Tuesday, October 30, 2018

Turn Yard Wastes into Black Gold


Compost tumbler
Leaf raking is a major chore in October and November. You may rake by hand or attach a mulching blade to your lawn. Most folks opt to using leaf blowers and push leaves to curbside. Protect your ears with plugs or headphones.

Compost is often called "black gold". It is a smart move to gather up leaf litter and twigs. Much of the debris from the vegetable and flower garden can be thrown into the compost pile. Leaves, grass clippings and green table scraps can be processed into rich humus. Never add diseased plant materials or meat scraps.

Compost heaps appear in many shapes and sizes. The simplest and most common is a back corner of the yard out of sight, a collection of several years of garden refuse. Homemade reinforced wire bins are common, a large receptacle of garden waste. Home and garden centers sell composters of various sizes including tumblers that will speed decomposition. You can also purchase special packets of microorganisms that hasten the decaying process.

At Ijams Nature Center in Knoxville, Tennessee are displays of several methods of composting garden refuse. It is not true that rodents such as rats, voles and moles may make their homes in compost piles unless proper sanitation measures are followed.

Gardeners can turn garden debris into black compost in as little as 6 weeks with adequate moisture, aeration and nutrition; or simply pile up your garden waste and wait 2-3 years for compost.

Tuesday, October 16, 2018

Inkberry Holly A Worthy Substitute For Boxwood


Ilex glabra 'Densa'
Inkberry holly (Ilex glabra), also called gallberry, is a slow-growing broadleaf evergreen shrub (USDA hardiness zones 4-9). Inkberry grows to 5-8 feet tall and, if not pruned, may spread by root suckers to form colonies. 

Inkberry is native  from eastern Canada to Florida, west to Louisiana.  The dark green glossy leaves (to 1.5” long) have smooth margins and are spineless. Foliage stays attractive in winter unless temperatures dip below 0 °F. Greenish white flowers appear in spring, but are mostly inconspicuous.

Inkberry grows in average, medium to wet, acidic soils and in full sun to partial shade. It is one of few holly species that tolerates wet soils. Inkberries are dioecious (separate male and female plants). Female plants need a male pollinator to produce black,  3/8 inch diameter, berry-like (drupe) fruits that mature in early fall and persist throughout late winter into early spring unless consumed by birds and other wildlife.

Inkberry holly is a popular hedging shrub that tends to grow faster than a boxwood. Prune in early spring before new growth begins. Plants generally need minimal pruning unless used as a hedge. Remove root suckers as they form. Many landscape cultivars do not root sucker as badly as species. 
Leading cultivars are 'Densa', 'Shamrock', and 'Nordic'
No serious insect or disease problems trouble inkberry hollies. Leaf spotting occurs in wet summers. Spider mites may appear, especially during dry spells. In high pH (alkaline) soils, foliar chlorosis (yellowing) may happen.
Mass or group several inkberry hollies as a shrub border, a low foundation planting. Species inkberries will naturalize in moist woodland gardens or near streams or ponds.

Honey derived from inkberry flowers is a highly-rated. It is locally marketed in certain parts of the southeastern U.S. Dried and roasted inkberry leaves were first used by Native Americans to brew "Appalachian tea" a black tea-like drink.

Sunday, October 14, 2018

Planting Peonies

Peonies are popular perennials because of their magnificent flowers in spring and early summer and their leaves that remain attractive throughout the season. These instructions apply to herbaceous peonies (USDA Zones 3–8), which die completely to the ground in winter. Tree peonies, shrublike plants with woody stems that remain visible all year (Zones 4–9), have slightly different requirements.
It’s best to plant herbaceous peonies in fall, when they are dormant. Spring-planted peonies may fail to flower for several years, and may even die if they put out new shoots before their roots become established. Mail-order and local nurseries offer bare-root divisions in the fall. A bare-root peony division is a section of rooted crown with several dark red growth buds called eyes. Each bud gives rise to a stem in the spring. The more eyes a division has, the fuller it will appear, so look for a division with at least 3 to 5 eyes.
To plant a bare-root herbaceous peony in the fall:
1. Choose a site with well-drained soil away from the competing roots of trees and shrubs. Give each plant an area about three feet in diameter. Avoid windy areas or provide a windbreak, since peony stems are vulnerable to breakage when heavy with buds and flowers. In most regions a site in full sun is best. If your spring tends to be hot and dry, choose a site with afternoon shade.
2. Prepare the soil. Peonies bloom most prolifically if left to grow undisturbed in the same location for many years, so planting in well-prepared and enriched soil is important. Dig a planting hole about 2 feet across and 18 inches deep. Mix several shovels of compost or well-rotted manure into the bottom of the hole. Fill the hole halfway with topsoil mixed with more compost and a cup of bonemeal. If your soil is acidic, also mix in about a cup of ground limestone. Peonies like a pH of between 6 and 7.
3. Plant the peony. Setting the division too deep prevents flowering; the eyes should be covered by no more than 1.5 to 2 inches of soil. If you garden in a mild-winter climate, position the eyes so they will be only .5 to 1 inch below the soil surface, thus exposing the roots to as much winter cold as possible. Once you’ve positioned the peony in the hole, fill the soil carefully but firmly around the roots. Make sure there are no air spaces that could allow the plant to settle too deeply.
4. Water the plant in with a gentle stream from a hose. Then surround it with a light mulch, such as chopped leaves or evergreen branches, to help reduce competition from weeds and regulate soil temperature and moisture. Remove the mulch in winter so that the plant gets properly chilled. The peony may not bloom its first year, but by the third year it should reach top form.

Monday, October 1, 2018

Fall Spectacular Golden Larch Tree

Golden larch (Pseudolarix amabilis) deserves to be planted more in U.S. landscapes. A native to eastern China, this deciduous conifer is not a true larch (Larix spp.).  Golden larch appears to prosper where summer weather is warm and humid (USDA hardiness zones 4-7).
Pseudolarix amabilis in mid-October

Golden larch should be planted in full sun to light shade. It thrives in organically rich, moist, well-drained soil. A mature tree eventually reaches 50 to 60 feet in height and 30 to 40 feet in spread. A new tree tends to start out slowly, and grows at a moderate pace after 2 years. Tree form is weakly pyramidal with layered horizontal branches.

Needles range from 1 ½ to 2 ½ inches in length and are slightly curved. Spring foliage starts out light green, turns medium green in summer, and finishes golden yellow in early fall before dropping in mid-October, the time when earns its name. 

Cones are 2 to 3 inches in length, 1 ½ to 2 ½ inches wide, green during the summer, and golden brown in fall. Young trees exhibit a reddish brown bark which age to grayish brown with some ridges and furrows.

Golden larch ages to a large beautiful tree. Utilize it as a specimen tree on large properties such as golf courses, public parks, and college campuses. Disease and pest problems are as rare as finding this tree in U.S. commerce. It is listed by a few specialty on-line nurseries.

Saturday, September 15, 2018

Fall Blooming Toad Lilies

Toad lilies at Chanticleer Garden, Wayne, PA
Toad lilies (Tricyrtis spp.) are native to moist woodlands in India, China and Japan. They are in the lily (Lilaceae) plant family (USDA hardiness zones 4-9). Toad lilies are attractive fall-blooming shade perennials. In mid- to late September, as most perennials are finishing flowering, toad lilies are starting out. 

Three species of toad lilies, T. hirta, T. formosana, and T. macropoda are currently very popular, along with several hybrid cultivars.  Depending on species, plants grow 1 ½ to 3 feet tall. Funnel shaped orchid-like flowers come in an array of spotted colors and may be star or bell shaped.

Its plant name - “toad lily” - refers to the speckled flower colors. Planted in an ideal site, toadlilies are long-lived and require little attention. Flowers arise in the axils of the leaves and held on arching stems

Toad lilies prefer partial to full shade and in moist humus-rich garden soil. Under ideal conditions plants need little or no fertilizing. Feed plants lightly 1-2 times during the summer with water soluble fertilizers such as Miracle-Gro™ or Jack’s™.  Plants should be protected from the wind particularly in the southern parts of the U.S. Mulching keeps the soil moist and suppresses weeds. 

Divide roots of the toad lilies in early spring, and space new plants 2-3 feet apart.
Toad lilies are mostly untroubled by disease or pest problems. Anthracnose leaf spotting may pop up in wet summers. If so, rake up all fallen leaves and discard in late winter. In shady garden areas deer prefer hostas first, but may later turn to toad lilies. 

Top cultivars:
T. formosana - abundant purple-and-white blooms attached to 36 – 40 inch stalks
T. hirta ‘Miyazaki’ hybrids - superior flowering and vigorous growth.
T. macropoda  cultivars - ‘Sinonome’
Hybrids: ‘Tojen’ - unspotted lavender flowers; 'Lightning Strike' with green /gold-streaked foliage.

Saturday, September 1, 2018

The Best Lacebark Elms For Your Area

'Athena' Lacebark Elm
Lacebark elm (Ulmus parvifolia), also called little leaf elm, is a beautiful medium-sized shade tree. In recent years lacebark elm has become a popular urban street tree in USDA hardiness zones 5-9 . The four leading cultivars of lacebark elm are Allee®, Athena®, and Bosque™, and Dynasty®.
The tree earns its name from the delightful orange or brown color mosaic or puzzle-like pattern over the main trunk (s) and branches. The autumn leaf color is rarely memorable and the small 1-2 inch leaves fall without much fanfare and leaf litter mess. This elm tree blooms in late summer and flowers are mostly inconspicuous.

Get lacebark elm off to a long and prosperous life by irrigating bi-monthly the tree over long dry spells and fertilize the tree in late winter the first two years after planting. An established lacebark elm exhibits exceptional drought tolerance. Disease and insect problems are rare.

In Tennessee and elsewhere, damaging summer storms have caused arborists to evaluate varieties regionally. For example, Tennessee urban foresters report that limb breakage and clean up around Allee elms is greater than on other cultivars. The cultivar Bosque appears to fare much better.

Consult a local certified arborist which lacebark elms grow best for your area.

Wednesday, August 15, 2018

Basics On Herbicide Use

Wild Garlic - spring weed
Dandelion
Herbicides are vegetation killers. They kill weeds and occasionally, if applied incorrectly, damage the good plants. A weed is any plant that you don’t want in the garden.


Avoid spraying on windy days or on hot days over 85 °F as chemical herbicides can drift or volatilize, injuring nearby garden plants. Warm summer temperatures increase the possibility of lawn injury from certain herbicides. It should not rain within 24 hours after application. Don't mow a few days before and 2-3 days following an application. Wait 3-4 mowings before treating a newly seeded lawn with any herbicide.

There may be 3 different kinds of weeds you’re trying to control: grasses, broadleaf types and sedges. Broadleaf weeds include dandelions, spotted spurges, buckthorns, purslanes and thistles. Fall and late winter (before new leaves emerge) are safe times to spray broadleaf herbicides. Most deciduous shrubs and trees are shedding their leaves and are less susceptible to the spray drift.


Spring and early summer herbicide applications will not control perennial and woody vegetation such as brambles or poison ivy. Wait until mid-summer to tackle these tough weeds.

For a contact broadleaf  herbicide to work, outdoor temperatures need to be 60 °F and higher over a 6 hour interval for the spray to be absorbed into the plant. Regardless the time of the year, weeds need to be actively growing for herbicides to work.

Finally, heavy weed invasion in lawns may be evidence of poor mowing practices, low soil fertility, or too much shade. Knotweed and spotted surge may indicate bad soil compaction. Tough weeds are not going to give up easily and multiple applications. may be necessary. 

Always read and understand the package directions before using.