The Boston Ivy 2015

fall color boston ivy (1)
A two story high concrete block wall  of a storage rental business sits right about on the west lot line of the Detroit Garden Works property. It goes on and on, and sky high, for 120 feet. When the building went up some 15 years ago, I was unhappy about that 2400 square feet of beige concrete looming over us; that industrial glare was relentless. The front door to the shop is on the east side of the building. Our front door is on the side of the building. Quirky, yes. The history of the building determined the location of our front door. We warmed up to the prospect of a main door on the side. We had the idea that the walk down the long side of the shop to our front door would be a walk through a garden, and create anticipation for the experience to come. That giant wall was threatening to do in our idea to create a garden of our outdoor space.

fall color boston ivy (2)The friendly neighbor proved amenable to me planting Boston ivy on that wall. I knew of no other plant that would grip that wall for dear life, and grow up to cover a wall of this size.  I planted a 1 gallon pot of parthenocissus tricuspidata veitchii every 12 feet- 10 plants in all. The wall swallowed them up. But I knew if I kept them watered, and had some patience, these 10 plants would clothe that entire wall in green.

the Boston Ivy 022Some 15 years later, that wall is solidly covered with Boston ivy. We don’t always remember to put the water from the hose to the roots of those 10 plants. I have never seen them protest.  All summer long, we have 2400 square feet of lustrous green.  I would also like to point out that there has been no damage to the wall whatsoever over all of those years.  Their gripping mechanism is strong enough to support lateral branches in excess of an inch in diameter, but they have not harmed the masonry. But better than that glossy green all summer is the fall color. The fall color of Boston ivy alone is enough to warrant its inclusion in the landscape.

IMG_6255Rob took some pictures for me from the roof of our building. The vines do not color up evenly, or consistently.  The 2400 square feet in October is a tapestry ranging from green to olive, from peach to yellow, with dashes of flame red and cream. That wall is a fall garden story of astonishing size that goes on for weeks.  From start to finish, the Boston Ivy fall display spans 60 days.

IMG_6254Rob’s view from the roof tells the entire story. Though we have on occasion had a lateral branch detached in high winds, the gap fills in within a blink of an eye. Boston ivy is a more than willing grower. Willing, in our case, is a big plus. Should you grow it on a house with windows, be prepared to prune, and prune again. This giant concrete wall is a garden. How these vines have covered this wall is as delightful as it is miraculous. The most miraculous moment comes that one week in the fall when this wall is fiery gorgeous.

the Boston Ivy 027This concrete wall is spectacular right now, in a way I never really imagined.  I just took the first step. I put the plants in the ground, and watered. The ivy did the rest. This simple story is like any story waiting to be written about a landscape.  Plant some trees. Plant some shrubs. Plant some perennials, and a raft of bulbs.  Look after them. What grows will delight you.

October 29 2015 116the wall in late OctoberOctober 29 2015 115Our gloriette looks so beautiful with the Boston Ivy behind it. The fall is a favorite season of mine. There is so much color that comes courtesy of nature. How I love this late season moment.  How appropriate that the end of the gardening season is attended by so much fiery color and fan fare.

fall color boston ivy (3)The Boston ivy leaves will fade, and eventually fall. Their fruits are their brilliantly blue. The first frost will blacken these fruits.  But for now, I am enjoying all the color.  I have written about the Boston ivy every year for the 7 years I have been writing this blog.  Interested in how these vines looked in 2009?  Click on!

http://deborahsilver.com/parthenocissus-tricuspidata/

Planting A Tree

the tricolor beech (2)The very first tree I ever planted was a gingko.  My Mom and I, with not much discussion or ceremony, planted 10 seeds in small plastic pots. As I was probably 7 years old, it never occurred to me to ask where she got the seed. As she was a fairly reserved parent, there was no presentation about how to successfully grow trees from seed, or why growing a tree from a seed was a worthwhile and satisfying use of one’s time. Or that trees in general are one of the great wonders of the natural world.  I do remember that only one seed germinated.  That pot was buried in the rose garden for several years, until that gingko was about 15″ tall.  I watched her dig up a patch of grass in the side yard. In the process of getting the gingko out of the pot, I knocked all the soil off of the roots. I was horrified-I thought I had killed it.  She just scooped up that bareroot tree, and planted it in one fell swoop-the entire planting took but seconds. I would be in charge of the water to that tree for years to come. Once I turned 13, I had to be sent to the tree to water.  Once I turned 16, my attitude shifted. There was a lot of satisfaction to watching that tree grow-and grow it did.  By the time I went to college, it was a proper tree, a young but substantial element of our suburban landscape.

the tricolor beech (3)My Mom moved while I was in college, closer to the school where she taught.  I would eventually move near her.  That gingko tree was on its own, on the other side of town. If I ever had cause to drive from the west to the east side, I would go to see the tree.  It would always be there, just a little bit larger than the last trip. Gingkos are slow growers. Several weeks after she died, I went to see the tree. It was a comfort to me, that 45 year old tree, living and growing. It was such a beautiful tree, all on its own, set in the lawn. 10 years after she died, I went to see the tree, but it was gone. There was no sign it had ever been there. The shock and the grief  was unsettling. Every gardener has a hefty respect and affection for trees.

the tricolor beech (4)My second tree planting was in my twenties.  I was visiting a friend in Kalamazoo.  We were both gardeners, so a good part of every visit was consumed visiting nurseries. One nursery had a tall adolescent tulip tree in an undersized pot, with one green and orange “tulip” blooming at the top.  I had to have that tree. The leaf shape was so beautiful!  I drove that tree home in my pickup truck, and hauled it all over my property until I decided where to plant it. I chose a place where it would be free to grow as big as it could.  I was unaware that liriodendron are tap rooted, and very difficult to transplant.  I stripped the sod from the spot, dug down deep, and amended the heavy clay soil, and put that tree in the ground. I kept it watered without any coaching.  Miraculously, it took hold.  There were never any more tulips as long as I lived there. When I moved 15 years later, it was just beginning to put on weight.  I know better now than to go back.  I prefer to believe it is still there, growing taller and bigger every year.

the tricolor beech (5)I was working for Al Goldner, at Goldner Walsh Nursery, when I had occasion to plant my third tree. He had a dawn redwood that had lost its leader. It was header for the compost pile. When I asked him if I could take it home, he only said that the tree would never be right without its leader.  Plant it I did, in a swampy spot where it grew every bit of 18 inches a year.  Its shape was definitely asymmetrical, but it had a strange and atypical beauty that enchanted me. My fourth tree was a London Plane that had not been sold, but needed to go in the ground. Al gave that tree to me as well.  It was so large that it took me days to dig the hole. I needed every friend I had to help me roll it in the hole.  It took years before that tree took hold, and started to grow.  My property was almost 5 acres.  I had plenty of room for trees. I was beginning to understand a few things about planting them.

the tricolor beech (6)Over the course of my career, I have planted a lot of trees. Under story, or smaller growing trees are easy to place in just about any landscape. Their mature size is friendly and companionable with perennial gardens and shrubs, and smaller urban properties. The variety of species and cultivars available at nurseries is extensive. A gardener would need a very large property to grow one of every tree available in commerce. Trees are grown and sold in a variety of sizes.  The modest cost of a small tree in a pot makes it possible to plant a grove. My company rarely handles a tree with a root ball over 40 inches in diameter.  A root ball this size will weigh almost 1000 pounds. Some nurseries grow very large specimen trees. Luckily there exists sophisticated technology, and expert large tree movers such as GP Enterprises, that permits moving and replanting very large trees.

the tricolor beech (7)A tree spade is a flat bed truck, outfitted with a hydraulically powered set of four blades that can remove a cone shaped mass of soil 10′ in diameter, and better than 6 feet deep.  The spade can likewise dig a large tree, and transport it horizontally on the truck bed to a replanting location. A 5 inch caliper tree – the caliper being the diameter of the trunk 6 feet from the ground – will require a 5 foot diameter root ball to insure a successful transplant.  A 5′ diameter root ball weighs about 2800 pounds. We are in the process of installing a landscape on a very large property.  Big trees will help to provide a sense of scale and age to the landscape. This tricolor beech is 35 years old.  It is possible to move a tree of the age, as it has been root pruned, dug and moved a number of times at the nursery. Moving a tree from the wild would of the age would be much more difficult.

new beech (2)No matter the size, moving a tree is never easy. Every balled and burlapped tree has had many roots critical to its health and well being cut off in the process of making it movable. A large canopy tree with an abruptly reduced root system will suffer transplant shock, until enough roots grow back to adequately support the life of that canopy. It will take a year for every inch of caliper for that tree to recover sufficiently to begin growing again.  A one inch caliper tree will resume growing after one season in the ground.  A ten inch caliper tree will take 10 years to become completely established.

new beech (1)This tricolor beech has a very good new home. It was transplanted with a good deal of care.  It is planted in a space where it has plenty of room to grow. Best of all, there is a committed client who will not only truly enjoy it,  they will look after it as it should be.

Those Other Hydrangeas

hydrangea Annabelle (7)My previous post about hydrangeas was narrow in scope.  Annabelle hydrangeas, or hydrangea arborescens “Annabelle” are commonly known as smooth hydrangeas. Their giant spherical flower heads are identifiable from a block away.  They have an annoying tendency to flop over.  Like peonies, their giant flower heads can topple an entire stem in a strong storm. That aside, they are showy. They bloom on new wood. Most encouraging of all for gardeners in my zone? They are both plant and bud hardy to zone 3.

limelight hydrangea hedgeLimelight hydrangea, or hydrangea paniculata “Limelight” is  hardy to zone 4.  The flowers are cone shaped.  The stems are incredibly strong, and upright. The flowers are not truly white-they are a lime green verging on white. They also bloom on new wood.  This means the flowers are set on the current year’s growth. A bad winter will not impact the flowering. The 4-5 foot version, Little Lime, is just as strong and hardy as Limelight.  The diminutive Limelight cousin,  “Bobo”,  grows 2 to 3 feet tall-and is entirely hardy.

all summer beauty hydrangeaThis said, I have had lots of clients express an interest in pink, or blue hydrangeas. Can you hear me sighing?  The All summer Beauty hydrangeas, both in ground and about to be planted,that you see above, is known as a mophead hydrangea. As in hydrangea macrophylla. The mophead hydrangeas are most easily grown in zone 6- 8. Truly. It is easy to see in the above picture that my client’s “All Summer Beauty” hydrangeas died all the way back to the ground as a result of our very cold winter. Hydrangea macrophylla blooms on old wood.  In early May, I could see that these hydrangeas had no live wood above ground, meaning there would be no June bloom on them. It would be a green summer for these hydrangeas- unless the plants would throw a few blooms on the new wood.

endlesssummerShocking this zone 6-8 business. All Summer Beauty hydrangea was introduced with great fanfare. They bloom on the previous year’s wood, but they also bloom on the current year’s wood. This was good news for hydrangea growers in northern climates. We had hopes that pink and blue hydrangeas would work for us.  I find that the bloom on new wood is sparse at best. The heavy bloom is the June bloom.

hydrangea_articleThe reality of the mopheads is that they promise a lot, and deliver not so much. Success with them is varied.  It is not so easy to figure what conditions will produce reliable blooming.The majority of the June  bloom resides in the previous year’s wood – wood that needs to  survive the winter. If you are growing All Summer Beauty, do not prune in the fall. A fall pruning removes flower buds.  Site your mopheads out of the way of the wind.  If you are mophead driven, be prepared to protect your plants over the winter.

July 13, 2012 035I do have a number of clients in Grosse Pointe.  This is a metropolitan Detroit community situated along Lake St. Clair. The mopheads I see on the west side are great once in a great while.  In this community, I see pink and blue hydrangeas blooming profusely every year.  I can only surmise that the water is a mitigating circumstance.  Water side gardens cool off  very slowly in the fall.  Plants enter the dormant stage slowly.  A big lake is slow to warm up in the spring, and protects garden plants from precipitous drops in spring temperatures.  A lake nearby is a blanket, both fall and spring. The big lake side gardens are most surely a zone 6 – maybe warmer. This is my guess.

blue hydrangeas
I have one client whose stand of mophead hydrangeas are gorgeous every year. Only one, I might add.  I really have no idea why they bloom so beautifully. I was advised that this cultivar is Nikko Blue, but this information is anecdotal.  I did not plant these. They were in place when I came to work for her. They are reliable in bloom, every year.  My other clients with mopheads have lots of green years, punctuated by flowering years now and then.  Some repeated successes I ascribe to a serious program of winter protection.

[wallcoo]_hydrangea_picture_4(1)I will say I have never seen hydrangeas other than white bloom like this.  If you have a big love for hydrangeas, research any plant you have a mind to purchase.  You need to know what species of hydrangea is the parent, and how to properly prune it. You need to cast a critical eye towards that place you plan to site them.  Is it near a house wall? Is the intended planting in a windy and exposed location?

July 13, 2012 039When a mophead hydrangea is happy, it is very very happy.

FullSizeRenderA good client emailed me this picture yesterday.  He saw these hydrangeas in bloom in Rhode Island.  Could he grow them in his garden?  This is a lace cap hydrangea which like the mophead, is hydrangea macrophylla.  It will suffer from bud loss from spring frosts, a too late pruning and a too cold winter in the same way as the mopheads. As beautiful as they are, they will not reliably like being planted in a Michigan garden. If they are killed back to the ground over the winter, they can come back-but the bloom will be very sparse. I doubt my client would have much luck with these.

hydrangeas Aug 15 2013 (17)I do not have much experience with hydrangeas other than white. I have a preference for hydrangeas that wholeheartedly like my zone. Were I dead set on having them, I would experiment to see what location in the garden was the most friendly to good flowering.  Some of the newer varieties may be more hardy for you than others. There are so many varieties available to choose from.  Perhaps there is one that will work in your garden.

Hydrangeas

hydrangeas and boltoniaNo discussion of a summer landscape in the mid west is complete without a a discussion about hydrangeas. Simply said, a hydrangea is a large leaved blowsy shrub noted for its spectacularly showy flowers. I should preface my remarks about hydrangeas with my point of view about shrubs in general. I am keen for any shrub that can endow a landscape. I find that shrubs perform year after year, with a minimum of maintenance. Some medium sized shrubs-as in spirea-not only tolerate being cut to the ground in the spring, they spring back and bloom without missing a beat. Other shrubs not only tolerate uninformed pruning, they thrive in spite of it. New cultivars of dwarf shrubs-I am thinking dwarf butterfly bush – amiably adapt to small gardens. Big shrubs can screen an untoward view.  Shrubs have a decently long life span. They ask little, and provide a lot.

limelight hydrangeas They bridge the gap between the perennials that are below eye level, and the trees that are above eye level.  A yearly pruning takes the place of the long list of care requirements that perennials require. Shrubs do take a lot of room, so if you garden is small, be discriminating in your choices. Hydrangeas are as friendly to a perennial garden as they are to a stand of trees. They can add weight to a garden. Lime Light hydrangeas sport greenish white cone shaped flowers that can back up a perennial garden. They have a long season of bloom.  Their twigs are sturdily upright.

hydrangea Annabelle (2)The hydrangea Annabelle has been in bloom since June in my zone.  This is a stellar year for them.  Everywhere I see them, they are standing up fairly straight, and loaded with blooms.  I have never been a big fan of the Annabelles. Their tendency to flop over demands careful staking way in advance of the growing and flowering. What a nuisance.  This year, all those giant white blooms look great wherever I see them.  Staked, and not staked.  In sun, and in shade.  I suspect our heavy and regular rain has been really good for them.

the landscape in July (2)I planted 3 rows of annabelles and 2 rows of Lime lights in this garden this spring-so the hydrangea bloom time will be long.  5 rows of hydrangeas is an embarrassment of riches in hydrangeas.  The Annabelles, to the left, gracefully drooping over a rustic boulder wall, start blooming in June. The taller and more vertical growing back stop of Lime light hydrangeas begin to bloom in late July. This garden is at least 150 feet from a rear terrace.  All of that white will read well from a distance. Unseen in this picture-a perennial garden with a lavish white coat of hydrangeas backing it up.

hydrangea gardenI placed the 3 rows of Annabelle hydrangeas just behind this rock wall.  Their inclination to droop will soften this wall. They will provide a graceful and warm backdrop to the perennials in front of the wall. The Limelights in the rear were invisible when they were planted.  But by next year they will provide another taller layer of white to the perennial garden.

hydrangeas needing waterHydrangeas do not like dry soil. These Annabelles are in sore need of water. They may flower, but the flowers will burn without regular irrigation.  If your hydrangeas have leaves that are turning yellow and dropping on the interior, get out the hose and soak them.

hydrangea BoboI also grow Little Lime hydrangeas, which top out at 4-5 feet, and the shortest of the Limelight series-Bobo.  At 30 inches tall, they are perfect for a small garden. Or for a foreground garden that needs to be low. They are a good choice for those moments in the landscape that asks for a plant that is short and wide. This hydrangea takes to perennial neighbors like a duck to water. The white flowers highlight and set off all of the other colors in a garden.

limelights 2013 (7)I prune my Lime lights in April.  I wait until I see the buds swelling.  I usually prune my 50 plants back to 30″ tall – give or take. Every other year. I do not prune them down near the ground. Really hard pruning results in fewer, and bigger flowers. I am not interested in bigger flowers. I like lots of medium sized flowers. I like my Lime Lights at home very tall-they are faced down by an old hedge of Hicks yews.  Some years I snip the old flower heads off, and leave them be.  Light pruning means you will get long woody legs. The following year, I may take them down to 30″  My yews cover those old legs.  If your hydrangeas are front and center, take them down closer to 30″. Irregularly.  Prune each branch individually, so every branch has its own air and light space. You can prune down to 14″ above ground-if you dare.  Do not go lower than this.  Forcing growth from below ground is hard on a shrub.

August 28 2013 (8)I have had a lot of questions regarding the proper spacing of Lime Light hydrangeas. I would say there is no proper, or right spacing. The spacing chosen has to do with the design intent. I space them at 30″or 36″ on center, if my intent is to create a dense and homogeneous hedge. Close spacing means that the entire length and width of the hedge grows and prospers as one organism.  The individual plants intertwine, and become one. I have never seen a hydrangea hedge that resented this spacing.  A spacing at 6 feet is an option.  But this row will never read as a hedge.  It will read as thick and thin. Wavy. I have had clients space them at 6 feet one year, and add an intervening plant the next year.

September 19 2014 (64)Hedging hydrangeas make a very strong statement.  A lone hydrangea as a foundation planting always looks alone, and gawky.  Great landscapes gracefully integrate individual plants in service of a greater whole. I like to mass hydrangeas. A showy shrub such as this-plant lots of them. Build your gardens around them. Be generous.

hydrangeas in SeptemberIn late September, the Lime Light blooms will begin to pink up. This color is a sign that the season is coming to a close.

Oct 17 2011 001In October, the pink deepens.  This view out from my rose garden is a view I treasure from  July through October.  The dry flower heads stay put all winter long. The list of plants that do well in my zone is long, and varied.  The delight this shrub furnishes to me is very long and varied.  I would not do without them – the hydrangeas.