus alternifolia): This is a native that often plants itself – with the help of birds- in semi-shaded places. It’s structure is fabulous – it often has 2-feet of stem between horizontal branches arranged in tiers. It prefers part shade, but I do have it in full sun growing out of a high rock wall. It grows 15 to 25 feet tall. Birds love the berries (drupes, actually) in August. White, subtle flowers in June. Not often sold in nurseries, but try it if you can find it. Avoid the variegated-leafed variety, it is not nearly as tough a plant and often fails to thrive

 
Blueberries: So many gardeners avoid blueberries because “the birds will just eat them”. Well, why not plant some for them? They have lovely white blossoms in June, nice fruit for feeding the birds and lovely red foliage in the fall. The trick to success? Test your soil, and then add sulfur or a fertilizer-containing sulfur designed for hollies and such. You need the soil pH to be between 4.5 and 5.5 to get good fruit production. And who knows? You might get a few berries yourself – even without netting. (I avoid netting as birds get tangled in it and die).
 

Sweetspire grows alongside my stream and has nice fall color

Virginia sweetspire (Itea virginica): New to me, I just bought one at Spring Ledge Farm in New London, NH when I saw one in bloom. It was gorgeous, and although rated as Zone 5 plant and I’m a little colder than that some years, I had to try it. It has bottlebrush white flowers in June and red fall foliage. Best of all, for me, it does well alongside water or in wet places in full sun to part shade – and I have plenty of that. It stays 3 to 4-feet tall, but can spread by root. Full sun to full shade.

 
Smooth hydrangea (H. arborescens): Along with oak leafed hydrangea, this is a native that grows wild in the forest as an understory shrub. It is stoloniferous (it spreads by roots) and only gets to be about three feet tall, but can form large clumps. I recently read an article about these on research done that cites a named variety called ‘Haas Halo’ that is said to be the best of all hydrangeas for pollinators. Fortunately, I had already purchased some ones last fall. It is, however, attractive to deer. They got eaten last fall, but came back from the roots vigorously this spring.
 
Rosebay rhododendron (R. maximum): This is another understory shrub, but can get quite large. I like it because it grows in shade or sun, and blooms (for me) in July. It is native to Appalachia, and large specimens dug in the wild are often sold in the nursery business. It can have either white or pink blossoms. Rhododendron State Park in Fitzwilliam, NH is worth a visit in July – there are 16 acres of rhododendrons and mountain laurel.
 
Summersweet (Clethra alnifolia): This is an August bloomer, fragrant and handsome. It blooms well in light to moderate shade, and thrives in moist soils (where full sun is tolerated). The bottlebrush flowers are upright and range from white to pink to red. Many selections are sold as named varieties.
 
Red-twigged dogwood (Cornus sericea): Common in the wet places in the wild and in roadside ditches. Its best attribute is the bright red bark in winter of first or second-year stems. To keep it looking bright, cut back older stems each year. It can grow new stems up to five-feet tall in one year!
 
Winterberry (Ilex verticillata): Common in nurseries, these bear bright red berries in winter that are great in wreaths – and for hungry birds. In the wild they grow in standing water, but once established they will do fine in most gardens. Buy a male cultivar for every 5 or so females.
 
So visit your local nursery, talk to someone knowledgeable, and buy some new shrubs. Ask for native shrubs that are good for our birds and pollinators. There are plenty of others not mentioned here that are nice, too!
 
Henry is the author or four gardening books, and is available as a speaker to libraries and garden clubs. Reach him at henry.homeyer@comcast.net.

Trees and Shrubs for the Shade



I grew up in a small town in rural Connecticut. Behind the house there was a brook and a hardwood forest with a high canopy of old maples that created a cool space for spending hot summer days. My favorite understory tree was a small, bushy tree that had very fragrant leaves and stems, which I decided must be witch hazel, as the barber splashed witch hazel on my neck after each haircut, and it was vaguely the same. I frequently chewed on the leaves and green twigs in lieu of the chewing gum that was forbidden to me.

 

This summer I discovered the name of that plant: spicebush (Lindera benzoin). One of my gardening clients had requested one for her garden, and as soon as I crushed a leaf, I was transported back 60 years. I knew it immediately. Most winters my part of New Hampshire drop to minus 25 degrees Fahrenheit, so any plant that will survive here must be rated for Zone 4 (Minus 20 to minus 30). I checked my favorite tree book (Michael Dirr’s Manual of Woody Landscape Plants), and sure enough, spicebush is rated for Zone 4. I will get my own as soon as I find the right place on my property to plant it.

 

From Dirr’s book I learned that spicebush can get to be up to 12 feet tall and wide, and is in the laurel family. There are 80 species of Lindera, both deciduous and evergreen (L. benzoin is deciduous). Apparently it blooms in early spring but the yellow blossoms are only one fifth of an inch across, so not overwhelming (I have no memory of it blooming). Fall leaf color is yellow. Dirr’s book says it does well in moist, well drained soils in full sun or half shade, though in my experience it will do well in dry shade in open woodlands. Dirr says spicebush is not often found in nurseries, but E.C. Brown’s Nursery in Thetford, VT has several nice ones.

 

Another woodland plant that I would like to try is leatherwood (Dirca palustris). Like spicebush, this is a native shrub that will grow in shady areas but this one prefers moist to wet soil – and I have plenty of that. Apparently it only gets to be 3 to 6 feet tall and wide, and is more open and spreading in shade than in sun. It is has small yellow flowers that bloom very early in the spring, well before the leaves emerge. Native Americans used the bark to make bow strings, fish lines and in the manufacture of baskets. Tough stuff.

 

Calycanthus-or-sweetshrub

Calycanthus-or-sweetshrub

Three years ago I planted a sweetshrub or Carolina allspice (Calycanthus florida). The first 2 years I grew it in full sun with deep, rich moist soil. Both years the leaves yellowed – as if the sun were too strong and bleached them out. So last fall I moved it into a grove of old wild apples that provide full shade, and it seems to be doing much better. It is blooming now, and has put on considerable new growth.

 

Sweetshrub grows to be 6 to 9 feet tall with a 6 to 12 foot spread. Some varieties have very fragrant flowers, but mine is not. Dirr’s book suggests buying the shrub is in bloom in early summer, as the fragrance varies from plant to plant. It is adaptable to acid or alkaline soils, and is hardy to Zone 4.

 

Mountain laurel (Kalmia latifolia) is another fabulous shrub that will grow in deep shade (or even full sun), and I have grown it these past 20 years or so, even though I am on the northern edge of where it is successful. Mine produces delicate three-quarter inch diameter flowers, cups of white with pink veins. After cold winters I don’t always get flowers. There are cultivars with flowers in white to rose, and everything in between. Definitely buy when blooming. It does best in acidic soil that is cool and lightly moist. I have seen it growing abundantly in the wild at Sleeping Giant State Park in Hamden Connecticut, where there is a high, dry, open hardwood forest.

 

Climbing hydrangea on barn wall

Climbing hydrangea on barn wall

Of all the shade-growing woody plants, the most dramatic on my property is the climbing hydrangea (Hydrangea anomala subsp. petiolaris). I have vines that completely cover the north side of my barn – and that only get a few hours of sun each day. It is in bloom now, with flower corymbs (flat topped inflorescences) that have both fertile and sterile (showy) blossoms and are 6 to 10 inches across.

 

Climbing hydrangea is slow to get established – mine took 6 years – but once it begins to grow, it quickly covers a surface. It will attach itself to stone or brick, but needs to be strapped onto wood surfaces, at least at first. Mine has grown through the cracks on the barn and is now self-supporting. Its vines can grow 60 feet or more, and has support arms for its flowers that reach straight out from the barn that are up to 3 feet long. It is truly dramatic.

 

So don’t despair if your property is mostly in the shade. There are these plants, and lots more, that will amaze and delight you.

 

Henry Homeyer is the author of 4 gardening books. His Web site is www.Gardening-Guy.com.