Home of the Practically Perfect Pink Phlox and other native plants for pollinators
Showing posts with label nectar robbers. Show all posts
Showing posts with label nectar robbers. Show all posts

Wednesday, March 27, 2019

Wildflower Wednesday: White Trout Lily

Welcome to Wildflower Wednesday and a celebration of one of my favorite spring ephemerals, the White Trout Lily.


Erythoniums is a genus of Eurasian and North American plants in the lily family. Of the nearly 25 species found in North America (mostly in western USA)  only 4 are found in Tennessee.  Those are: Erythronium rostratum, Erythronium umbilicatum, Erythronium americanum and Erythronium albidum.  Erythronium americanum, the yellow flowered trout lily (above) and E albidum the white flowered trout lily, are both found growing in Davidson county, TN where I live. The yellow flowered seems to be more abundant and on a recent walk I spotted them in bloom at the Warner Parks.

 I feel so lucky to have found White Trout Lilies growing in my garden. I've seen small colonies in nearby woodlands and in a neighbors small sloped side yard. Of course, I hoped the flowers would be white not yellow. Don't get me wrong, I would have loved the yellows, but, there's something extra special about these sweet white flowers.
When mature they gain a second basal leaf with a flower growing from the top of a long stem.
E albidum grows into large colonies with a lot of immature leaves and just a few flowering plants. My neighbor's colony is large and has at least a dozen blooming flowers this year.

My colony is much smaller, but is growing a bit larger every year. I have one flower this year. In fact, I've never had more than one at a time, but, I remain patient. According to research at Friends of Eloise Butler Wildflower Garden only 1% of the White Trout Lily colony flowers at one time. That's not many, but, imagine how lovely it would look if the colony was large enough to cover a forest floor.
From Prairie Moon Nursery
Isn't she lovely.

 The white six petaled flowers curve backward with the the bright yellow stamens nodding downwards. The inside of the flower’s petals are white, and the back of the petals are a mix of soft gray, brown, pink, and blue colors. It's been suggested that the nodding flowers might discourage nectar robbers from stealing the nectar without pollinating it. A practice that makes sense when you consider that this ephemeral has a short time to bloom, get pollinated, go to seed and go dormant.

White Trout Lily is commonly found in moist to mesic deciduous hardwood forests/woodlands from southern Ontario to Texas and much of the eastern USA except North and South Carolina. As hinted above, spring ephemerals have a lot to do in a short period of time and a steady winter diet of sunshine is an essential for their survival in a woodland.
Andrena erythronii bees are oligolectic bee on Trout lilies

Like other spring ephemerals, White Trout Lilies are a vital food source for pollinators at a time when there is little food available. The flowers are primarily pollinated by both long-tongued and short-tongued bees, including honeybees, mason bees, cuckoo bees, digger bees, Halictid bees and  Halictus. The bees suck nectar from the flowers; honeybees and short-tongued bees also collect pollen or nectar and ants feed on the elaiosome that surrounds some seeds. Their thick, fleshy, nutrient and carbohydrate rich corms, roots and tubers are especially attractive to white footed mice, chipmunks and voles. (source)



I am happy to have found them in my garden. I try to keep them safe from voles, mice and deer. A few years ago the small colony that I was so proud of was decimated by voles. They are bouncing back, especially, after I planted a flowering plant I found at a wildflower sale. It was pollinated and seeds were spread. That one planted flower is blooming again and if it gets pollinated there will be more seed to help the colony spread.

WTL also spreads vegetatively~The underground roots bud off new plants. So let's hope that the ants will spread the seeds and in only a few seasons, my small colony will be larger with a chance of more than one flower. Fingers crossed.

Before I go, here's some really cool info: It's been hypothesized by R Muller (1978) that spring ephemerals like White Trout Lilies have an additional important job besides providing food for pollinators. They take up nutrients like nitrogen and potassium in their roots, leaves and stems that would wash away in spring rains or melts and as they die back they release these "saved" nutrients back into the soil for vigorously growing plants to use. This is referred to as vernal dam hypothesis.

So know that when you add spring ephemerals like WTL into your garden, you are giving goodness back into your plant communities, while getting some beautiful flowers! That's a darn good bargain.
Now, let's all get out there and look for spring ephemerals!
xooxogail


The particulars

Lily family (Liliaceae)
Common name: White trout lily, white fawn lily, white dogtooth violet.
Botanical name: Erythronium albidum
Type: Perennial herbaceous, spring ephemeral. In the short period of time before the tree canopy emerges and blocks the sunlight, ephemerals like trout lilies, must grow, leaf-out, flower, be pollinated and produce seeds. This is called the epigeous or above ground growth phase. Once they fade they enter the hypogeous, or below ground growth phase when roots and buds are busy developing. 
Flower: White with a yellow base; bell shaped; early spring.
Foliage: Tulip-like and green with silvery markings, appearing singly or in pairs at the base of the flower stem. Looks like speckled trout and that is how it got one of its common names. Foliage dies back during summer.
Habit: Low-growing ground cover, 4 to 8 inches tall. Grows from corms (bulb-like underground storage stem) and slowly spreads to form large colonies.
Season: Early spring.
Range: Woods and prairies from southern Ontario through the Mid-Atlantic and Midwest to eastern Texas.
Cultivation: Grow in partial to full shade, in moist humus-rich soil. Prefers dappled sun in spring (important that it gets enough sun in spring) and heavier shade in summer. If available plant corms in fall. Do not dig from woodlands. If a friend wants to share be aware that the corms can be more than a foot underground.
Comments: Early spring bloom; ease of care if conditions are right; naturalizes in shade.



Welcome to Clay and Limestone and Wildflower Wednesday.  This day is about sharing wildflowers and other native plants no matter where one gardens~the UK, tropical Florida, Europe, Australia, Africa, South America, India or the coldest reaches of Canada. It doesn't matter if your WW star of the month is blooming or not, after all it's winter for many of you. It doesn't matter if we sometimes share the same plants; how they grow and thrive in your garden is what matters most. Leave a comment and a link with Mr. Linky.



Gail Eichelberger is a gardener and therapist in Middle Tennessee. She loves wildflowers and native plants and thoroughly enjoys writing about the ones she grows at Clay and Limestone. She reminds all that the words and images are the property of the author and cannot be used without written permission.

Monday, July 11, 2016

The nectar robbers are at it again.

Carpenter bees are notorious nectar robbers. That big body makes it hard to fit into many flowers and they will drill or cut into the corolla of a plant to get at the nectar. It looks like the stinkers are getting nectar without a pollen transfer which messes with the mutualism that one expects with pollination.

Today, as I watched a beautiful carpenter bee work its way around the flowers of  Phlox 'Jeane', I wondered if the nectar of that flower could be depleted and what effect that might have on pollination and other visitors?
I wondered what affect this would have on pollination

So I did a little research.

It was always assumed that nectar robbers had a negative impact on the plants that they visited, but that is not necessarily true. The authors of a paper published in the Ecological Society of America Oct 2000 examined the last 50+ years of research on this subject and concluded that nectar robbing could have a beneficial or neutral effect. Here's what they said, "The effects of nectar robbers are complex and depend, in part, on the identity of the robber, the identity of the legitimate pollinator, how much nectar the robbers remove, and the variety of floral resources available in the environment." If you want to read more follow my highlighted link above.
Carpenter bee zeroing in on the nectar machine P paniculata 'Jeana'

I have no idea what effect nectar robbing will actually have on P paniculata 'Jeana'. She is after all a nectar machine! Last summer she was covered with Swallowtail butterflies, skippers, hummingbird moths and bees for almost 6 weeks.

I am hoping that a little nectar robbing now doesn't rob me of the pleasure of watching all her pollinator visitors the rest of this summer!

xoxogail

Gail Eichelberger is a gardener and therapist in Middle Tennessee. She loves wildflowers and native plants and thoroughly enjoys writing about the ones she grows at Clay and Limestone. She reminds all that the words and images are the property of the author and cannot be used without written permission.

Wednesday, July 22, 2015

Wildflower Wednesday: Summer Phlox

I count on the different species of Phlox for several seasons of delightful color starting in early spring.
Right now Summer Phlox is blooming in various shades of pink and magenta.
There are even a few of the white flowered 'David',
a lovely striped 'Peppermint Twist' that wants to revert to a favorite parent color, and
a newer cultivar, 'Jeana' that is an absolute delight. I am not alone in thinking she's a marvelous addition to the garden, every Swallowtail in the neighborhood has stopped by for nectar.
The first Phloxes in this garden were here when I arrived. They were the offspring of whatever the previous gardeners might have planted 30+ years ago and were all wonderful magenta flowered beauties. They are still here, well, the offspring of the offspring are still here and after years of letting species and cultivars go to seed, real treasures have been produced in the crossings of the crossings.
a crossing produced this gentle pink
 What do you think of these two very different pinks? (photos above and below) I adore them and, in case you wondered when I would get around to pollinators, they love them, too.
This is a luscious color
Speaking of pollinators. Carpenter bees are frequent phlox visitors, but, their big bodies makes it hard to fit into the flowers so they will drill or cut into the corolla of the phlox to get at the nectar.
look out for the nectar robbers
They are cheating the pollination process when they get the nectar without a pollen transfer! They're robbing the nectar, but there's still plenty for other pollinator visitors.
Butterflies, moths (including Hummingbird and Sphinx moths) and skippers are the primary pollinators of phlox. Their proboscis are long enough to reach the nectar at the base of the narrow phlox corolla and pollen is carried to the next flower.  

Phlox has all the characteristics of a classic butterfly nectar flower.
  • clustered flowers with a landing platform
  • brightly colored
  • open during the day
  • ample nectar producer 
  • nectar deeply hidden in corolla


If you want to attract butterflies, moths, skippers and other pollinators to your garden then plant more phlox! That's what I've been doing. Phlox paniculata 'Jeana' was planted this spring and I have every intention of planting more of that cultivar. She rocks as a butterfly magnet. You can find species Phlox paniculata at many native plant nurseries including GroWild here in Middle Tennessee or from mail order nurseries like Prairie Moon.
Hummingbird clearwing moth

 If you want to see what kind of offspring you can get from all the cross pollination that will be happening, then don't deadhead your plants, let them go to seed and self sow. The parent plants always bloom true, but seedlings will be a pleasant surprise of mixed colors for your garden.
Have fun out there and keep cool!
Happy Wildflower Wednesday
xoxogail

The particulars
Type:  Herbaceous
Sun Exposure:  Full Sun to partial Shade
Bloom Color: Jewel box of colors
Bloom Time:  Mid Summer to late Summer/Early Fall
Hardiness: From Minneapolis to the Gulf Coast. They've escaped from gardens and naturalized
Wildlife Value: This plant is attractive to bees, butterflies, moths and skippers
Flowers: Fragrant
Water Needs: Water regularly, good drainage
Soil: Rich, moist, well draining. Enrich clay soil with humus and compost.
Care: Divide occasionally. Phlox are susceptible to mildew and phlox bugs make sure they have good air movement and each fall, after the first killing frost cut it to the ground and trash the cuttings, this will keep the mold spores in check since they can over winter in the stalks as well as  eliminating any phlox bugs that might be over wintering in the stalks. 

Welcome to Clay and Limestone and Wildflower Wednesday.  This day is about sharing wildflowers and other native plants no matter where one gardens~the UK, tropical Florida, Europe, Australia, Africa, South America, India or the coldest reaches of Canada. It doesn't matter if we sometimes share the same plants. How they grow and thrive in your garden is what matters most.



Gail Eichelberger is a gardener and therapist in Middle Tennessee. She loves wildflowers and native plants and thoroughly enjoys writing about the ones she grows at Clay and Limestone. She reminds all that the words and images are the property of the author and cannot be used without written permission.

Monday, June 15, 2015

Pollinator Week: Xylocopa virginica

 Pollinator Week  has been proclaimed throughout the land! Here to help us celebrate is one of my favorite pollinators, the Eastern carpenter bee.


Five interesting facts about this gentle giant.

1. These big beautiful, noisy bees are excellent pollinators. In fact, they are being studied across the globe for pollinating green house crops like passionflower, blueberries, greenhouse tomatoes and greenhouse melons.


2. They are generalist foragers and are known to pollinate garden crops and garden plants. Like eggplant (Solanum melongena), tomato (Solanum lycopersicum), passion fruit (Passiflora edulis) and other species in that genus, cucurbits (Cucurbita spp.), cassias (Cassia spp.), Carolina jessamine (Gelsemium sempervirens), cigar orchid (Cyrtopodium punctatum), bee balm (Monarda spp.), aromatic sumac (Rhus aromatica), and wild lupine (Lupinus perennis).

 
cheating pollination!

3. They are buzz pollinators - meaning they use vibrations, or sonication, to release pollen grains from the flower's anthers. To release pollen carpenter bees are able to grab onto the flower and move their flight muscles rapidly, causing the flower and anthers to vibrate, dislodging pollen. About 8% of the flowers of the world are primarily pollinated using buzz pollination. Wildflower gardeners~all Dodecatheon are buzz pollinated! Eggplants, potatoes, tomatoes, blueberries and cranberries are also buzz pollinated.

large open faced flowers rich in pollen and/or nectar are favorites
4. They typically visit flowers that have large, open-faces with abundant nectar and pollen; bloom during the day; are pale or saturated in color; have a fresh odor; anthers specialized for pollen collection by bees; and corollas with strong walls.

5. They are nectar robbers and cheat the pollination process by breaking open the sides of flowers, like salvias and penstemons to get at the nectar! 

Bonus info. The menacing/dive bombing carpenter bee you encounter is only protecting a nest. It's a male drone and he's all buzz and no sting!

There's probably no other bee that arouses irritation quite like this gentle giant. Just search "carpenter bee" and you will get hundreds of thousands of 'results' and almost all are about how to get rid of them.

They're very cool critters even if when they tunnel into your deck/front porch/garage and I love them even though they have tunneled into my front porch deck! They are now nesting in several large cedar stumps that I have placed around the yard....YIPPEE!

Happy Pollinator Week where ever you garden!xoxogail

PS In case you need a reminder! Please, never, ever, ever, ever, ever use pesticides in your garden. The pollinators will thank you by taking up residence and pollinating your fruits, vegetables and flowers!

 Gail Eichelberger is a gardener and therapist in Middle Tennessee. She loves wildflowers and native plants and thoroughly enjoys writing about the ones she grows at Clay and Limestone. She reminds all that the words and images are the property of the author and cannot be used without written permission.

Thursday, May 22, 2014

Nectar Robbers


Carpenter bees are notorious nectar robbers. Their big body makes it hard to fit into some flowers and they will drill or cut into the corolla of a plant to get at the nectar.

The stinkers are cheating the flowers; they get the nectar without a pollen transfer. I am not too worried, pollination must be happening, there are plenty of offspring.

The next time you're in the garden check the corollas on the tubular plants (penstemon, salvia, cuphea) for evidence that the nectar robbers have been there.

xoxogail

PS You can read more about Carpenter bees here and here.


Gail Eichelberger is a gardener and therapist in Middle Tennessee. She loves wildflowers and native plants and thoroughly enjoys writing about the ones she grows at Clay and Limestone. She reminds all that the words and images are the property of the author and cannot be used without written permission.