Taking Stock

Occasionally, during the hum-drum of daily garden affairs (and often, as it happens, while mowing), ProfessorRoush's mind plays a little fantasy game.  A little game called "if I were moving, what plants and things from this garden would I want to take or duplicate?"  It's a thought experiment that can be endlessly repeated based on the size of the retirement garden to which one aspires.  And it suffices to pass the time while mowing.

This week, it was the Surprise Lilies (Lycoris squamigera) that prompted the onset of the mental gymnastics.  They've been in my garden a number of years and they never fail to surprise and delight me, as they have yet again this season.  Sometimes, in the spring, I'll see the daylily-like foliage and have to think a minute to remember not to weed it out, but I've spread these so they now pop up several places in the garden.  Whether my next garden is 10 acres or 10 square feet, I always want these Naked Ladies (their other, less politically-correct name) to pop up and delight me.

'Cherry Dazzle'

What else, from this pre-Fall period, would I want to preserve?  Well, crape myrtle 'Cherry Dazzle' is not maybe the most spectacular crape I have, but it certainly never disappoints with the color and floriferiousness and its under 2' circumference would fit in a small garden.

'Cherry Dazzle'

 I wouldn't want to live without a panacled hydrangea around this time of year, 'Limelight' or some other.  I just enjoy their brazen display when all else is turning brown.  And the Sweet Autumn Clematis (Clematis terniflora) is starting to bloom and by next week it will be perfuming the garden from one corner to the other.  How could I go on gardening without at least one massive tower of C. terniflora?  Unfortunately, with Sweet Autumn Clematis, having just one is the difficult part since it self-seeds everywhere in my garden.

'David'

And then, last but not least on the seasonal list of plants that I would just have to move, there is the phlox 'David', massive pure white heads standing straight and tall, unmarred by sun and rain.  'David' is easily transplanted and easily propagated.  I believe it also comes true from seed, and doesn't revert to pukey majenta like many garden phlox seem to.  There actually may be an advantage to allow it to self-proliferate, because I have clumps that look identical but bloomed more than two weeks apart in the same bed.  I bought one plant of 'David', one time, and now I have 6 or 8, spaced all over the garden beds.  Yes, I divided and moved it once or twice, but it grows now in places I never placed it, where it had to have self-seeded.   

Unless, of course, it grew feet and walked.  Sometimes plants try to sneak past an inattentive gardener.

Hydrangea Heaven

Kansas gardens are living proof that not all hydrangeas are created equal.  I have always been a miserable failure at growing the more common blue or pink Hydrangea macrophylla, countless numbers of which I have purchased, watered, fertilized, protected, cursed and eventually mourned over.  My experiences with the more cold- and drought-resistant panicled hydrangeas (Hydrangea paniculata) have been much more promising, however.  Here in the dry sunny Flint Hills, these large shrubs are dependable focal points for the August garden.

 

 

 

'Limelight'

Without a doubt, the most floriferous display in my garden this week is 'Limelight' a fabulous panicled hydrangea that dominates its corner of the garden.  'Limelight' is an introduction from Holland patented in 2002, and it can make an enormous eight foot tall deciduous shrub in the garden, although mine seems to have maxed out at approximately 5 foot tall and wide.  The drought of the past two years seems to have worked in my favor this year, bringing the plant into a display that surpasses any other year.  'Limelight' grows in full sun and on an exposed site for me, completely unprotected from the Kansas climate, and it is cold-hardy to the tips.



'Limelight' Hydrangea

Some of the cone-shaped flower panicles of 'Limelight' are almost a foot long and 6 inches wide. They start out light lime-green and then fade to white and finally gain some pink tones in the fall, and the foliage seems to be resistant to insect and fungal damage here, although the leaves occasionally get a little crisped on the edges by the hot July and August sun.  I only regret that there is only a negligible fragrance and that the shrub is seemingly sterile in its environment, unattractive to bees and other valuable garden residents.

'Pink Diamond'

I grow several other panicled hydrangeas.  'Pink Diamond', pictured to the left and below, was labeled at purchase as a Hydrangea microphylla, but I can't find H. microphylla as a recognized species and online sources list it as H. paniculata.  'Pink Diamond' also provides a good floral display, and individual flowers turn pink quickly at the base of the panicles.  My 'Pink Diamond' shrub is about the same size overall as 'Limelight', and it sits at the opposite end of the same bed, forming white bookends at this time of the year for the other plants in the rest of the bed.

'Pink Diamond'

'Vanilla Strawberry'

H. paniculata 'Vanilla Strawberry' grows almost in the center of the same bed, and this has a much more subtle display than its show-off cousins.  At maturity, it is around four feet tall and wide, a little smaller than the H. paniculata cultivars, perhaps because it grows in the shadow of a towering  'Sweet Autumn Clematis' (seen to the left of the picture below) that also insists on trying to colonize everything within it's reach.  A note of caution is in order about the H. paniculata's:  Wikipedia states that hydrangeas are moderately toxic if eaten, with all parts of the plant containing cyanogenic glycosides.  Human beings sometimes try to smoke H. paniculata leaves, an often fatal action due to cyanide inhalation.  So, kids, don't smoke hydrangeas.

'Vanilla Strawberry' covered by C. paniculata

Although I've previously neglected to mention the garden usefulness of H. paniculata and other hardy hydrangeas as stalwart shrubs in Kansas, I would never leave them out of my next garden.  Right now, I've got high hopes for a yet small 'Pinky Winky' cultivar that I planted two years ago, although it has struggled in the drought and heat of its first two summers.  I'll also disclose that I've failed previously with H. paniculata 'Quick Fire', and with 'H. quercifolia', and 'H. quercifolia 'Little Honey',  but I think the latter native species deserves another try before I give up on it entirely.  It is supposed to have nicely-colored fall foliage that would be a good addition to my October garden.

  

Blinded to Drought

Oops, I made a slight gardening error by taking a short four-day vacation this week.  We've had higher than normal temperatures for a month (one day topping at 110F) and the last significant rainfall was 1 inch on July 14th (this is being written on August 8th).  I knew things were getting a little dry, but prior to leaving, I watered the newest plants and everything else was looking pretty solid. Oh sure, I'd noticed that the clay soil was pulling away from my limestone edging a little bit, but the plants were toughing it out.  Normally, I don't even think about watering plants that have been in the ground over a year. I prefer to practice the tough love xeriscapic approach to gardening.

Hydrangea paniculata 'Limelight'

But I should have listened to the story told by the clay and edging.  Upon my return, it was obvious that my 'Royal Star' Magnolia (Magnolia stellata ‘Royal Star’) and several panicled hydrangea (Hydrangea paniculata ‘Limelight’, for instance) were showing the effects of the hot weather and drought.  And a 'Jelena' Witch Hazel (Hamamelis x intermedia 'Jelena') was practically burnt to a crisp.  Obviously I could have avoided the worst of the damage if I had recognized that the drought was reaching a critical phase and if I had started watching these indicator plants earlier.

Rudbeckia hirta

Happily, nothing else in the garden has yet been blasted in the Kansas furnace.  All the roses go merrily along, although perhaps they are not blooming as profusely in the heat, and the crape myrtles and the Black-eyed Susans (Rudbeckia hirta) are just laughing at the heat.