Sun Parasol Mandevilleas

white mandevillea

The family of plants known as dogbane includes a genus of very handsome plants known as mandevillea.  Mandevillea is a vining plant native to tropical climes-in central and South America.   Michigan in no way resembles the tropics, but this vine is willing to perform here during the summer.  Older forms of mandevillea, including the cultivar Alice du Pont, regrettably, are magnets for both insects and disease.  In 2003, Suntory Flowers Ltd in Japan released a new series of mandevillea called Sun Parasol.  Their breeding efforts produced plants with great vigor and disease resistance.  Their near continuous bloom and ease of cultivation is as attractive as the flowers themselves.    

mandevillea vine

Mandevilleas do require some sort of support to climb.  This does not have to be fancy, since a well grown vine completely cover a pole, wire or trellis in short order. The vines do not attach themselves to a support, they wind around it. I have on occasion planted small mandevilleas as trailers in containers. Their natural inclination to curl gives them a very lively and wired appearance in a pot.    

parasol white mandevillea

All six containers in the front of the shop have white mandevillea as their centerpiece.  Additionally, the windowboxes at the shop are framed by white mandevillea vines.   That decision was made long before the weather warmed up enough to plant. A cool and rainy summer would not have been so friendly to my choice.  Mandevillea loves hot weather-the hotter, the better.  They also like to be kept on the dry side.  This summer-a perfect summer for them.

growing mandevillea

Mandevilleas only bloom on every third set of leaves.  This means the look of the leaves is every bit as important as the flowers.  The dark green, glossy, and healthy foliage is beautiful in its own right.  My Jeannie le Joie climbing roses are a dream come true in the spring, but the foliage right now is nothing much to look at.         

giant pink mandevillea

This week I have been catching up some of the plantings I did in May.  I was happily surprised to see that every mandevillea we planted was growing strong.  If I plant mandevillea as a centerpiece in a pot, I gradually remove its bottom leaves. Layering plants in a container requires some grooming, so one layer does not shade the other.  

giant pink mandevillea

The dahlias in these pots are healthy and strong, but their peak bloom season will come in the fall.  Of course the petunias have revelled in our heat just as much as the mandevillea.  This mandevillea variety is simply known as Giant Pink.

4 10′ natural bamboo stakes provide support for the vine.  We wind individual tendrils around each of the stakes, and tie them up with flexible garden tie.  If new tendrils sprout from the base, or loose their grip on the pole, we may provide more ties. The Surfinia sky blue petunia in this pot-another outstanding annual cultivar bred by Suntory Flowers.  

Red flowered mandevillea is an intense and deep crimson red.  No so many summer flowering plants sport this color, but the Caliente deep red geraniums in this container come close.  This vine is supported by 4  1/4″ diameter steel poles.  The part of the pole that goes in the ground is straight.  The upper part of the pole angles out slightly.  We make these poles to mimic the natural growth of the plant.  Once the vines reach the top, they can be left to their own devices.


What the small flowered cultivars lack in flower size, they make up for in sheer numbers.  In another few weeks, these vines will be completely covered with flowers.  Though I primarily use them in containers, they can be equally effective planted in the ground near a light post, railing, or fence. 

The large flowered mandevilleas are slower to come into bloom than the smaller flowered cultivars, but if the warm season is long enough, they will catch up. Given how difficult our summer season has been, I really appreciate the breeding that has made this plant weather tolerant, florifierous, disease resistant, and easy to grow.   

 

This is the hottest spot of any spot I garden.  A stone terrace and brick wall facing south makes this terrace feel like the desert on a hot day.  I see no signs of stress here whatsoever. 

Mandevilleas are not tough to overwinter.  The need a spot which does not dip much below 40 degrees.  They will drop some leaves when brought in.  I water them on occasion over the winter-not much.  I do cut them back, but not much.  They will need those stems to get going again in the spring.

Time For The Limelights

limelight hydrangeas

Summer blooming hydrangeas appeal to almost every gardener.  Each flower head is substantial.  Comprised of hundreds of tiny florets, a single cut stem is a bouquet that celebrates the beauty of the summer season. One shrub in full bloom delights the eye.  There are no end of cultivars-some white, some pink, some blue on occasion. They are broadly tolerant of a variety of conditions, but appreciate their fair share of sun, space, and water.  I plant Limelight hydrangeas, and the new dwarf version, Little Lime, more than any other variety. They are vigorous growers, and bloom reliably.  

summer flowering hydrangeas

My zone is a little too chilly and unfriendly for a good many hydrangeas.  This is just me talking, but I only have one westside client who has been successful in growing blue hydrangeas.  Her success is a mystery to me.  The pink flowering varieties, available in my zone are easy to grow, but so reluctant to bloom.  Sporadic bloom on a sizeable shrub makes me look like I don’t know how to garden.  My clients on the east side of the metropolitan area have no problem cultivating pink and blue hydrangeas. I can’t help but think Lake St. Clair mitigates seasonal extremes. 

hydrangea hedges

 I am satisfied to grow the hydrangeas that do well in my area.  This means Annabelle,and Limelight.  White hydrangeas, these.  They are easy to grow, and so willing to bloom.  Come June, the Annabelles delight every gardener with their snowballs.  My favorite place to site them is on a slope, as they are stubbornly floppy in habit.  Come the first of August, the Limelights transform the garden.    white flowering hydrangeas

Their greenish white conical flowers develope over a period of a few weeks.  Chubby, luscious,  and very large, the showy flowers dominate the summer landscape.  I have 25 or 30 of them in the ground at our landscape yard.  They are planted in gravelly soil, and make due with whatever water comes from the sky.  They are a quarter of the size of these plants; the flowers are tufts.  Plant hydrangeas in compost enriched soil that gets regular water.   

great shrubs for the landscape

 Large growing hydrangeas can be stalky-leggy.  Skillful pruning in the early spring can help keep them green and blooming to the ground.  But a good underplanting gives them a very finished look.  I like to face down most large growing shrubs with a smaller growing shrub or perennial.   Boxwood does a great job of concealing those inevitably gawky Limelight legs.  They do a better than great job of giving the hydrangeas some winter interes

hydrangea limelight

 This block of limelights is wedged in between a hedge of yews, and an L of boxwood.  In a different, cooler, and more rainy summer, the tops of those yews would be dark emerald green, rather than the color of toast.  But the lime green second flush of growth on the boxwood is a beautiful textural contrast to the hydrangeas.  No legs on display here.

white hydrangeas

 I prune my hydrangeas as soon as the buds swell in the spring.  I give them a shag haircut, by shortening the long branches on the top. I rarely prune the bottoms.  Heading back the long top branches allows light to reach the bottom. Good foliage and flowers requires good light.  It is so easy to see in this picture that the heaviest bloom is occurring where there is the most exposure to light.   

white blooming hydrangeas

 Limelights can be pruned as low as 24″-30″ in early spring.  Hard pruning produces fewer, but larger flower heads.  I prune my hydrangeas lightly, as I like them tall, and I like lots of flowers. They make a beautiful backdrop for this pot in August.  They hydrate the look of my summer landscape.

My blocks of hydrangeas are sequestered behind a pair of yew hedges-one formally pruned, another left shaggy.  Thuja nigra backs them up, and sets off the white flowers to good advantage.  This is the juciest moment I have had to date in my garden all season-you bet I am enjoying them. 

 

 

 

Boxed In?

landscape design

A rectangle is an easily recognizable 4-sided shape.  Like circles, ovals, triangles, and parallelograms, they define or outline a geometric shape.  This lovely home could be easily be sketched on a piece of paper by connecting a series of rectangles, triangles, squares and ovals.  Every one of these basic shapes is created by the lines that enclose, or define it. A linear representation of the front door would look like a series of squares put together in such a way as to create a rectangle.  This photograph, is its most basic incarnation, is a rectangle.  The composition of the photograph is determined in large part by its 4 edges.  Shade trees and evergreens are often described by the shape they most represent, as in “broadly pryamidal”, or “oval”. A two-dimensional shape expressed in three dimensions has its own vocabulary.  A circle in the third dimension is a sphere.  A cylinder is constructed from two circles and a rectangle.  A rectangle in 3 dimensions is a box.  A box may vary in dimension, but for design purposes, a box is a box.          

French wirework bench

Any landscape is confined by  the edges of the property.  A property may be a rectangle or a triangle, or a combination of many shapes.  But in every case, a property has limits.  What is visually available to your property is confined only by what you cannot see, but those places where you can plant have been drawn on a piece of paper known as its legal description. There is no need for a legal description of a property to dictate a landscape design.   Most urban properties have ties to a slew of rectangles.  That could be a street or city sidewalk. A driveway.  A hedge of arborvitae planted by a neighbor.  If you visualize what is within your design reach on your property, more than likely it is a box-and a fairly plain box at that.  This property has a very beautifully done, asymmetrically curving bluestone walk.  In renovating the landscape, I admired how that curving feature both countered and complimented all of the existing rectangular shapes.  A pair of trees, a curve of boxwood, a curved French wirework bench sitting on a gravel double sided crescent, all respond to that generous and fabulous sweep of stone.  

bluestone walkway

We installed a stone walk to the back yard very close to, and parallel to the garage.  This side yard is primarily an efficient means to get from the front to the back.  But the addition of the arbor to the foreground pots and bench helps to slows the eye.  The parallel bed of ivy to the right curves and crosses over the path in the far ground.  This creates a sense of anticipation for what might come next-just around the corner. 

raised stone firepit

The rear property is very shallow, and long.  It is most definitely a box.  We had the idea to outwit that box.  The circular firepit in the foreground is a strong visual stopper.  It also strongly serves as a gesture that challenges the idea of a box.   The  narrow lawn that swings around the firepit terrace, widens,  and curves back to the left behind a midground seating area directs the eye around the space.  That curve is repeated on the right side; a privacy hedge of arborvitae is planted in a shallowly curving line.  This rectangular space has been scribed with curving beds that do not reveal the landscape all at once. 

granite block firepit

A landscape that encourages the eye to focus on a particular feature slows down the pace of discovery.  There is time to see and take in the relationship between the gravel terrace, the firepit fashioned from old granite setts, the cylindrical side tables and the circular contemporary chairs. 

curved garden beds

The wide grass path veers to the left, directing attention to a perennial garden, and terrace.  A fountain set in the lawn is somewhat visible at this point.  The curving lines, and furniture provide lots of interest to the midground space.

perennial gardens

A large terrace is three steps up from the grade of the lawn.  The lawn formerly ran right up to its stone retaining wall.  The addition of the curved beds in lawn not only directs the eye to the steps, but they soften the large rectangular stone terrace.

terraced landscape beds

One area of the terrace is simply furnished with a dining table and outdoor kitchen.  The white painted pergola and trellis  give the grill plenty of garden oriented company.  This arrangement was solely the work of my client.  She has a great eye, and is a pleasure to work with.   

wood pergola

A pergola at the opposite end provides a beautiful transition from the terrace to an interior sun porch.  A climbing New Dawn rose has gracefully draped itself over the pergola roof.  Climbing plants rescue pergolas from their inherently boxy shape.  A small scalloped bistro table and pair of chairs placed in the shade provided by the rose is a beautiful touch-again from my client. This part of the landscape is not apparent until you turn the corner, and are right up to it.    

garden terrace

The fountain at one time had a home on the terrace.  Moving it to the lawn plane, and curving a hedge of arborvitae behind it makes this narrowest part of the box seem spacious.  There is actually very little space between the leading edge of the terrace and the lot line.  The round fountain, and the accompanying curved landscape minimize that boxed in feeling.

garden views

The change of level in the rear yard gifted it with lots of built in interest.  Though a space can be severely rectangular, that is not to say that the floor has to be flat.  Layers of evergreens, or sculpted soil can focus attention on what is inside a space, rather than what defines, or confines it.  Sometimes I will design from the center out to the edges of a boxy flat space, rather than from the edges out. 

gravel driveway

The very first work I did for this client years ago involved suggesting that her that a old spruce could be left intact the middle of her gravel drive.  Yes, they are able to drive around it, and into the left bay of the garage.  That spruce makes so much out of a small rectilinear drivecourt, as do the curving edges of the approach.  The quite serviceable driveway is an interesting feature of the landscape.  Out of the box, that is.     

 

One Thing At A Time

landscape renovation

Anyone who owns a home knows that house take lots of time effort and money just to maintain the status quo.  Upgrading to a new air conditioning system, springing for a new refrigerator, or replacing a hot water heater that has leaked all over the basement is all the more unsatisfying-can you imagine hosting a dinner party so your friends can gather around to admire your new furnace?  Any time now, I will need a new roof-an expense I have been dreading, and putting off, for almost 3 years.  Even more, I dread the thought of the damage to my garden from the installation.  The thought of old asphalt shingle bits, roofing nails and broken branches littering the ground-I try not to think about it.  The cost of a roofing job complete with the proper scaffolding that would prevent damage to the garden-beyond belief. 

landscape renovation

Renovating a landscape is not any different than updating the interior of a house.  It can be just as expensive, and just as inconvenient.  The before and after detailing the change in this contemporary landscape took but moments to record.  The actual job took plenty of time. The work involved repairs to the retaining walls, the regrading of the ground, the elimination of a row of weeping birch that had been planted at no small expense, and a major trimmimg and cleanup.  Time and money-not to mention the dirt and disruption. It’s easy to understand why most gardeners are more comfortable with the one thing at a time approach. Gardeners that rip out an entire landscape and start over are few, for obvious reasons.    

 The nuisance and expense aside, there are good reasons to tackle a tired landscape one project at a time.  A plan is just that-some marks on a piece of paper.  It is a map that is not so clearly marked.  A landscape lives and breathes, in every dimension.  Trying to make a living community fit a preconcieved notion on a piece of paper-the translation can be very difficult.  A smaller project with a smaller scope gives the designer or gardener a chance to look over the initial moves, and decide if a change of plans might be in order. I call this letting the project speak back.      

My projects tend to order themselves  such that the earthwork and drainage comes first, the structures and hardscape comes second, and the planting last.  Each of these phases can happen out of order, if an existing area is being renovated.  Each phase is a layer that compliments and enriches the initial concept.  This idea- from my friend and colleague, Patrick Zaremba.  He sees his work as a layering of materials, objects and plants that work in concert-creating over time a landscape experience that is beautiful.   

landscape design

It takes a great deal of time and skill to layer a perennial garden to successfully represents different seasons, textures, heights, and bloom times.  A good landscape takes the same sort of time and effort. This pool terrace was years in the making.  The pool and pool deck is raised above the existing grade.  The existing ground dropped dramatically from the back of the house.   (I take no credit for this ingenious treatment-the pool came long before me.)  The trees were planted after the pool was installed.  The size and diameter of the trunks of these trees indicates how long ago that was.  For several years we planted fiber pots of varying sizes and shapes, trying to find a scheme that wouldwarm up, but not clutter what was already beautiful.

The furniture and pots are new this year.  They add another layer to a landscape which is old, and sound.     

landscape design

The steel pots sport large birds of paradise, and are underplanted with caladiums.  The stone bowls are planted with dwarf alocasia, and a mix of caliente geraniums.  This lush look is a strong contrast to the geometry of the furniture and pool.  The furniture is properly overscaled, as the space is large.  

solenia begonias

The plantings add a lot of color to a scheme which is primarily black white and grey. 

There is not all that much to this layer.  Just enough of a gesture to make a difference. 

When I first saw this pool and terrace, I thought it looked a little too spare.  The architecture of the house, the pool deck and walls were beautifully designed in the 1970’s.  This landscape had great bones.  As solid and effortless as it looks, what it took to level the ground to accomodate a pool and terrace of this size was considerable.    

This walled terrace affords my client great privacy, even though the pool deck is far above street grade.  A pair of pots on the dining terrace invites the landscape inside, without sacrificing that privacy.  A small gesture has made a big difference.     

container gardening

Considering one thing at a time in renovating a landscape can be all to the good.