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Pasque Flower welcomes spring

10/5/2019

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Pasque Flower in the garden
Pulsatilla Vulgaris Rubra Photo: Hans Braxmeier at Pixabay
Spent Pasque Flower
There are many plants I wish were in my garden, but when spring arrives the one I miss the most is Pasque Flower or Prairie Crocus (Pulsatilla vulgaris).  While many plants are still sleeping in the spring garden, Pasque Flower is happy to hail the new season.  

This plant is native to much of Canada.  According to the Canadian Wildlife Federation, Pasque Flower ranges "from the Yukon and Northwest Territories down through British Columbia and across to the western tip of Ontario and is the floral emblem of Manitoba."  It is typically found in "open areas such as prairies, rocky outcrops, slopes and occasionally in woodland clearings."

Pasque Flower is also a useful, if little known, pollinator plant. The flowers offer abundant pollen when bees are eager for an early-season food source.  Some observe that the generous, upright flowers provide a place for small insects to warm up, thanks to the arrangement of their sepals which reflect sunshine, increasing the temperature inside the bloom by several degrees.

Like me, you may fall for the fuzzy stems and the charming little 'pinwheels' that form from the spent flowers. These interesting structures  add texture in the garden for some weeks.  

​Take a little time to read 
cultivation requirements for this hardy plant at Dave's Garden. 

And, you can read more about cultivated varieties in Susan Mahr's article at the University of Wisconsin-Madison Extension.  Check your nursery for plants or purchase seeds online. 

You might guess how much I like Pasque Flower as you view my new home page image. 
​So beautiful, don't you think?

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Photo: Coleur at Pixabay

Want to grow Pasque Flower in your garden?  Find plants and seeds at these locations:
Canning Perennials - for 'Alba' or white Pasque Flower
Wildflower Farm - for seeds

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Leaves are my secret weapon

17/11/2017

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As temperatures turned raw this week and the first real snowfall loomed, I was out tossing leaves on my perennial beds.  By the armfuls, actually.  I tuck leaves around the crowns of hosta, iris, peonies and astilbe.  They serve as an insulating mulch, protecting perennial plants from winter's harsh weather.
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Manitoba maple leaves are pure gold in the garden
PHOTO: Papa Ellis on Flickr
I've mulched with leaves for many years.  I discovered their value when I gardened on a steep south-facing slope where the soil would warm enough to thaw, and then freeze again. This can spell certain death to many shallow-rooted plants.  I've come to think of leaf mulch as my secret weapon.  
Why mulch works ...
​
As Sandra Mason of the Illinois State Master Gardener Program, explains, "Sometimes it isn't really the cold temperatures that cause problems, but the fluctuations, especially rapid fluctuations between warmth and cold."  This fluctuation causes garden soil to thaw and freeze, to expand and contract.  The effect is called soil heaving. ​As the soil heaves, shallow-rooted plants can lift out of the soil. Roots and plant crowns can actually end up above soil level, exposed to cold temperatures and drying winds. If there is little snow cover, plants can be severely damaged or lost.
soil heaving

Soil heaving. This plant is lifting out of the cracked soil.
PHOTO: www.savvygardener.com
Leaf mulch

Leaves around plants provide insulation.
PHOTO: www.savvygardener.com
In the north, our winters seem to be characterized by more frequent temperature fluctuation. I believe this is a marker of climate change. Applying leaves as a mulch provides a layer of insulation while allowing plants to breathe. Under the leaves, the soil temperature remains even and soil heaving is reduced.

Have you noticed how hosta leaves slide into a soft brown skirt that gracefully covers the plant's crown? This is nature's leaf mulch.  I top up this covering with more small or deeply-lobed leaves.  Manitoba maple leaves – which are abundant in my neighbourhood – are ideal.  ​​​


When should you mulch?
It's best to mulch after the soil freezes. The goal is to keep the soil frozen longer, allowing plants to slumber on for the whole winter with their roots frozen and resting, even during  thawing periods.  I always wait for a hard freeze before I mulch, but weather conditions dictate when this fall chore is best done.  It's not much fun to be outside in the freezing rain mulching garden beds.  If light snow has fallen, you can still mulch. Work leaves around the plants and in wind-swept areas, anchor them with spent plant stalks or evergreen boughs.  When the snow comes – or even a crisping frost – everything will be held in place.

About getting leaves ...
I live in a treed neighbourhood.  Leaves are everywhere.  This year, as my neighbours raked, I asked them to save their leaves for me. 'No need to bag them,' I said. 'I want them for my gardens.' One brought me a huge tarp full. Another leaned a mattress bag full of beautiful dry leaves by my front steps. Marvelous.

Come spring, the leaf mulch will find its way, a little at a time, into my composter.  With luck, they will also go into a bin for fine shredding with a weed-whacker, only to return as a finer, weed-blocking mulch for summer.  Yes, leaves are definitely my secret weapon.​

Perennials that are susceptible to frost heave
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Pigsqueak (Bergenia)
Coreopsis (Coreopsis)
Seathrift (Armeria)
Foamflower (Tiarella)
Foamy Bells (Heucherella)

Pincushion Flower (Scabiosa) 
Coral Bells (Heuchera)
Shasta Daisy (Leucanthemum)
Blanket Flower (Gaillardia)
Garden Mum (Chrysanthemum)
Painted Daisy (Tanacetum)

Want to read more?
See Sandra Mason's full article: How plants are affected by cold and winter and how to protect them

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The littlest onion

20/2/2017

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A familiar member of the onion family, the lowly chive (Allium schoenoprasum) is one of the earliest edibles to appear in the garden. Think you know all there is to know about this under-estimated herb?
Chive plant

PHOTO: West Coast Seeds
Mark MacDonald at West Coast Seeds offers details on the origins of this useful plant and cultivation tips to keep your chives growing happily.
Read the article.  While you are visiting this Canadian seed house, browse the other articles in the Garden Wisdom Blog. ​

Oh, and did I mention West Coast Seeds has an inspiring online seed catalogue?  If you fall in love with a plant, watch out for its hardiness, as this is a BC-based seed house. 
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news from the
gardening zeitgeis
t

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A remembered bloom from summer nights

23/12/2016

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A number of my Master Gardener friends enjoyed growing this surprising bloom this year.  As we pass the winter solstice, we are perhaps as far away as we'll ever be from summer nights in the garden. This post celebrates the special curiosity of gardeners.  With thanks to Susan Renaud for her research. 

Have you met Evening Primrose's strange cousin – a plant that only blooms after dark?  What could be more dramatic that blooms that open in an instant, right before your eyes?   It's not time-lapse photography, just the mysterious after-dark trick of Oenothera flava (Night Blooming Primrose). 

Thunder Bay gardener Susan Renaud – a Master Gardenener in Training – shared photos and thoughts about the Oenethera flava she grew this year.  "I have one of our Master Gardeners to thank for the unique experience of watching this unusual plant perform this summer," says Susan. "I managed to snap several pictures during its bloom times and was always fascinated how quickly they disappeared when the sun warmed their faces."
This hardy native plant is among the 145 plant species in the genus Oenothera.  You may recognize the common names of other species, including Evening Primrose, Suncups, and Sundrops.  

Some, according to garden writer
​Liz Primeau, call this plant "D
andelion Primrose or Dandelion-leaved Primrose (because of its lookalike foliage), or Yellow Moonflower."  ​You can clearly see the narrow, serrated leaves (very much like a dandelion) in Susan's picture on the right.

So many names may add to the mystery, but It's worth noting that Night Blooming Primrose is not related to true primroses which belong to genus Primula (Wikipedia).  

​These plants are all native to the Americas, possibly originating in Mexico and Central America.
Oenethera flava
Oenethera flava
Photo: Susan Renaud
Cultivating Night Blooming Primrose
The garden guide on SFGate offers good cultivation advice.  "Night-blooming evening primroses generally prefer full sun and grow best in a bright, sunny spot.  They can tolerate some light shade for a few hours each day, but deep shade compromises growth and flower production.  They tolerate all types of garden soil but prefer sandy, well-drained types.  If your soil contains clay that tends to hold water, add some fine sand at planting time to improve its drainage.  The plants need only an average amount of moisture, although once-weekly watering after setting out new plants can help them get a good start.  Once the primrose has established, avoid giving it too much moisture at the root zone."


Oenothera flava can survive in the northern garden, but low temperatures and a wet spring can be hard on this perennial.  Susan recommends checking the root early in the season.  The offshoots that appear from the root crown often survive, even if the main root dies back.  These root pieces can be potted up to start new plants.

"My NBP grew to a mound of about 8 inches high, with arching leaves and a spread of about 15 inches," Susan reports.  "The bloom stems arched up at about 10 inches. There were about 24 blooms over summer." 

Although the blooms of Oenothera flava fade equickly, there is a magic in their coming and going.  "I, for one, am happy to have had the opportunity to witness this beauty in action," Susan says.
​You can see it too, but watching this video.

Also of interest ...
Read the post about Susan Renaud's garden.
Read about another night blooming plant, Mirabilis jalapa 
'Limelight'

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Chelone is a beautiful late bloomer

28/9/2016

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Autumn carries more gold
in its pocket
than all the other seasons.
 

― Jim Bishop
We love autumn gold – yellow Rubeckia, Goldenrod at the roadside, and tawny leaves on green grass.  But there is another kind of 'gold' to be found in the garden as summer falls away.  I am thinking of Chelone or Turtlehead.  This late-season bloomer is absolutely 'platinum' in my books. 
               I wonder, do you know this attractive native plant?
Chelone lyonii (Pink Turtlehead)
Chelone lyonii (Pink Turtlehead)
Photo: therebloomsagarden.com
Fine Gardening magazine describes Chelone obliqua as a "great mid-border plant."  This native wildflower loves moisture, growing well in partial-to-dense shade with moist soil.  It will even grow in full sun if the soil is soggy, making it a plant to chose for a bog garden.

The Missouri Botanical Garden – another go-to site for solid plant information  – describes Chelone as "a stiffly erect, clump-forming Missouri native perennial which typically grows 2-3' tall and occurs in moist woods, swampy areas and along streams.  Hooded, snapdragon-like, two-lipped, deep rose flowers appear in tight, spike-like terminal racemes from late summer into autumn.  Flowers purportedly resemble turtle heads."  Apparently the plant's name comes from "the Greek word chelone meaning tortoise, in reference to the turtlehead shape of the flowers."   The epithet (the second part of the Latin name) means "lopsided or oblique."
Chelone is, according to Todd Boland of the MUN Botanical Garden in Newfoundland, one of only a handful of ornamental plants that "are purely North American natives."   Chelone is not as well known as our other natives – Phlox, Rudbeckia and Echinacea – but this plant is becoming more popular.

In his excellent factsheet,
Turtleheads–The Genus Chelone, Boland explains that there are only four species in the genus Chelone.  

Chelone glabra is the white flowered species.  Chelone obliqua and Chelone lyonii ​both have pink flowers, but vary in their leaf shape and their native range.  Boland's factsheet helped me examine the characteristics of the leaves on the Chelone in my garden and I am pretty sure it is Chelone lyonii.  A beauty by any name!

Click each map to view the US Department of Agriculture plant profile. ​
Distribution for Chelone obliqua
USDA map for Chelone obliqua

Map from USDA
Distribution for Chelone lyonii
USDA map for Chelone lyonii

May from USDA

Chelone is identified as hardy to Zone 4, making it marginal in the northern garden.  My Chelone did come with a warning about hardiness, but I am hopeful that with leaf mulch and reasonable snow cover, this little turtle will come back again next year.

​Want to more information?
Read more about ​Chelone glabra
Read about Chelone obliqua 
in the Eloise Butler Wildflower Garden, Minnesota.  Excellent images.
Source for Chelone obliqua plants - Ontario Plant Source
Source for Chelone glabra seeds - Wildflower Farm, an Ontario supplier.

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