Archives for September 2017

Lay In Some Lavender

Our early September has been surprisingly chilly. As in 48 degrees early this morning. My tropical plants in containers look insulted by the turn of events-both at home, and at the shop. I am not especially ready to give up my summer containers. I regret any face off with nature, as 100 percent of the odds are against me. We’ll see how long I can keep them going. The weather turning this quickly from summer in to fall has me thinking about plants that gracefully survive that transition. Rob planted a number of pots at the shop with lavender this spring. They were as tolerant of our cold April as they are of this chilly September. They are shrugging off the chill as if it were nothing more than a tiny blip on a very big screen. Maybe I need to lay in some lavender.

Lavender is an iconic garden plant treasured by gardeners world wide. The soft and subtle bluish green or gray foliage is topped by equally subtle flower stalks sporting diminutive flowers in white, lavender and purple. I hear tell of varieties that have pink flowers. The plant, and the plant blooming on thin stalks that wave in the breeze, is self effacing. Lavender speaks softly to the charm of a cottage garden. It speaks loudly to those precisely laid out fields of lavender in France and England. Even in pictures, those rows and rows of lavender blooming enchant. What is not subtle about lavender is the the strength of its fragrance. That powerful and unforgettable fragrance speaks to the garden in no uncertain terms. It speaks just as clearly to the romance that is the garden. I have seen countless pictures of American, English and French gardens planted with lavender. I imagine those gardens are all the more to experience, given that familiar and pungent fragrance.

I like romance in the garden, no matter what form it takes. This means I would plant lavender with a lavish hand-if I could. But as much as I like lavender, it does not like me, or my garden. My zone is the northern most range of its hardiness. Our poorly draining and intractably dense clay soil is a poor home for all of the cultivars of lavandula. Lavender thrives in a freely draining soil, especially in the winter. I have had individual plants thrive fore 5 years or better, as long as they were perfectly sited, and if I only pruned it in the spring. Late summer of fall pruning in my zone is an invitation to disaster. A dead lavender is heartbreaking. I know. Several attempts at borders or drifts of lavender in my garden invariably resulted in random failures. My hedges always had holes, and replacement plants were never the size I needed. I was young when I pulled out all the stops trying to get lavender to thrive in my garden. Though the idea is intoxicating to this gardener, I never plant it in in the garden now. I find that lavender is much happier in my zone in containers.

Rob plants no end of containers with lavender in the spring. It is very tolerant of the cold weather that accompanies the spring. Some of his summer containers that were not snapped up in the spring feature lavender that had been planted very early in the season. All summer long, that lavender prospered. The chilly early fall weather has not endangered any of those plants.  For gardeners looking for container plants to span the spring, summer, and fall season, you might consider lavender.

Rob likes lavender well enough to plant pots full of it. He buys 1 and 2 gallon pots of it in the spring by the truckloads, as well as lavender trained in to topiary forms. Every pot looks good, loaded with lavender.

Lavender and thyme like similar planting conditions, and do well in a pot together. This subtle and restrained planting reward anyone brushing by. The fragrance of lavender and thyme mixed together is delightful.

This lead container had a pussy willow centerpiece, lavender, pansies and ivy planted in it for spring.  When I came to do the summer pots in late June, I couldn’t resist taking a picture of all that lavender thriving.  This particular cultivar is called Grosso.

A client who was opening a restaurant loved Rob’s idea to plant wood crates and pots full of lavender. This container planting will have a very long life. I suspect it will look great long into the fall.

These containers looked beautiful-today. Though planting lavender directly into my garden has never worked out very well, these pots of lavender and thyme are entirely satisfactory. So pleased to have a little lavender in my gardening life. To follow are pictures of lavender that make my heart beat faster. Click on what is written below each picture for details and pictures credits.

  Lavender “Grosso”   

lavender “Phenomenal” from Peace Tree Farms 

lavender angustifolia “Munstead” from RHS plants

lavender “Provence” from Annie’s Annuals and Perennials

Lavender “Platinum Blonde” from American Nurseryman Magazine

lavender “Anouk” from American Meadows

There are so many varieties of lavender available. Make a place somewhere for this plant. You will appreciate the romance.

Interested in a good overview?

A more detailed discussion of lavender

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The Last On The Limelight Hydrangeas

Given that close to 7000 gardeners have read my last post on hydrangeas in the past few days, I am encouraged to write again.  I went back out last night to rephotograph my hydrangeas with a specific purpose in mind. How do I site them in the landscape, and how do I take care of them? I have a significant disclaimer up front. How I grow hydrangeas is not the be all and end all. How I grow them works for me.  What will work for you involves a lot of independent thought, trial, and error. I would be the first to suggest that you trust your own experience over mine. That said, first up is a discussion about how to grow and manage these big shrubs. No matter where you plant them, hydrangeas reward a gardener who is willing to prune. I only prune in the spring, when the buds are beginning to swell. Limelight hydrangeas that have gotten leggy and ungainly will respond to a pruning to within 18″-24″ above grade. Just be advised that a hard pruning is a restorative pruning that may take 2 years to bring them back up to heavy blooming stage. A yearly pruning down to 18″-24″ results in fewer, and larger flowers.

Want more flowers rather than large flowers? Prune the topmost branches shorter than the bottom branches-so every branch is exposed to the light. Prune several times early in the season to promote branching. Come mid May, I stop pruning.This hydrangea on standard has a beautiful branchy structure as a result of multiple pruning sessions. Notice how the flowers are much smaller than my hydrangeas at home? Post an early spring pruning, a lighter pruning over the course of a few spring weeks results in an embarrassment of riches in smaller flowers.

In love with the giant flowers? Prune vigorously. Pruning deciduous shrubs is not just a matter of style, and it certainly is not a matter of control. Pruning promotes growth that maximizes the opportunity for good blooming. A Limelight left to its own devices will have lots of growth on the top that eventually results in leggy and leafless lower branches.

Big shrubs do and will grow big. Harder pruning may result in a finished size and height at the low end of their growth range. Severe pruning-as in pruning right down to the ground, forces growth from below ground, from what are called basal shoots. I never prune hydrangeas that hard. I like having some old wood to support all those new branches to come. Pruning is all about what the future. The Limelights bloom on new wood – the current year’s growth. If you grow hydrangeas that bloom on the previous year’s growth, prune right after they bloom. This enables them to grow and set flowers for the season to come before winter. Leave them be until after they bloom the following year. But no matter what cultivar you grow, adequate light and water will reward your effort to grow them.

Hydrangeas are big growing shrubs with course leaves and giant flowers. This means they are eminently able to hold down a spot in the garden all on their own. But how does a gardener beautifully integrate them into a garden and landscape?  I make sure they have lots of company-both taller and shorter. My landscape can accommodate them at their full height. I have a much larger and taller hedge of arborvitae planted behind them. That dark green foliage highlights the flowers in a dramatic way.

There are several more layers of plantings in front of them. A hedge of Hicks yews whose health had been declining for years was removed. A series of planter boxes were put in their place. This years planting of nicotiana and angelonia is as loose and airy as the hydrangeas are solid and stiff. Companions to hydrangeas that have a looser habit of growth compliment them. A middle layer of loosely pruned taxus densiformis is faced down with clipped boxwood shapes. 4 layers of companionship is none too few for a shrub that grows 6-8 feet tall.

Limelight hydrangeas integrated into a garden

Limelight hydrangea hedge faced down with boxwood

Limelight hydrangeas faced down with anemone “Honorine Jobert”

hedge of Limelights as a border to a large group of mixed evergreens

These hydrangeas are pruned to keep them at a 5.5-6 foot height.

Between the large evergreens and the hydrangeas is a mass of boltonia asteroides.

Limelights and boxwood

Limelights in a garden

new planting of annabelles and limelights together

Limelights blooming top to bottom

Limelights massed in containers

My client’s containers featuring Limelights on standard are robust and showy this early part of September. We will heel them in the ground at our landscape yard late in the fall, and plant them back in these pots come spring. I do have clients who have and do winter them over in their containers.  I am not that nervy with plants that do not belong to me, but I am not surprised to hear this. Hydrangeas ask for little, and are so satisfying to grow.

 

 

 

 

 

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