Moonlight Flight in the Garden: Attracting Lovely Luna Moths…

May 20th, 2012 § Comments Off on Moonlight Flight in the Garden: Attracting Lovely Luna Moths… § permalink

 Luna Moth (Actias luna) –  iPad Illustration by Michaela

One of the best parts about teaching is having the opportunity to further my own education. And when I am asked a great question that I can not answer, I get especially excited by the chance to do some research and learn something new! Yesterday morning, I presented a seminar, “Designing with Native Plants to Attract Butterflies and Hummingbirds to the Garden”, at Walker Farm in Dummerston, Vermont. The attendees had a number of great, familiar questions about plants and plant care, pollinators and insects in general. But when I was asked how to attract Luna Moths (Actias luna) to the garden, I admit that I was stumped. I’m a horticulturalist, and while I have taken entomology classes —and continue to study and work with insects almost daily in my gardening career— I’m certainly no expert in the field. So, when I returned to my studio, I consulted Whitney Craneshaw’s comprehensive Garden Insects of North America. I was surprised by what I learned, and thought I’d share it here with all of you…

Moonlight Flight of the Luna Moth –  iPad Illustration by Michaela

Luna Moths (Actias luna) are members of the giant silkworm —or in adult phase, royal moth— family (Saturniidae). Approximately ten days after eggs are lain by an adult, the giant, green Luna Moth caterpillars emerge and begin feeding upon foliage of native trees and shrubs; including Black Walnut (Juglans nigra), American Beech (Fagus grandifolia), Red Maple (Acer rubrum), Willow (Salix ssp), Sweetgum (Liquidambar styraciflua), Sumac (Rhus), Black Cherry (Prunus serotina), White Oak (Quercus alba), Hickory (Carya), American chestnut (Castanea dentata), as well as the leaves of other nut and fruit bearing shrubs, trees and shade trees. In spite of their voracious appetites, Luna Moth caterpillars pose little threat to trees and shrubs, due to their modest numbers. Predators of the large —2.5″— caterpillars are numerous; including wasps and many other insects, as well as birds and rodents. Once the adult Luna Moth emerges from its chrysalis, it only has about one week to live, and during this time, its sole mission is reproduction. Such a large moth —with a wingspan of 4.5-5″— must dodge many predators, and slow flight makes the Luna Moth easy prey for nocturnal creatures like bats and owls. Of course, the adult Luna Moths still has plenty of free time to find a mate, as it doesn’t need to spend the week seeking food. Luna Moths emerge from their cocoons without mouths, and never need to eat! The females attract males by emitting a chemical into the night air (Luna-fume?), and lay their eggs beneath the leaves of trees; preferably those of Black Walnut (Juglans nigra). Usually, there are two cycles per year with moths taking flight in late spring and again in mid-late summer.

So how to attract Luna Moths? Try planting trees and shrubs preferred by the Luna during it’s larval stage —all listed above— and be mindful about protecting natural habitat for wildlife. Once plentiful, the Luna Moth is now considered endangered in some areas of the United States. Avoid use of insecticides and herbicides (even organic methods such as Btk and insecticidal soap can kill Luna Moth caterpillars if sprayed indiscriminately) and unnecessary clearing of understory trees and shrubs in their environment. They may be rare, but keep your eyes open at night: if you head outside at dusk, or just before dawn during the early summer, you may get lucky and spot a moonlight flight of the Luna Moth!

Illustrations and Text ⓒ Michaela Medina/The Gardener’s Eden. All photos, articles and content on this site (with noted exceptions) are the original, copyrighted property of The Gardener’s Eden and may not be reposted, reproduced or used in any way without prior written consent. Contact information is in the left side bar. Thank you!

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Oh, Sweet-Scented Orchard Blossoms! Selecting & Growing Fruit Trees at Walker Farm with Zeke Goodband…

April 29th, 2012 § 2 comments § permalink

Apple Blossoms at Scott Farm in Dummerston, Vermont

The Sweet Scent of Spring: Filling My Hands with Fragrant Apple Blossom Petals as They Fall from the Trees

A Inspirational, Springtime Stroll through the Heirloom Apple Orchard at Scott Farm in Vermont

Many gardeners dream of an orchard filled with homegrown peaches, plums, pears, quince, cherries and apples, fresh for the picking. Fruit trees make wonderful additions to the home landscape, and given proper selection and care, they will provide both beauty and sustenance to the gardener for many years. Spring is the best time of year to plant young fruit trees, and I’m often asked to incorporate them into my garden designs. It’s important for all gardeners —including professionals— to refresh and supplement their horticultural knowledge from year to year, and stay on top of trends. So over the weekend, I joined an eager audience of backyard gardeners at Walker Farm in Dummerston, Vermont, to listen to our local fruit tree expert and orchardist extraordinaire, Zeke Goodband of Scott Farm, share his tips on selecting, growing and pruning fruit trees. I always learn something new from Zeke, and here’s a bit of what he had to offer by way of advice on choosing and caring for young trees in the home orchard…

Orchardist Zeke Goodband demonstrates proper technique for staking young, semi-dwarf fruit trees in the first two years after planting. Pointing out the need for care when strapping trees to stakes, in order avoid damaging the living cambium layer of the tree, Zeke explains that wire, twine and rope may cut through this important layer of bark. Never tie directly to the tree. Zeke recommends using soft, pliant material —such as cloth or rubber— to create a sling around the bark, in order to protect the tree when anchoring and tying it to stakes.

The most important step to take when planting fruit trees —whether an entire backyard orchard or a single specimen tree in the garden— is to properly assess the site. Fruit trees of all kinds require full sun and excellent drainage. In order for trees to flower and develop fruit, they need light from sunrise to sunset throughout the growing season. A little bit of shade in early morning or late afternoon is acceptable —though not optimal— for fruit trees, but a half day of sun or full shade will not provide fruit trees with the conditions they need to grow and produce fruit. In addition, keep in mind that all fruit trees are intolerant of wet soil. So before you get your heart set on a backyard filled with apples and peaches, explore your site with a shovel. Is it poorly drained? If so, choose another site. When the roots of fruit trees sit in wet soil, the tree will slowly decline and eventually die. Equally important, be sure to provide your fruit trees with plenty of room to grow. Even though many modern fruit trees are referred to as semi-dwarf, they still need to be positioned at least 10′ from buildings and other objects, and 15-20′ from other trees. This is important. In order to grow and flourish —and avoid diseases— trees need ample sunlight and airflow.

Another site issue worth considering when planting fruit trees is the presence of wildlife. Deer can cause a tremendous amount of damage to unprotected fruit trees —both to fruit and branches in all seasons— so if deer are common guests to your property, building a fence —at least 8′ tall— is advisable to protect your home orchard. Apple trees are particularly vulnerable to deer browse. For a single tree or small grouping, a more economical, shorter fence may be used to surround and protect the trees.

Zeke discusses some of the differences between the cherry tree varieties available at Walker Farm, and talks about how to select, and care for young trees after planting

Once a site has been carefully chosen, fruit trees may be ordered bare-root —from an online source or mail-order catalog— or they may be purchased in pots at local orchards, nurseries and garden centers, where they may be hand-selected. Walker Farm sells many kinds of beautiful, hardy fruit trees —apples, cherries, peaches, plums and pears, to name a few— and most are three years old. Peaches begin to provide fruit at a very young age, and although they are short-lived (Zeke suggests re-planting peaches every 10 years or so), they are quick to provide a sweet reward; making them a great choice for that first tree.

Once your fruit trees arrive to their new home, how well they are cared for will determine your success and future yield. Bare root trees will need to be planted soon after they arrive. If you must wait, be sure to keep the trees in a cool, dark place (such as the box in which they arrived). Soak the roots briefly —while digging the holes— and settle them in with a long, slow drink of water after planting (a 5 gallon bucket of water with small hole for steady drip works well). When planting fruit trees —bare root or potted— Zeke discourages improving the subsoil with compost or manure. The goal is to get the trees to settle in; spreading their roots beyond the planting hole. If the soil is over-enriched, the roots of the tree will likely remain confined to the planting hole, instead of spreading out and properly anchoring the tree. When planting a potted tree, dig the hole slightly bigger than the container and back-fill with the same soil. When settling the tree into the hole, be sure to leave the graft-union —looks like a knobby elbow— exposed 2-4″ above the soil, and then back-fill completely —avoiding air pockets— tamping the soil very lightly with your foot when complete. There’s no need to fertilize or add compost as top dressing until the tree leafs out. Once it does, fertilizer (10-10-10) or compost may be sprinkled around the root area and lightly worked in. Young trees do like nitrogen for the first 3-4 years (and peaches grow and fruit best when given nitrogen every year, throughout their lifetime) but never feed your trees after the 4th of July (and always avoid using tree spikes. Zeke really dislikes these —as do I— because in seasons with dry springs and wet falls, they neglect feeding when needed and then provide it at the worst possible time: when trees need to go dormant). In order to discourage pests and eliminate root competition, it’s very, very important to keep the root area of fruit trees clear of weeds and grass. So, a layer of mulch (2-3 inches at the base), plus regular weed patrol, is a good idea.

Voles and string trimmers —both of which damage the tender cambium layer of bark— are the enemy of young fruit trees. Protect your trees by creating 18″ high, circular wire cages from hardware cloth. Avoid use of plastic tree-wraps, as they harbor harmful pests, including borers. Hardware cloth (made from 1/4″ metal mesh), settled into the ground surrounding the tree, is what Zeke recommends to protect young trees from girdling by hungry rodents and/or nicks from unwieldy lawn crews. You may recall my mention of wire tubes for protecting ornamental trees in winter. The construction of hardware-mesh protection for fruit trees is quite similar (click here for previous post).

Young, semi-dwarf trees should also be supported with stakes for the first couple of years (fully dwarf trees should be supported throughout their lifetimes). Be sure to use a non-binding and non-chafing sling when strapping the tree to the stakes. Never use wire or twine —which may cut through the tender, outer bark— and avoid tying twine directly around the tree. Rubber or canvas slings, secured to the stakes with twine, work well to support young trees and prevent them from toppling or rocking in the wind.

Zeke demonstrates fruit thinning on a peach tree  —to one peach every 6″ or so— and explains the importance of this technique. Failure to thin heavy crops of fruit may result in broken branches or limbs and poor fruit production the following season

When selecting young trees, buy early in the season from a reputable orchard, nursery or garden center, and always have a careful look at the entire tree, including the root zone (lift gently at the base and slide the rootball from the pot to insure a healthy, non-pot-bound tree). Also, have a look at the leaves, bark and the basic structure of the tree. Does it look healthy; free of wilted or skeletonized leaves? Avoid bringing trouble home to your garden, and once planted, keep a regular look-out for tent caterpillars and other pests by checking on your trees, and supplying water if necessary, every few days.

Zeke demonstrates how vertically-inclined branches on this pear tree are trained to a more horizontal shape through tying techniques

After fielding some pest-management questions, Zeke went on to demonstrate formative pruning and tying techniques for training young fruit trees for best production. Pollination of fruit trees by honeybees and other insects is very important, and although many fruit trees are cross-pollinated by wide variety of local, flowering trees, Zeke points out that planting fruit trees in multiple usually gives the best results in terms of fruit production. Getting young, upright trees to flower and produce  —particularly upright pear, plum and apple trees— can be a challenge. To encourage fruit production —which takes place on horizontal branches— Zeke demonstrated how vertical limbs are gently trained in a more horizontal or angled position and tied down. This technique can be used with the more upright varieties of pears, apples, plums, peaches and other fruit trees, to encourage a more horizontally-tiered shape. If you have ever trained a climbing rose to flower (using horizontal fan shape) you will be familiar with this concept. Some trees have a naturally open, horizontally-branching framework and require little tying or pruning to produce fruit. For example, the Japanese ‘Shiro’ plum (Prunus ‘Shiro’) has a lovely, open shape; making it aesthetically pleasing as an ornamental and productive as an edible. In addition to tying, Zeke explained the process of thinning apple blossoms from the average of five per cluster to one or two blossoms per cluster. What about pruning? Zeke advises that over-pruning young fruit trees is a mistake. Other than correcting tight crotch angles and removing competing leaders —or other obvious problems like rubbing or broken branches— avoid pruning fruit trees for the first few years. Later on in the life of your fruit tree, prune trees during winter dormancy to keep the shape low, open and horizontally branching, as well as to remove diseased or seasonally damaged wood.

Zeke demonstrates how he would prune this young Honey Crisp apple tree; selecting a strong, central leader and removing a competing, vertical branch

If a gardener is hoping to harvest fruit in the near future, adding a few early-to-bear peach and pear trees would be a great place to start. Walker Farm had several varieties of each on hand; including golden ‘Bartlett’ pears and north-hardy, sweet and juicy ‘Redhaven’ peaches. Zeke  discussed some of the best varieties of cherries for our area, noting that trees producing tart fruits —such as ‘Danube’ and ‘Montmorency’— do better than the sweet cherry varieties this far north. But he quickly dispelled the myth that hardy fruit trees grown locally will do better than those grown outside of this region. Because fruit tree varieties are genetically identical, and grafted upon rootstock, a tree raised in Washington (hardy to your zone) has as good a chance of survival as one grafted and raised up the road. Still, I plan to shop for fruit trees locally to take advantage of the expert advice given by lifelong farmers like Zeke Goodband and Jack Manix. An experienced, successful farmer’s words-of-wisdom —and quick wit— are worth their weight in gold.

Thank you to Zeke Goodband for an incredible seminar, and to Walker Farm for sponsoring a spring’s worth of Saturday morning gardening seminars, free to the public! (Click here for information on upcoming seminars, and register to save your seat)

To read more about Zeke Goodband & his work at Scott Farm Orchard, click here and explore my previous posts (including recipe posts).

 Autumn Apple Harvest at Scott Farm in Vermont

Heirloom Apple Treasures

And of Course, the Best Part of Fruit Trees is … Experimenting in the Kitchen with Orchard-Fresh, Heirloom Fruit! Click here for French Apple Cake Recipe 

Resources for the Home Orchard …

The Best Apples to Buy And Grow (BBG)The Best Apples to Buy and Grow (Brooklyn Botanic Garden All-Region Guide Beth Hanson

Growing Fruit RHS Harry BakerGrowing Fruit (RHS Encyclopedia of Practical Gardening Harry Baker

the Backyard Orchardist stella ottoThe Backyard Orchardist: A Complete Guide to Growing Fruit Trees in the Home Garden Stella Otto

The Apple Grower, Michael PhillipsThe Apple Grower: Guide for the Organic Orchardist Michael Phillips

Photographs and Text ⓒ Michaela Medina/The Gardener’s Eden. All photos, articles and content on this site (with noted exceptions) are the original, copyrighted property of The Gardener’s Eden and may not be reposted, reproduced or used in any way without prior written consent. Contact information is in the left side bar. Thank you!

Do you enjoy The Gardener’s Eden? You can help support this site by shopping through affiliate links. A small percentage of each sale will be paid to this site, helping to cover web hosting and maintenance costs. Thank you so much for your support!

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Pruning Ornamental Trees & Shrubs: Free Saturday Gardening Seminar Sponsored by Walker Farm in Vermont

April 12th, 2011 § Comments Off on Pruning Ornamental Trees & Shrubs: Free Saturday Gardening Seminar Sponsored by Walker Farm in Vermont § permalink

Lilacs are best pruned immediately after their flowers fade (or, if you like them as fresh cut blossoms, prune and decorate your house with bouquets at the same time). Learn more about how to prune lilacs in this post, and if your looking to improve your pruning skills…

I’m presenting a free gardening seminar, “Pruning Ornamental Trees & Shrubs”, sponsored by Walker Farm, this Saturday, April 16th at 10 am. The event will take place at beautiful Walker Farm, Rt. 5, Dummerston, Vermont.

There is no charge for these weekend seminars. Classes are limited to 30, and advance reservations are requested. Contact Walker Farm to save your seat by calling 802-254-2051 or emailing: walkerfarmvt (at) gmail (dot) com.

Walker Farm is offering a great selection of free weekend gardening seminars this spring. Check out the listing on their website, there’s something for everyone!

Walker Farm is a wonderful destination for gardeners (they offer farm grown organic vegetable starts, unusual annuals, and rare perennials as well as a beautifully curated collection of conifers, trees, shrubs and vines). If you are gardening in Southern Vermont, New Hampshire or Western Massachusetts, Walker Farm is an easy car ride. I hope to see you there!

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