Hardy Acaulis Primroses

Two store-bought large-flowered Danova primroses, white and dark blue, have proved surprisingly hardy, coming back after three winters so far.  The white has increased, while the blue has just survived.

Acaulis (stemless) primroses are hybrids that have Primula vulgaris form. The flower stalks (pedicels) are not attached to a central stem, like those of Primula veris, Primula elatior, and polyanthus hybrids. (For example, see Barnhaven‘s selection; and buy some seeds.)

 

 

In their first spring, I pollinated blue onto white (the white is pin-eyed, the blue is thrum -eyed). From those seeds came a variety of pinks and purples with the same large flowers.  So far, most appear to be more robust than the blue pollen parent, and some may out-grow the white seed parent. Can primrose hardiness be rated on a colour scale? From observations in my garden, I rank them hardiest to least hardy in this order: dark reds, reds, pinks, whites, yellows and oranges, blues, purples. (The purples I mean here are Amethyst Cowichan purples, not the pink and lilac purples of these Danova hybrids. It is difficult to keep an Amethyst Cowichan alive here. Barnhaven’s new Pixies, with Amethyst Cowichan parentage, may prove to be a worthwhile alternative. The few I have tried are certainly more robust. )

 

 

There were no seeds in 2018. Summer was too hot and dry. Last year, I got more seeds from the white, and from two or three of the pin-eyed purples. There will be more pinks and purples, as well as maybe some lighter shades (from white x purple), or even a blue. These plants bloom twice, first in early spring and again in late summer. August is when I expect next year’s new seedlings to produce their first flowers, from seeds started this week. Join the American Primrose Society now, and you can start some, too.

a family of Danova acaulis primroses (and a yellow polyanthus)

 

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I Beg Your Pardon, I Never Promised You the Taj Mahal

Early days at the Aga Khan Garden, U of A Botanic Garden.

Well, here it is, the University of Alberta Botanic Garden’s new megafolly — a monument to No Swimming Or Wading. Signs are everywhere.

The Aga Khan Garden is named in honour of the globe-trotting super-rich spiritual leader, philanthropist, and racehorse collector, “K” to his friends, whose $25 million gift paid for the stones and the earth-movers and cranes. In October, 2018, he attended the inauguration, a “dream come true,” with a train of dignitaries — politicians, diverse local eminences. “Now we have one of the most elegant and beautiful gardens in Canada, and I would suggest maybe the world,” Premier Rachel Notley told the dignitariat. She knows she’ll be quoted, and inciting the desires of prospective tourists is her job. But this was not the Alhambra. Was it even Little Alhambra on the Prairie?

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Contemplate. Twenty massive stone pillars supporting nothing.

Give it five or so years, in fairness. Let plantings fill the beds and grow up to hide the exposed concrete, let shrubs and groundcovers subdue the chip mulch. After the surrounding orchard has reached mature height, the Aga Khan will still preside over the other gardens, but maybe its dominance won’t be so stark and jarring. Still, it’s hard to imagine how it won’t permanently change the character of the whole area. With its channelled, flow-controlled water courses and its smooth-cut and precise-angled stonework, paved walkways and straight-edged lawns, it is a formal urban garden dropped in among country gardens. Would it have fit better somewhere on the University of Alberta campus, or in downtown Edmonton?

Among the Aga Khan Garden’s many ingenious water features, the modern public toilets installed below the deck will be a most welcome addition to the UABG.

The Aga Khan Garden will demand levels of care and maintenance not bestowed on its neighbours — apart from the Kurimoto Garden, which is in a separate and secluded space. Neglect and dereliction commonly seen in the Primula Dell and the Patrick Seymour Alpine Garden — where long-established plants, that in any other botanic garden would be treated as treasures, are allowed to die in a hot, dry season, become inundated by ants, or suffocated in weeds — will not be a feature of the Aga Khan Garden, we can be fairly confident. And could this be the AKG’s saving grace? If the crowds do come, and pay the increased admission fees, could there be money to pay for proper maintenance, and even improvements, in the other gardens?

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The exercise yard at a minimum security prison? No, an ornamental gate on one side of the Aga Khan Garden.

Through the woods behind the upper deck’s twenty bleakly bare and weirdly unsupportive pillars lies the Kurimoto Japanese Garden, another space designed for meditation and contemplation. Can a garden visitor be invited to indulge in too much contemplation? I guess not. But is there a risk of the U of A Botanic Garden becoming a botanic garden in name only as it transforms into a Global Centre for Contemplative Experiences (Non-Swimming, Non-Wading) and Wedding Photo Inspirations?

(Come on, K, is there a more blissfully contemplative experience than massaging one’s bare feet in a bed of sharpish granite and shell sand while wading in ankle-deep water? K, you own a private Bahamanian island, you know what I’m talking about.)

This little frog obeys the No Swimming Or Wading signs.

This little frog did not.

As long as they don’t turn the alpine gardens into the Zuckerberg Self-Surveillance and Miniature Golf Paradise, I will continue to visit.  (Now I’ve put the idea out there, I have a bad feeling.)

Before we get to the alpines, there is more new architecture and design to look at, quickly, in the new parking lot.

Here, the juxtaposition of an attractive cement wall and a couple of Dollarama-green plastic-clad bollards anticipates the challenging aesthetic clashes to be found in the Aga Khan Garden, where ornate metalwork meets chip mulch.

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Has this parking space been left vacant, shunned, because it looks too small? It is actually full-size. The one opposite looks the proper size but is actually extra wide.

The UABG’s new parking lot was paid for by the people of Alberta. However, it has not been named The People of Alberta Parking Lot.

The content of this blog post would be very different had more of my pictures been clear enough to share. I don’t know what happened, but I took a lot of blurry pictures (see above) with a camera that is usually reliable. I am not a photographer but a camera-user. Anyway, on to the plants.

We’ll start in the Patrick Seymour Alpine Garden with this fine, flourishing example of Campanula rotundifolia, the harebell, a wildflower here and in many parts of the world. A botanic garden serves a useful purpose when it demonstrates for local gardeners how well native plans can work as garden ornamentals. Looking at this, you might wonder, where is the rotund foliage? The basal leaves are round or heart-shaped, and visible in spring before the flower stems arise.

Campanula rotundifolia

Growing among the gravel, apparently self-sown, are many viola, dianthus, and veronica. This cyclamen-leaved violet, or Korean violet (Viola grypoceras, the internet informs me), is either recently planted or hardier than the seedlings I’ve raised. I’m going to have to try again.

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I have this Dianthus, grown from seed acquired from this very garden, several years ago when the fundraising group, Friends of the Garden, used to sell seeds.  I didn’t retain the name. Is it D. carthusianorum?  It’s a good self-sower at the UABG. I have just one, and this photo reminds to start some of the seed I collected from it last year.

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I would grow this. Is the name correct? Onosma taurica. A quick web-search says it is. Another way a botanic garden can be useful to local gardeners — if the names on the ID stakes are correct, which is not something you can count on at the UABG.

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I would grow this, too. Veronica allionii. I’ll be looking for seed.DSCN0569

This little Primula marginata is in a happy place. P marginata is an early spring bloomer. Some years, the flowers may be finished before the garden gates open in May.

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This Primula marginata has been overwhelmed by a rampant Persicaria. Rescued, it could be replanted in a crevice on a north-facing slope, in an alpine trough, and/or in the rebuilt tufa bed. Speaking of which, there were signs of activity (clearing, site preparation) on the under-planted west side of the alpine garden. Could this be the new location for the tufa bed? Or will it be restored to its former location, in the lawn beside the gift shop? Anticipation for the return of the tufa bed now rivals, and may even exceed, that which preceded the opening of the Aga Khan Garden.

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The stacked boulder slabs in the north slope of the alpine garden provide niches where a gardener can tuck little plants. A spot like this would make a good (sheltered and fairly shady) habitat for Haberlea rhodopensis or Primula marginata. The Hens and Chicks and Draba residing there now could probably go in a more exposed, sunnier spot.

I started making this post many months ago. These photos are from 2018. In 2019, we did not visit the UABG. I’m sure we’ll go next year — looking forward, as always, to changes and improvements. The return of the tufa bed, restoration and expansion of the Primula collection (with accurate signage) — too much to ask? (K , buddy, they might listen to you. If you have read this far, maybe you care. Another, say, $25,000; what would that be? A few coins in a wishing well.)

Final pictures. Highlights: that very happy pondside Persicaria; more black-budded Dianthus; Martagons rebounding after the brutal summer of 2017; Astilboides tabularis in the Primula Dell.

Primulas, and a Gentiana acaulis in the Primula Dell

Posted in Aga Khan Garden, alpine garden, alpines, Devonian Botanic Garden, in and around Edmonton, primula, University of Alberta Botanic Garden | Tagged , , , , | 1 Comment

Auriculas of 2019, Part 3: Named Cultivars

Crimple (greenhouse)

In early spring, when the gardens had begun to thaw, I lifted auriculas, potted them, and moved them into a greenhouse, where I could hand-pollinate and make careful crosses. Many of these plants bloomed well. But the greenhouse soon became hot, even with the door open, even under shade cloth, and even though it was a relatively cool, cloudy summer. The plants suffered, later blooms were poor and seed-set much less than might have been.

In the greenhouse, along with Crimple, above, here are Border Patrol (orange), Deal (orange fancy), Angel Islington (blue self), Bright Ginger (orange self), Fluffy Duckling (stripe), and Mary Poppins (purple fancy).

 

And in the ground, these are Dilly Dilly (purple alpine), Curry Blend, and Kingscote (pink).

 

This tub of offsets, taken the previous summer and kept over winter in a cool, lighted basement room, should have been planted out in the spring before the plants became overcrowded.  (Clockwise from top right: Bold Tartan, McWatt’s Blue, Crimple, Curry Blend, Regency Paperchase, Fabuloso, Mary Poppins.)

winter offsets 2018-19

In this instance, the gardener’s laziness may have led to a useful discovery. It was summer now (this photo was taken 30th of June), and these plants stood up to the weather much better than the potted plants in the greenhouse.  A plan for next year, then: pot up auriculas in early spring and bring them into the greenhouse; hand-pollinate the early-bloomers; and when the greenhouse gets hot, move the pots into a shaded cold frame. Why into a cold frame and not out in the open like the blue tub? Last year, a lot of Primula seed pods were hollowed out by insects. These summer bloomers were not affected. Because the insects’ feeding season (larval growth stage) had passed, perhaps? In the open, the developing pods could be covered with little drawstring DIY teabags or small party favour pouches — cheap from China on ebay. Even with this protection, they might be better off under cover, as the little bags could become sodden after a rain and perhaps heavy enough to bend a stem. Ideally, the pods are dry and exposed to fresh air, not bundled in wet gauze.

So, another new year, another new plan. Could 2020 be the year the new plan succeeds?

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Auriculas of 2019, Part 2: New Farinose Reds

Three years ago, an auricula-growing friend saw this unusual plant here on the blog, and commented on the farina-dusted flowers. The previous spring, I had pollinated a few flowers with a blue self auricula, hoping to produce farina-dusted blues and purples. I sent him some seeds and started a few myself. A superior grower, he soon had plants in bloom and sent pictures of dark red flowers, many with farina sprays or a wire edge on the petals, a few on rather tall stems. This spring, my seedlings came into bloom and are much the same. It’s hard to see definite influence of the blue self. Certainly the colours are stronger in the new seedlings. Perhaps the seeds were a product of self-pollination. Or maybe the blue will show up in the next generation. I started some seeds today.

 

The original parent plant began a fast and fatal decline the year after I took seeds from it, and it is now gone. It had been an old plant by this time and the soil it was growing in may have been too wet and compacted for too long. So I am glad to have this small collection of offspring. I will grow out a dozen or so plants from their seeds, make crosses with the best, and carry on. At some point, I would like to have good red pollen parents to cross with the farina dusted purple border auricula Starling.

 

 

 

 

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Strep Notes 2019: New Seedlings from Named Cultivars

Cherry Roulette

One of these five seedlings, below, from seed out of Cherry Roulette, above, was the best new seedling I raised this year. I’ll let you decide which one. The others show some of the variation produced among the few new seedlings I had space to grow out. Cherry Roulette’s seedlings can be beautifully formed, or they can be malformed in different ways. Typical flaws are flowers that don’t open fully or evenly (having one or more short, under-developed or slow-to-develop petals); trumpet-shaped flowers; missing, distorted, or broken reproductive parts. Not shown here, because I neglected to photograph them, are some very good reds, light pinks, dark purples, and a halo type, pale pink where Cherry Roulette is dark red. It is certainly worthwhile to pollinate Cherry Roulette from a wide range of flowers. Not every seedling will be worth keeping, but that is true of any packet of Strep seeds. The defects in some Cherry Roulette seedlings are more obvious, and decisive, than is usually the case.  Colours and markings are generally good, sometimes very fine, often strong and striking.

 

Plants in this next group are raised from a seed mix out of several named cultivars, pollinated with other named cultivars. The bicolor streps used as pollen parents are often female sterile, as are most of these seedlings. Are any of these worth keeping, given that I will need space to raise a new group of seedlings next year? If I have to choose, I like the dark purple over yellow with lighter blue upper lobes. I will keep the plants with fertile flowers at least a year to produce seed.

 

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DS Neznyi Angel, above, is female infertile, but once produced a small pod of around 25 seeds. (Read about it here.) Below are the flowers on some of those plants. Most were vigorous plants with lots of big blooms. Around a third were fertile, and I am now collecting seeds that will grow into Neznyi Angel’s grandchildren.

 

 

Along with a mix of seeds from the ex Neznyi Angel seedlings, this winter I will start seeds from 2019’s Named Cultivars Mix, and from the all white DS 1289, white and blue Full Moon, and speckled Hototogisu (below). If I raise around 25 of each, that will make a fair sample, and the new seedlings will take up more space than I have. Started now (early November), they will begin to bloom in April or May. Check back here in another year to see the results.

 

 

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