Winterizing Broad Leaved Evergreens

rhododendron-with-leaf-winter-burn

Do some of the leaves on your broad leaved evergreens turn brown and fall off during the winter? Or have what’s called ‘winter burn’; when the edges of the leaves turn brown over the winter but don’t fall off ? If so, there is something you can do to prevent this leaf damage and loss.

All evergreens lose moisture through their leaves in winter, especially broad-leaf evergreens such as Rhododendron, Azalea, Andromeda, Laurel and Boxwood. If planted in an unprotected area open to cold, drying winds, evergreens are susceptible to desiccation; a condition in which the foliage dries out, turns brown and may drop. To decrease water loss, spray and coat both sides of the leaves with an anti-desiccant such as Wilt-Pruf or Wilt Stop during a day in mid to late November with temperatures above 40 degrees . Make sure it isn’t going to rain or snow during the next couple of days or the spray application may wash off. If you didn’t get to this task in November, then in January if there is a day and evening that stays above 40 degrees, you can treat your shrubs then.

You can purchase Wilt-Pruf or Wilt-Stop at most local garden centers or hardware stores that have a gardening department. (Note: Do not spray arborvitae, junipers, blue spruce or cypress). And, for extreme weather conditions, you can build a protective shelter for your evergreen using stakes and burlap.

You can also use an anti-desiccant spray to prevent leaf dehydration over the winter on cut broad leaved evergreen leaf branches you use for making winter wreaths, swags, and decorations in window boxes. Spray the leaves before you wire the branches together. The spray takes less than an hour to dry.

Custom made Evergreen Swags and Arrangements

Evergreen swag

Evergreen swag

Window box arrangement

Window box arrangement

Seasons Greetings!

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Would you like a beautiful hand made SWAG for your front door,
or ARRANGEMENT for window boxes or outside containers?

I’d love to create them especially for you!

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SunandShadeGardening.com

Call: 617-776-8382

Happy Holidays!

Winter evergreen arrangement

Winter evergreen arrangement

Mosquito Larvae in Standing Water

Mosquito dunk and mosquitos in standing water

I published this blog post last year, but it’s always going to be relevant as long as there are mosquitoes around laying their eggs.

Mosquitoes lay there eggs on the surface of standing water and stick around while the eggs develop. The mosquito larvae will hatch in about a week. If you’ve an area of soil that doesn’t drain well and retains water, mosquitoes will lay their eggs there also. Other mosquito breeding grounds include long standing water-filled rain barrels, bird baths, containers, tubs, flower pot trays, vases, old tires, clogged roof gutters, sewer drains, streams, ponds, and vernal pools.

To decrease the mosquito population, and lessen the chance of West Nile Virus spreading, be sure not to let still water stand for more than a couple of days in any of the above mentioned areas. Mosquito Dunks are effective in killing mosquito larvae for 30 days when added to standing water. The dunks which are formed in the shape of small donuts consist of bacteria known as Bti israeliensis. Mosquito Dunks only kill mosquito and black fly larvae, which die within 24 hours of ingestion. Mosquito dunks will not harm people, pets, wildlife or fish.

You can buy Mosquito Dunks at local garden centers. Bti israeliensis also comes in a granule (grits) form, but the donuts are more readily available. Dunks can be broken up easily into smaller pieces or crushed to a granule consistency. One dunk is effective in up to 100 square feet of water.

P.S. – Mosquitoes won’t lay eggs in moving water. So, water fountains are good resources to prevent this. Also, a bird bath ‘water wiggler water agitator’ (can be purchased via Amazon.com) keep the mosquitoes away.

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Creating an Ecological Garden

native violas and water source      

Native Violas and water source

If you would like to go Green or Greener in your garden, here are some things you can do to promote an eco-beneficial landscape:

  • Always plant the right plant in the right place. Such as; planting sun loving plants in sun, shade loving in shade, and plants that need wind protection along a fence or wall. If an area’s light exposure changes drastically due to overhead tree or shrub growth, move plants accordingly.
  • Provide a water source (small pond, bird bath, bowls of water) for wildlife and insects. During the times of year when mosquito’s breed, be sure to put a ‘mosquito dunk’ in those sources of water. Mosquito’s lay their eggs in water and ‘dunks’ kill these eggs within 24 hours. You can purchase dunks at garden centers, and also in hardware stores that sell garden supplies.
  • Plant plants that grow naturally (native) in a region for best ecosystem results. Native plants require less maintenance, and keep water clean by filtering contaminated runoff and preventing soil erosion. And, they attract native birds and wildlife.
  • Remove invasive plants in your yard by using organic or mechanical methods. As soon as these plants are removed, replace them with regionally native plants.

Let me know the green techniques you already use in your garden, or what you plan on doing. I’d love to know!

Taking Care of an Inherited Garden

Overgrown garden

If you have recently purchased or inherited a house with an existing garden on the property, and you are not experienced gardeners, here are some  basic things to do for spring cleanup:

  • Once the snow has melted and the soil has thawed, remove any fallen twigs and dead plants from the garden beds. (Buy a pair of garden hand pruners for cutting back plants) Put all of this debris into lawn bags for the DPW to pick up. If there are leaves on the beds, I recommend that you do not remove them. Many small insects have overwintered, laid their eggs in the leaves, and have begun the leaf breakdown process. The leaves will continue to break down into a natural enriching leaf mulch similar to what you see the woods.
  • You may want to have your soil tested to learn the nutrients it needs.  Contact the UMass Soil and Plant Tissue Testing Lab for a routine soil analysis which costs only $15.00.  http://soiltest.umass.edu/  Once you receive the results, ask a lab technician at UMass, or an expert at a local garden center to help you understand what your soil needs.
  • Whether you get the soil tested, or not, I recommend that you apply a two inch layer of organic compost across the garden beds and work it gently into the leaves and the soil. Use either shrimp/seaweed or lobster compost, or composted horse or cow manure. Compost contains nutrients and microbiotic life which are beneficial to soil health. If there are no leaves on the beds, apply a three inch layer of organic mulch on the beds to keep the weeds back and the soil moist.
  • All plants need at least 1 inch of water per week. A heavy rain which deposits about 3/4 of an inch of water on the ground, should keep the garden irrigated for about four days. If there is no underground irrigation system, for conservation purposes use drip hoses at night or very early morning when evaporation loss is minimal.  Use sprinklers only during the day, because overhead watering at night leaves plants susceptible to disease.
  • Pay attention to the plants that come up in the spring. Once the flowers have faded and died, cut them off.  This is known as dead heading. Watch for any signs of leaf damage; such as leaf discoloration or small holes in the leaves. There may be a leaf fungal disease or harmful leaf eating insects present.
  • Get gardening advice from neighbors with healthy gardens, from knowledgeable garden center employees, or from a professional gardener.To learn more about gardening on your own, join a local garden club, take a beginner gardening class, read garden magazines and books, and search the internet for helpful gardening information.

 

Fall Blooming Native Perennials

Helenium sunflower native

Helenium – ‘Sneezeweed’

Fall blooming native

Lobelia – ‘Cardinal Flower’

 

Fall is a good time to plant perennials.
The weather gets cooler,and plants still have time for their roots
to get established in the soil before winter sets in. There are many
fall flowering native perennials you can plant.

I’ve listed some of them below:

August into September (possibly October) blooming:

  • Helenium – (Sneezeweed)
  • Lobelia – (Cardinal Flower)
  • Bugbane – (Cimicifuga)
  • Blanket Flower (Gaillardia)
  • Joe Pye Weed
  • Black Eyed Susan
  • Boltonia Aster
  • New England Aster
  • New York Aster
  • Blue Wood Aster
  • White Wood Aster
  • Purple-stemmed Aster
  • Agastache – (Hummingbird Mint)
  • Turtlehead (Chelome)
  • New York Ironweed
  • White Snakeroot – (Eupatorium)
  • Gentian; ‘True Blue’
  • Goldenrod (Solidago)
  • Hardy Ageratum

Some sources to purchase fall blooming native perennials in eastern Massachusetts include; New England Wildflower Society in Framingham, Project Native in Housatonic, Mahoney’s Garden Center in Winchester, Pemberton Gardens in Cambridge, and Bonney’s Garden Center in Cambridge, Ricky’s Flower Market in Somerville, and Russell’s Garden Center in Wayland.

Fall Garden Tasks

IMG_0071

Fall garden area needs clean up, compost and mulch

Here are some garden tasks to take care of in the fall:

• Dig compost into your garden beds to enrich the soil
• Fertilize acidic loving shrubs such as Azalea, Rhododendron, and Andromeda with an organic fertilizer such as Hollytone.
• Mulch trees, shrubs and perennials with shredded leaves or bark mulch to protect the plants over the winter.
• After you plant spring blooming bulbs, dig a little bulb booster fertilizer into the top of the soil around the bulb planting area. Also, you might want to plant some bulbs that will naturalize (continue to increase overtime without planting more of that variety)
• When you do plant trees, shrubs and perennials in the fall, be sure to plant them at least six weeks before the ground begins to freeze. Cooler daytime temperatures and warm soil promote root growth. Water them well at planting, and continue to water them until the freeze.
• Fall is a good time to take a walk around your garden and do an assessment. Take notes about things you’d like to change next spring; such as adding a new garden bed, moving a shrub to a better location, or the plants you’d like to thin out and divide but don’t have time to do now. Add a wish list of new plants you’d like to put in.
• If you expect a freeze, shut off and drain your garden hoses and irrigation systems.