Changing the Way We Garden

Changing the Way We Garden

Every once in a while, a new plant comes along and changes the way we garden. Case in point, Weigela florida (pronounced: Why-gel-ah). New introductions are forcing landscapers and gardeners to reassess its value and its how its used.

Long considered an overly large, old fashioned shrub of one dimension, newly introduced cultivars have extended its season of color and opened up new landscape applications.

The first major shift came about eight years ago when Herman Geers developed and introduced Wine & Roses Weigela, Weigela florida ‘Alexandra’ pp#10,772. Wine & Roses Weigela, with its dark burgundy foliage, proved that Weigela had ornamental value beyond its two to three week spring bloom time. While Geers developed the plant as an ornamental cut branch for the European cut flower market, it also made a big impact on the North American garden. It sparked a resurgence in the popularity or Weigela, as people began to use it in ways never considered before. Most radically, perennial gardeners began to realize that this plant was right at home in the perennial garden; a perfect complement to Rudbeckia, Perovskia, Echinops and a host of other pink, blue or silver herbaceous plants. Additionally, it found advocates that used the plant in mixed decorative containers and yes, of course, in the cut flower garden. No one ever dreamed of using Weigela ‘Red Prince’ or any of the older cultivars in such untraditional ways.

The next paradigm shift came about six years ago with the introduction of Midnight Wine Weigela, Weigela florida ‘Elvera’ pp#12,217, another Herman Geers development with dark burgundy leaves. At a mature size of 12 to 18 inches, as opposed to the typical 5 to 8' height of the species, this Weigela opened up even more garden applications. Before this plant, no one their right mind would have considered using Weigela as a bedding plant, edging plant or as a ground cover, but that is what’s happening today. In the spring of 2006, My Monet Weigela, Weigela florida ‘Verweig’ pp#16,824, joins Midnight Wine in this new class of miniature cultivars. This much anticipated gem sports brightly colored, tricolor leaves of cream, green and pink. Each of these minis can be used in place of such as coleus, silver mound Artemisia, creeping phlox, candy tuft and so on. You get the idea. A shrub that was recently seen only as a farmhouse relic is now perfectly at home in an annual display, perennial bed, a decorative patio container or for that matter a window box.

Plants like this change everything, and they keep gardening fun. As a plant hunter, I am always thinking about new directions in plant breeding and how they will change the way we garden. I am always on the hunt for plants that make gardening more rewarding or solve a problem. As residential lots get smaller and smaller, and as time becomes more precious, people will have less room in their garden for large, short season shrubs that require a lot of care.

New plants, particularly new flowering shrubs, are changing the way we garden.

Add the Plant Hunter to your website

It's easy to add The Plant Hunter to your website. It's an easy way to provide your audience with intersting free content.

You can also get your Plant Hunter posts via email.

Click here to learn more

Food, Drink and Plant Hunting

For most Americans the thought of eating puffer fish or raw sea urchin is unthinkable, if not down right disgusting. I can honestly say from experience that dried cuttlefish is impossible to chew and that fried tripe is nearly impossible to keep down. But meals, especially meals in foreign lands and cultures are so much more than just a way to fill the tank. Meals are about people, cultures, friendships, relationships, communication and building trust. Food is one of the most enjoyable, and at times the most challenging, aspects of being a plant hunter. Food and drink is an intrinsic part of plant hunting.


It should come as no surprise that the ministry of Jesus was so closely associated with food and drink. He changed water into wine, fed thousands with a few fish and loaves, and dined with his closest friends in the upper room. But have your ever thought about what message it would have sent if Peter or one of the other disciples refused to eat the food Jesus offered? What if Andrew had complained about the wine at last supper? Refusing to share or even appreciate the gift of a meal is a slap in the face of your host, even if it’s barbequed sea eel and potato wine.


No matter where I’ve traveled, I have always eaten what my host has offered and I was always appreciative. In Mexico, I discovered that my host spent a week away from his family doing odd jobs just so he could buy the meat for our meal. While in Japan, a group of local nurserymen dug deep in their pockets to take us to one of the best and most expensive restaurants in Tokyo. In Korea, grower after grower bought the same expensive meal despite that fact that the price could have feed their families for a week. What message would I have sent to these people if I had refused their gift of a meal?


One of my most memorable meals was with a small grower along the Northern coast of France. I had often heard that the French people are rude, but I have found the complete opposite to be true. This particular nurseryman was so thrilled that we had travel so far and had taken time to visit his humble nursery. He insisted on popping open a bottle of Champagne. We had not known each other 30 minutes earlier, but there we sat, is his home talking about plants, the nursery business and life as we shared the bottle and food. I do not normally drink so early in the day but who am I to refuse this mans gift?


Over the course of that meal we learned that his home had been occupied by Germans for four years during WWII. He parents had been taken off to concentration camps, while he and his brother were forced to run the farm and feed the German soldiers.


But on this day he was feeding Americans, and for him that was reason to celebrate. Soon after D-day this man’s home was liberated by American troops. In the the four months that followed, he and his brother joyfully shared their home and meals with these young American boys. And now, nearly 60 year later we sat in the same home and shared food and drink. Together we ate, drank and laughed and yes even cried as he told us that his father and Mother never returned from the camps. All of this - over a few hours and a meal.


Perhaps now you can see why I never complain about the food when I travel. Meals are not so much about the food, but rather about the people whom you share them with. Food is about friendships, relationships and sharing. It is also one of the most joyous aspects of being human.


Subscribe to The Plant Hunter by Email

Pinky Winky - Hydrangea paniculata

Hydrangea paniculata ‘DVPpinky’ pp# 16,166

Late this summer we hosted two different groups that toured our nursery. One group was in conjunction with the Northern Plant Conference, and the other was the Eastern Region of the International Plant Propagators Society. In total we had over 400 keen plants people touring our display garden and based on the comments I heard the plant that sparked the most interest was Pinky Winky™ Hydrangea.

Pinky Winky is the creation of Dr. Johan Van Huylenbroeek, a well know ornamental plant breeder within the Department of Plant Genetics and Breeding at Flemish Institute for Agriculture. He developed this new variety by treating seedlings of Hydrangea paniculata ‘Pink Diamond’ with the chemical mutagen colchicine. In amongst the resulting seedlings emerged a superb new Hydrangea that had just recently come to market in North America.

What makes Pinky Winky so special and unique is its white and pink two-toned flower heads that appear in mid-summer. The large, 16 inch long flower heads (panicles) emerge white and the flowers at the base of the panicle quickly turn pink. The flowering is indeterminate, meaning they continue to push new white flowers from the tip of the panicle while the older flowers transform to rich pink. As an added bonus the flower heads are held upright on strong stems and don’t droop like the ever popular Pee Gee variety. The plant also exhibits dark green foliage which makes for a nice backdrop for its beautiful flowers. Like all paniculata hydrangeas Pinky Winky blooms regardless of climate, soil, pH or pruning. Use it as a specimen plant or to create a spectacular flowering hedge.

I know, I know - Pinky Winky is a strange name for such a beautiful plant but it’s a name you can’t forget. I ask Johan about the name and he told me it was derived from a character on a children’s television program called Teletubbies!

Despite the name, Pinky Winky Hydrangea will find a wide following with adults. It is distinct, beautiful and easy to grow.

“Do we really need another Hydrangea?” is the question that I often here from growers. The same is said of daylilies, Hosta, and roses. My answer is a resounding yes for all. There is always room for a better plant. Knock Out rose and Stella de Oro both prove my case. As far as Hydrangea go, Pinky Winky is distinct and superior to Pink Diamond, Tardiva, Ruby, Burgundy Lace or any other variety grown for large pink panicles. In my opinion Pinky Winky, Limelight, Little Lamb and Quick Fire are the best of their class and each is unique and deserves greater use in out landscapes and gardens. There are dozens of Hydrangea paniculata cultivars that deserve the label of heirloom because there is no good reason to grow or sell them unless you’re a collector. This list of obsolete varieties includes ‘Grandiflora’ aka Pee Gee, Tardiva, Kyushu, Burgundy Lace, Brussels Lace, Chantilly Lace, Praecox, Floribunda, Pee Wee, Dharuma, Unique and Pink Diamond. While many of these plants are very good, there are no longer the best.

It is my hope that I live long enough to see the day when growers stop offering Pee Gee. The plant gives the species a bad name, and that’s a real shame! It’s a shame because few plants offer as much a Hydrangea paniculata. It’s long blooming, reliable, showy, and easy to grow, makes a great cut flower both fresh and dry, is adaptable to difficult soils, and grows from Fargo to Fayetteville without missing a beat.

The time is right for Pinky Winky.

Heptacodium - A plant with a bright future!

Heptacodium miconioides, (seven-son flower) is a little known member of the honeysuckle family that is certain to become a household name. Although its name may be slightly unattractive, it has all the ornamental features necessary to be a prized, useful and well accepted landscape plant. Besides being rare, what makes this large shrub or small tree so desirable is that it shines at a time of the year when most other plants are at their worst. Seven-son flower blooms in the late summer - early autumn. Its 10-15 foot arching frame is covered with creamy white, fragrant flowers to create a unique and memorable show. And just when you think that this plant has reached its pinnacle of ornamentation, the flowers fade and are replaced by stunning cherry red, flower-like sepals. It's as if the darn thing is blooming again, but in a different color! This unique floral display provides effective and welcome garden color from late August to until mid-November. Although Heptacodium has little to offer in fall foliage color, it does have attractive brown exfoliating bark that provides appreciated winter interest.

Native to the Zhejiang Province of China, Heptacodium was first introduced to the west by the famous plant explorer E. H. Wilson. For some reason the plant remained obscure until 1980 when the plant was reintroduced from China and promoted to the nursery trade by the Arnold Arboretum of Harvard. In a relatively short period of time the nursery community embraced the plant and it has now made it available to the public. While Heptacodium may still hard to find in the Midwest, it has become all the rage in the East and enthusiasm for the plant is spreading west. I have seen stunning mature plants in Massachusetts, Ohio and Minnesota but only in botanical gardens. The availability of Heptacodium will follow demand as more people are fortunate enough to see this plant in its prime and discover this little know treasure.

From a gardener’s perspective, this plant gets even better. It is a strong growing plant with few insect of disease problems. Its large, narrow heart-shaped leaves are a clean dark green without a blemish. While Heptacodium is easy to grow, the only word of caution, is that pruning is a necessary task in creating a neat full bodied plant, be it a shrub or a tree. This is especially true when the plant is young. Pruning should be done during the growing season to create more breaks. For mature plants in the landscape, pruning should be reserved for either late fall-early winter or in the early spring. The flower buds form in spring and slowly mature over the summer, so an untimely pruning would certainly sacrifice autumn bloom.

Gardeners will appreciate Heptacodium as easy to culture. It is adaptable to most any soil type especially once established. The best flower display will be obtained by planting in full both sun, but Heptacodium can also be effectively used in partial shade situations. This is a very versatile plant that can be grown and used as either a large shrub or as a small depending how you prune it and train it. As a small tree, it would make a excellent patio or specimen tree up near or around the house. Use it like you would use a crabapple or a hawthorn As a shrub is can be used as a specimen, or it can be massed on larger sites much like is done with Viburnum dentatum or Viburnum lantana.

If you've seen Heptacodium in its glory, then you know how good this plant can be, and that this plant has a great future. If you've never seen the plant than take my word - Heptacodium is a great plant!

'Firefly' adds a new dimension to Climbing Hydrangea

A few years back, I gave a Hydrangea talk at Swarthmore College and I told the audience that there were no cultivars of Climbing Hydrangea (Hydrangea anomela ssp. petiolaris). This is no longer the case for there are now four new cultivars available in North America. The most intriguing of these is a new variegated form called ‘Firefly’. Ironically this plant was discovered by Horticulturist Dan Benarcik just thirty miles from Swarthmore.

Firefly is quite typical for climbing hydrangea when it comes to flowers and form. It has a beautiful display of lacy white blooms in early summer, and like the species it is a great choice for training up a tall tree. It takes a few years for climbing hydrangea to establish itself and to start climbing, but once it does it can grow about two feet per year. It is well worth the wait for few things are as beautiful as a tall tree covered with climbing hydrangea, especially when in full bloom. What makes ‘Firefly’ special is its attractive lime-yellow leaf margin that gives the vine an additional season of interest. Its foliage display is at its best in spring when the buds break and the variegation is at its brightest. The vine literally glows at this time of year. As the season progresses the variegation becomes less pronounced and in the autumn, long after the flowers have faded ‘Firefly’ looks just like your standard climbing hydrangea.

As a plant hunter, one of my goals is to find new plants that have additional seasons of interest. This plant certainly fits the bill. Garden space is a precious commodity and personally I have limited room for plants that provide only a few weeks of bloom and nothing more. Plants should look good when they’re not in bloom and foliage is the attribute that I look to first to provide interest. The flowers should be the icing on the cake.

Diamond Frost Euphorbia

Normally I would dismiss an annual that has flowers as small as Diamond Frost, but growing this plant has made me a raving fan. I think you too will become a fan of this plant once you’ve grown it.

Diamond Frost is an easy to grow annual that performs in most any climate, and has was won awards across the country to prove it. It is a low billowing plant that reaches about 20 inches in height and width. The small white flowers are so abundant that the cumulative mass of flowers creates a beautiful show akin to Baby’s Breath. What is most remarkable is that this plant bloomed from the day I planted it until the day I had a heavy frost in my garden. It is a blooming machine. Its soft white flowers seem to compliment any plant in proximity, making it very versatile.

It is great planted in a large solid block or mixed with other annuals, perennials or shrubs. It is superb in mixed containers or hanging baskets. Space the plants about a foot apart and you will get a full display within weeks.

Diamond Frost is heat and drought tolerant, and requires no more care than planting and the occasional watering. There is no need to dead-head or to groom this gem.