Tag Archives: cup plant

Fairy Crown #20 – Cup Plant, Joe Pye & Ironweed

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My 20th crown for August 19th had a sweet scent that was meant for the bees, not me, but I did appreciate the soft, vanilla perfume of the dusty-pink, hollow Joe Pye weed (Eutrochium fistulosum) that grows in the parts of my meadow that retain a little moisture. Along with it are the violet-purple flowers of New York ironweed (Vernonia noveboracensis); the big, yellow daisies of cup plant (Silphium perfoliatum); the small yellow blossoms of grass-leaved goldenrod (Euthamia graminifolia); and a few sprigs of rough goldenrod (Solidago rugosa).

The plants I gathered came mostly from my west meadow…..

….. where the New York ironweed and Joe Pye weed make excellent companions, appreciating the tiny extra bit of moisture at the midpoint of our sloping property and maturing at about the same height, 2-3 m (6-9 ft), depending on the season.

I think I bought my first plant at a nursery, but New York ironweed has popped up on our property in soil that was brought in from neighbouring woodlands. Provided it can maintain fairly damp feet, it is happy in our sandy conditions.

Bees adore it, as do butterflies like the great spangled fritillary, below….

….. and the ruby-throated hummingbird is a fan, too.

One of my favourite photos was of a female goldenrod crab spider disguised as an ironweed stamen, just awaiting her unwary prey.

The hollow Joe Pye weed attracts lots of bumble bees. It’s much paler than its spotted (E. maculatum) cousin.

Grass-leaved or flat-topped goldenrod is not a true goldenrod in the Solidago genus, though it was considered part of the gang until recently. It is one of the late summer “weeds” on our property, including near our Waterloo Biofilter septic structure, below, where it definitely emitted a light floral perfume (that was not that of the septic system).

Bumble bees, such as the red-belted bumble bee (Bombus ternarius) below, and other bees seem to love it during its rather short blooming period.

Another abundant goldenrod that occurs naturally on our property is rough goldenrod (Solidago rugosa). Better behaved than its cousin, Canada goldenrod, it is nonetheless proficient at spreading itself around, much to the delight of all kinds of bees.  This species gave rise to the popular garden cultivar ‘Fireworks’.

Finally, a few words about one of the tallest plants in my meadows, cup plant (Silphium perfoliatum).  I was given my first tuberous roots of this northeast native by the gardeners at Toronto’s Spadina House Museum, with a warning that it would be invasive and I might be sorry I planted it.  Fortunately, my meadows are filled with invasives and they all like to duke it out, so for the most part cup plant has been kept in check.  Here it is at the base of our stairs.

My meadows are dry and sandy which also works against its invasive tendencies. But I saw it on a riverbank at the Chicago Botanic Garden, below, and I can say that it would be much more aggressive in the moist soil that it craves.

It’s a great favourite of bumble bees…..

….. and, occasionally, of passing butterflies.

I’ve made up a little video on my cottage cup plants, with a humorously surprising last scene;

Finally, here’s a little August bouquet from my meadows to you… until the next fairy crown.

My Cups Runneth Over (With Bees)….

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(Hmmm. I just re-read my title and almost changed it, but decided not to. Snicker away – I’m going with “cups”.)

My second yellow-gold blog for July (the first was on companion plants for blackeyed susans) honours another composite prairie perennial that has pride of place in my meadows at Lake Muskoka.  Cup plant or Indian cup (Silphium perfoliatum) gets both its common name and Latin specific epithet from the way the leaves encircle the stem, thus making the stem appear to pierce the foliage – i.e. a ‘perfoliate’ habit.

This clasping leaf arrangement creates a kind of ‘cup’ in which water can collect after rains, supposedly providing drinking water for birds and insects. Alas, insects are often found floating in the water, with some experts suggesting that it may actually act as a deterrent against insect pests that might climb up the stem.

While it is a fabulous native, indigenous to moist woods and prairies in much of mid and east North America, including my province Ontario, its tendency to colonize makes it problematic. In fact, though it is classified as “threatened and endangered”in Michigan, it is “potentially invasive” and banned for sale in Connecticut. I received my fleshy roots from the compost bins of Toronto’s beautiful Spadina House gardens, and the gardeners gave me fair warning that it was invasive, and hard to dig up to control its spread. So I don’t; I merely enjoy it and give thanks for it when the bumble bees are nectaring on the big yellow flowers.

Here are bumble bees in action, along with a surprise visitor for whom those itty-bitty leaf pools are no deterrent, when tasty cup plant seedheads are the rewards for ascending that thick stem.

Honey bees love cup plant as well. There are no apiaries near my cottage on Lake Muskoka, but I photographed this one in the meadows at Miriam Goldberger’s Wildflower Farm an hour so south.

Butterflies like the monarch enjoy cup plant, too.


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I grow cup plants near my stairs so I can photograph the pollinators at eye level.

But they’re in my meadows as well. Though they prefer adqequate moisture in the soil, they are surprisingly drought-tolerant (as they’ve had to be this hot, dry summer), but will develop yellow leaves and stunted flowers in time. Here’s a colony below my bedroom window amidst sweet blackeyed susans (Rudbeckia subtomentosa) still to come into flower.

They make good companions to gray-headed coneflowers (Ratibida pinnata), which bloom at the same time.

They are easily the tallest perennials I grow. Last summer (a season of good rains), I lay down the loftiest stems so I could do a measurement. Yes, 9 feet.

I leave you with a little narrated tour…..

….and a cottage bouquet showing cup plant flowers in the bottom tier, surrounded by summer flowers like ratibida, perovskia, liatris and goldenrod.  Yellow/gold for July 2016, over and out.

Bouquet-Cup Plant & friends