Showing posts with label habitat. Show all posts
Showing posts with label habitat. Show all posts

Wednesday, January 10, 2018

Montevideo Butterfly Garden Design

***This Blog Post is a work in progress. I will update it continuously as I learn more. 
Voy a traducir este artículo al español.

Acknowledgment: The information in this article comes from what I have learned over the last 9 years, studying with Tree Stewards of Arlington and Alexandria and Taller en Verde in Montevideo, meeting and studying the work of Doug Tallamy of University of Delaware, and meeting and studying the work of Gabriela Bentancur in Montevideo. I've also spent countless hours scouring the internet for information on butterfly/plant interactions, and planting butterfly host and nectar plants and observing the results. 

I'm currently living in Uruguay. I'm studying Sustainable Landscape Design with Lucia Ifran. The class is called Taller en Verde, a class about designing gardens with native plants.  While a vast majority of Uruguay's land is devoted to pasture for cattle, cash crops like sorghum and agroforestry for paper pulp, a growing number of landowners are realizing the role native plants play in ecosystem and biodiversity support. The plant nurseries are slow to catch on, as usual, and so they are still carrying the usual Chinese, European, African and Australian exotics that perform so well here. As I learn of nurseries here in Uruguay that supply natives, I'll post them below.

My main goals in garden design are biodiversity support and greenhouse gas mitigation for climate stabilization. Greenhouse gases, especially carbon dioxide, are absorbed by plants. The advantage of large woody plants like trees and shrubs is that they take up more carbon dioxide and hold it in the form of wood. The longer the wood remains in the form of wood, the longer the carbon dioxide is kept out of the atmosphere. When it is chipped, burned and decomposed, it releases its carbon dioxide back into the atmosphere. When I learn about large, long-life trees that are also host and food plants for wildlife, those are the ones I most promote by planting them myself and encouraging others to plant them as well. 

Whenever I move to a new country, every three or four years, I start learning about the local native plants. Even if I don't have a garden, as was the case for four years in Rome, I learn as much as I can about the native plants, butterflies and birds so I can talk to people about the value of choosing native plants for garden design.

For the past year and a half, I've been studying the plants and butterflies of Uruguay. I have a large garden to experiment with. Currently I'm planting different kinds of passion flower to host the Gulf Fritillaries.  I can't get enough of the local small, tender-leafed local variety, because it's not for sale in the nurseries, so I've planted some of the larger leafed Brazilian passion flower next to it.  The local variety is loaded with eggs and caterpillars, but they are about to eat it all up.  I've only seen one egg on the Brazilian plant, and none of the caterpillars have moved over to it yet. Maybe they will migrate over in desperation in the near future. Update: there are now many eggs and and caterpillars on the Brazilian Maracuja' vines. 

The main purpose of this article is to share what I've learned about gardening for biodiversity and climate in Uruguay, and encourage others who have a ranch, garden, patio, balcony or even just a window box, to plant as many native plants as possible. 

When you plant natives for wildlife, don't forget that if you plant it, they will come.  And they will eat.  The appearance of caterpillars munching on your leaves is a sign that you've chosen the right plant for the right place. If they look like they're going to eat the whole plant, buy more plants.

Try to keep your garden a little messy.  Remember that the insects and birds you're supporting use the leaves, grass and shrubs as food and shelter. Don't mow the grass too often, and let the leaves remain under trees and shrubs.  If you rake and toss the leaves, you'll be throwing away the developing butterfly chrysalises you are nurturing.


Butterflies of Montevideo and their host plants

The Gulf FritillaryAgraulis vanillae

Espejitos on Lantana

Source: User:ComputerHotline/Wikimedia Commons
Locally called "Espejitos", this is one of the most common butterflies in Montevideo.  Their only caterpillar host plants are species in the Passiflora genus. Each regional version of this butterfly tends to prefer its local species of Passiflora, whether it be Mburucuya in Uruguay (Passiflora caerulea), Maracuja' in Brazil or the Maypop purple passionflower in Florida. The adult butterflies will take nectar from Lantana flowers.  Therefore, the best way to attract the Gulf Fritillary and support its life cycle, is to plant a lot of the local Passiflora vine, and several Lantana shrubs nearby. My gardener doesn't want the vine growing on the front fence, so he's constructing bamboo pyramid structures to support the vines away from the fence.
According to Mariposas de Uruguay by Gabriela Bentancur Viglione, the Passiflora is the host plant for several butterfly species in the Nymphalidae family here in Montevideo, such as the Hortensia, with brown and yellow spots, and the Juno and Julia, with similar orange coloring to the Espejitos, but with black stripes instead of spots. Erato is another butterfly in Uruguay dependent on the Passiflora. The Erato is black with two red splotches and two white stripes.
The favorite sources of nectar for Espejitos are Verbena and Lantana. 

Southern Monarch, Danaus erippus and Emperatriz, Danaus eresimus 

Southern Monarch Source: Wikipedia

Both of these are cousins of the North American Monarch, Danaus plexippus, and like the Monarch, their caterpillars feed exclusively on milkweed species, Asclepias sp. The chemicals in the milkweed are what give Monarchs their superpower of being poisonous to birds who ignore the warning of their coloration and try to eat them. In Montevideo, the local milkweed is hard to find, and not usually available for sale. The butterflies have adapted to the alien invasive milkweed from Africa, the Asclepias physocarpa or "Globitos", named for its little green balloon seed pod.  You can plant these in your garden if you find some.  They spread easily from seed once they get started. My teacher says they're terribly invasive in Uruguay and she has some trepidation in recommending them as Monarch host plant. She says if you must plant it, dispose of most of the seed pods and only keep one or two to propagate next year's crop.  But she says the best thing to do is find the local milkweeds, Asclepias mellodora, "Yerba de la Vibora" and Asclepias curassavica, "Flor de Sangre". I haven't found any yet.

Peacock, Junonia genoveva
Peacock Source: Wikipedia
The local name for the Peacock butterfly is "Pavo Real".  It is similar to the Tropical Buckeye and the Mangrove Buckeye. It thrives in uncut grass and the weeds that grow in it.  Try to leave a large area of your lawn uncut. Divide it into two patches. Alternate mowing one patch each month. That way each patch gets cut only once every two months. That gives the butterflies enough time to complete their life cycle of laying eggs, hatching, caterpillar, chrysalis and then emerging as butterfly. Some landscape management guidelines recommend only mowing once, in late fall, using a high blade and leaving the cuttings in place.

To help the Pavo Real, you can plant Ruellia brevifolia and Ruellia tuberosa. Antother plant that is mentioned is Blechum, or Green Shrimp Plant.  It seems to be also one of the Ruellias.  It's hard to find in nurseries, and seems to be a garden weed.  The preferred nectar of the adults is Verbena.

Other butterflies that use Ruellia as their host plant in Uruguay are Mbatara' (dark brown with white spots), and Princesa Roja (dark brown with red center and white spots). Princesa Roja is found in Maldonado. I'm not sure if it can be seen in Montevideo. 


Painted Lady, Vanessa braziliensis
Vanessa braziliensis by Sandro Salomon
https://creativecommons.org/licenses/by-sa/3.0/legalcode

The local name for the Painted Lady is Vanesa. Its larval host plants are Marcela, Achyrocline saturoides and Malva Real, Malva parviflora. 
The adult butterfly visits Lantana for nectar.







Bataraza, Ortilia ithra
Mariposa Bataraza
by Flicker Hive Mind User Gustavo Fernando Duran
https://creativecommons.org/licenses/by-nc-sa/2.0/legalcode



The host plant of this brown spotted butterfly is Ruellia, possibly R. coerulea and R. simplex.
The nectar plant preferred by the adult butterflies is Dicliptera tweediana, or Canario Rojo, which should be available in nurseries, but I haven't found it yet. Many photos on the internet show Bataraza nectaring on Lantana.




Diablito, Pyrrhopyge charybdis
Guayabo and other Myrtaceae
Laurel, Ocotea acutifolia

Polydamas, Battus polydamas
Aristolochia triangularis "Isipo Milhombres"

Mariposa de Peñarol, Heraclides Thoas and Mancha Rubi, Heraclides anchisiades
Both of these large black butterflies, each with their yellow stripe or red spot feed on Rue, Tembetari and the citrus trees lemon, orange and mandarin.

Panambi Moroti or Bandera Argentina, Morpho epistrophus
I mention this butterfly because, even though I've never seen it in Montevideo, it's just so big and gorgeous, a light blue floating dream. I saw some by a river in Minas, Uruguay. While the adult butterflies feed on the juices of rotting fruit, the caterpillars feed on three Uruguayan trees.

Coronilla, Scutia buxifolia, is a common small scrub tree in Uruguay. It is known as the best wood for parrilla barbeque because it makes the best embers that stay hot and don't disintegrate.  People cut this tree down wherever they find it because everybody does parrilla asados all the time. I'm told though, that if you plant it, you will have this butterfly.

Other trees used by this butterfly are Inga uruguensis and Lapachillo, Lonchocarpus nitidus.


And Many More...

These are not by any means all of the butterflies that can be seen in Montevideo and surrounding areas. There are those bright yellow ones, those white ones, some swallowtails that probably eat Rue, the tiny blues in the grass that rub their wings, the dirty yellow ones with the little brown spots, the skippers and of course all of the moths. Over the course of the next year, if I identify other butterflies in my garden, and if I'm able to find out what plants they need, I will add them to this article. 

Native Plant Garden Design

Trees
Planting trees is relatively easy if you have the space.  Simply get a list of the trees that support biodiversity, figure out their size and spread, soil and water needs, and plant them in the right place. Water it weekly for the first year or two, until the roots get well established. Voila'!

The great trees of Montevideo:

Guayabo del Pais, Acca selowiana, native small fruit tree, 7 meters
Taruman melifero
Ceibo
Coronilla
Inga'
Lapachillo
Tala
Espinillo
Laurel, Ocotea acutifolia, 15 meters
Lemon
Orange
Mandarin
Tembetari', Fagara rhoifolia, spiny tree, 8 meters


Shrubs
Lantana camara, 1.5 meters high, good nectar for many butterflies
Duranta, Duranta repens, up to 4 meters, good nectar plant, purple flowers, yellow fruit
Cedron de Monte, Aloysia gratissima, 3 m, small white flowers, nectar, sun, moist, sand
Pitanga
Plumerillo
Sen or Rama Negra Senna corymbosa, evergreen shrub, 2.5 meters high
Chilca de Olor, Eupatorium inulifolium, 1-3 meters, moist areas, nectar for many butterflies
Marcela, Achyrocline saturoides, 1 meter high, flowers in March in Souhern Hemisphere
Eugenia and other Myrtaceae



Vines
Passiflora
Aristolochia triangularis "Isipo' Milhombres"




Perennial herbs
Ruellia brevifolia, "Tropical wild petunia" red flower, 0.5 - 1 meter high, part shade, dry
Ruellia tuberosa, 0.5 meters, blue flower, moist shade
Dicliptera tweediana, "Canario Rojo", 0.5 - 1 meter high, or small shrub, red tubular flowers
Ruellia blechum "Wild Hops" or "Green Shrimp Plant". Sun to part shade. 0.6 meters high
Ruellia coerulea, R. simplex, R. tweediana could all be the same local herb, 1 m high
Ruta graveolens, European herb, 0.5 meters, dry, sun
Verbena bonariensis, 1 - 1.5 meters high, purple flowers

Annual herbs
Milkweeds, Asclepias sp.
Cafecillo Senna occidentalis
Malva parvifolia, Native to Africa, Europe and Asia. 0.5 meters, sun,

Grasses
None that I've found so far

Groundcovers
Clovers

Design of the Garden

After I get more familiar with the shapes and sizes of these plants listed above, and as I learn which ones are available in plant nurseries, I'm going to design a low butterfly hedge, located all along the window of my living room.  I'll add the design to this document when I finish it.

In the meantime, I'm going to plant as many of these plants around the garden as I can, as I find them in nurseries and at my teacher's house (she shares!).  

As my teacher always says, "A plantar!". 


Native Plant Nurseries in Uruguay

Pinar Sur, Canelones
Although this nursery claims to only supply food plants, I found some nice butterfly host and nectar plants such as Mburucuya, Malva, Plumerillo, Lapachillo, and Cedron del Monte. I was not able to find the elusive Asclepias. 

Vivero El Ceibo
Carrasco, Montevideo
This lovely suburban garden center has many exotic ornamentals but also you can find some native Uruguayan butterfly hosts and nectar plants in amongst the exotics. While I was there I saw Espejitos and Erato butterflies. Available plants form this list were Verbena, Lantana, Duranta, Ruta, Ruellia, Eugenia and Plumerillo. There were several native trees, such as Anacahuita, Lapachillo, Ceibo, and Palo Borracho.

Vivero Parati
Toledo Chico, Montevideo
Many native trees, shrubs and herbaceous plants are available at this nursery. They will deliver your order after you choose your plants. The native plants I saw were Espinillo, Tembetari, Pata de Vaca, Pitanga, Ibiriapita (Arbol de Artigas), Timbo, Cina Cina, Tala, Anacahuita, Taruman, Tacoma, Ceibo, Araza, Plumerillo Rosado, Duranta, Lantana, Canelon, Verbean bonariensis, Eupatorium macrocepahlum, Rama Negra, Buddleia Amarilla, and several Ruellias. See the catalog on their website for pictures of the available native plants.

Vivero Lavender
Carrasco, Montevideo
Vivero Lavender and Tea Room is a lovely oasis just off the main street of Carrasco, Avenida Arocena, at the corner of Divina Comedia and Mones Roses. The staff is very helpful and the selection of plants is beautiful. The native plants I was able to find from my list were Verbena, Lantana, Duranta, Ruta, Ruellia and Plumerillo. The tree selection included Anacahuita, Ceibo and Palo Borracho.

Thursday, May 25, 2017

Where to Buy Native Plants: Send me Your Tips!


Image from pixabay.com



I'm creating a clearinghouse document here of places where my readers and I have successfully purchased native plants for our native garden projects. Please send me the names, locations and a short description of the places you have bought native plants. Use the comment section. I'll add them to the text.  I'll sort by state, and by country. Thank you! Here's my list for now:

When I lived in Arlington, Virginia, I got most of my native plants from one nursery, two non-profit nurseries, and a biannual plant sale.  I also got some of my plants from neighbors who gave me cuttings, seeds or root clumps from splittings.

If you don't live in the National Capitol Area, use the resource links at the right to research other reliable providers of native plants as well as information on which plants your local butterflies and other pollinators need for food. Yes, right over there =>

USA By State

Maryland

Environmental Concern Inc.St. Michaels, MD
Environmental Concern holds native plant sales in May and in September. You can purchase from there nursery throughout the year, but check their website and make an appointment.

Virginia

The Virginia Native Plant Society keeps an updated list of native plant nurseries across Virginia.

Nature by Design
Alexandria, VA
Check their website for hours and current plant list. They will also help design and install native plant gardens.

Earth Sangha Wild Plant Nursery
Springfield, VA
Check their website to make an appointment to buy plants, view the plant list or to volunteer in the nursery.
Every year, the nursery hosts three "Open House & Plant Sale" events, one in the spring, summer, and fall.


Northern Alexandria Native Plant Sale
Formerly Parkfairfax Native Plant Sale
Alexandria, VA
This native plant sale is held twice a year, on the last Saturday in April and on the last Saturday in September. Check their Facebook page for dates, location and vendors.






Considerations when purchasing native plants

Sources of the plants: Ask the nurseries where they get their plants, or the seeds and cuttings they use to grow the plants they sell. Make sure they have an ethical source that is able to provide reliable native plant species. Also try to be sure that the native plants are not being sourced from wild foraging.

Heirloom vs Cultivar: A plant may sound like the native plant you are shopping for, but if it is a cultivar, having been bred for generations to achieve a particular color or bloom size, the plant may have lost its original qualities making it useful to the butterflies and other pollinators that depend on it. Try to find original or heirloom versions of the native plants.

Local or regional: Make sure your native plant choices are native to your area. While you may have learned that Monarch butterflies need milkweed, the different species of milkweed across the country, and even across coninents, have different chemical makeups, and might not be the proper plant to nourish the Monarchs passing through your area.

Wednesday, May 24, 2017

Native Plants and Butterflies in the News

Bumblebee on Coneflower. Photo from pixabay.com

By Charlotte Adelman on Chabad.org
This article was published on May 10, 2017 on the Chabad.org website. The author is a native plant gardening expert. She stopped by the Chabad in Wilmette, IL to talk with the rabbi about protecting the environment as an act of tikkun, the Torah law that requiers Jews to repair the world, both physically and spiritually. The Chabad community embraced the idea of designing a butterfly garden on the new grounds of the Wilmette Chabad Center for Jewish Life and Learning. The organization decided to replace some of the lawn with native grasses, sedges and shrubs to provide critical habitat for butterflies and other pollinators. Read more about their project at the link above.
-Cory

How to Choose the Best Plants for Pollinator Gardens
By Janeen Wright on greenhousegrower.com
This article was published on May 9, 2017 on the Greenhouse Grower website.  The article looks at native plant gardening from the supply side. In the USA, people are becoming aware of the benefits of gardening for pollinators, and the demand for native plant material is growing. Native plants aren't easy to find, though.  In the article, one nursery owner in Illinois says,


“The demand for milkweed species and other native plants has skyrocketed, and many consumers are having a hard time finding a full selection of native species in garden centers,” says Grace Koehler, Sales Manager and Green Roof Professional at Pizzo Native Plant Nursery in Leland, IL. “Market demand is rising; the supply is stagnant.”


The author admits that growers still lack understanding of the native plant needs of bees and butterflies. While the consumers want to grow pollinator gardens, the nurseries aren't sure yet which plants are the right plants. The article also discusses the difference between natives and cultivars, but the conclusion of the article is that in order to meet the demand for native plants, the nursery industry is going to have to get educated and get then get stocked. 

-Cory

Friday, May 18, 2012

Luna Moths Need Black Walnut, Hickory Trees and Dark Skies


Luna Moth (from Wikipedia)
Two decades ago when I moved to our house in Arlington, Virginia, a Luna Moth took up residence for a couple of days among the moon flowers and morning glories climbing up the bean trellis. Since I was new to Virginia as well as the neighborhood, I assumed Luna Moths were a common occurrence that I would be able to enjoy in my new home. That turned out not to be true, and I’ve only seen two, both more than a decade ago.
 
The Luna Moth, Actias luna, is a lime-green swallowtail with a wingspan of four and a half inches, making it one of the largest North American moths.  Its preferred larval host trees in our area are the walnuts and hickories, but it will also use sweet gum and persimmon trees.  Up north, they go for birch, alder and sumac.  The trees are not damaged by the caterpillars.  After eating their fill of leaves and transforming through five instars (life cycle phases or molts), the caterpillars drop to the ground at the base of the tree, wrap themselves in silk and leaf litter, and pupate.
 
Luna Moths face many challenges to survival in the urban sprawl.  They require dark skies to reproduce.  They fly up to the tops of the host trees well after midnight to mate and lay eggs.  There is evidence that the bright lights from streetlights and buildings interfere with the moth’s ability to reproduce. They are also becoming endangered by the measures to control Gypsy Moths.  

While I haven’t read anything about the effect of leaf collection on Lepidoptera, it seems logical to me that our obsession with raking, mowing and blowing our yards clean has had the effect of sweeping away the pupated moths and butterflies as they undergo the miracle of metamorphosis at our feet.   [for more information on supporting wildlife by leaving in place the  leaves, seedheads and leaf stalks that insects, birds and small mammals depend on, see this post by Pat Sutton "A Love of Untidy Gardens and Why!" on the website Native Plants and Wildlife Gardens]

Finally, as our neighborhood’s original native tree cover is aging and disappearing, we are not replacing them with the species that the local fauna require for food, shelter and reproduction. Maybe we can help keep these beauties around by planting native hosts, leaving some leaf litter each fall, especially at the base of walnuts, hickories and sweet gums, and turning off unnecessary lights at night.
 
For more information on native landscaping for wildlife, have a look at the links on the right =>

Update May 27, 2012: We went for a walk this morning at Huntley Meadows Park in Alexandria, Virginia. On the path of the forested area near the edge of the wetlands, I saw a Luna Moth. It was the first one I have seen in almost 20 years.

Wednesday, May 16, 2012

Flying Squirrels Need Tall Trees


Photo by Steve Young
Recently I was browsing the website of the Arlington Virginia Long Branch Nature Center when I spotted a link to this great  video about the Southern Flying Squirrel. Unable to resist watching the video, I learned that there are probably more Southern Flying Squirrels here in Arlington than regular grey squirrels. We just don't see them because they’re nocturnal. They live in pretty much the same backyard habitats as the grey squirrel. They need a hiding place, water and food. In the video, a staff member of the Long Branch Nature Center is demonstrating the behavior of the flying squirrel by showing how it will fly to a tree that has peanut butter smeared on it. In another Long Branch Nature Center video, you can see a flying squirrel up close. This is the resident flying squirrel that lives inside the Long Branch Nature Center. This squirrel was rescued and brought to the nature center in 2007.  He refuses to live in the wild. As a result, he is a wonderful learning resource for Arlington residents.
The Southern Flying Squirrel is the mascot of the Long Branch Nature Center, located in Arlington, Virginia. It’s on their brochure, and they lead night walks to spot the animals.   To learn more, I interviewed former Director of the Center (currently Director of Natural Resources for Arlington County), Alonso Abugattas, our resident expert on the Southern Flying Squirrel. 
The flying squirrels are smaller than grey squirrels. They have larger eyes to see better at night. And they’re more predatory. In addition to nuts, fruits and berries, they’ll eat animals, insects, eggs and carrion. Their favorite nuts are hickory nuts but they also like filberts and oak acorns. They don’t like walnuts so much because they’re hard to carry. They love suet and seeds from bird feeders.
Flying squirrels don’t actually fly. They glide from one tree to another.  They spread out their skin flaps, called a patagium, and catch the air like a parachute. They control the glide by banking.  They don’t use their tails to steer. Sometimes they wipe out on the ground if they miscalculate. For every two feet up, they can glide one foot out. The longest glide observed was 100 yards, off a tree and down a hillside.



Photo from "The Snag" Newsletter of Arlington VA Parks and Rec
Flying squirrels can build leaf nests (dreys) but they don’t like to live in them.  They prefer cavities in live trees, dead trees or snags. Keep your dead trees standing if possible and safe, or cut them down to a safer height, retaining the snag. They will also nest in bluebird boxes. They prefer to be at least 10 feet up.
During non-breeding season they hide together in cavities to keep warm. During breeding season they are incredibly secretive. They spread out in the woods. They prefer a habitat with big trees, larger, older trees that are spread out a bit, 20 feet apart or more.
In suburban areas, if there aren’t enough trees, they will take up residence in other areas such as bird boxes and attics.  This can be a problem because they run around at night and they chew.  If this happens, they’re easy to trap in “Have a Heart” traps with peanut butter as bait. 
To see flying squirrels in your yard, put peanut butter on a tree branch after the grey squirrels have gone to bed. I haven’t tried it yet but I will soon!
Plant and preserve native canopy trees so flying squirrels and other wildlife have a place to live. 

For more information on the Southern Flying Squirrel, check out the website of the Chesapeake Bay Program. There's also a fact sheet by the Audubon Society of Northern Virginia, that gives advice on how to provide food and shelter for the Souther Flying Squirrel by planting native berry shrubs and hickory trees.  Also plant butterfly host plants because they love to feast on caterpillars.
-Cory