Monthly Archives: April 2013

What not to plant……….

Now that the US horticulture industry is a nationwide enterprise diseases are able to spread from one coast to the other within a few seasons. In the good ol’ days, when plants were grown locally, this problem was less severe and diseases could be contained or stopped before they became a national epidemic.

This has created a “DO NOT PLANT” list in my mind every time I see one of these plants at a nursery. I have also learned to read labels to see if the location of production is listed.

Here are a few of the plants that are current on my Do Not Plant list:

Roses

Rose Rosette Virus: Rose rosette disease is a viral rose disease spread by a tiny insect. The virus is specific to roses with Rosa multiflora being its primary host. The disease is sometimes called witches’ broom because of the way it causes new shoots to grow straight up and close together in broom-shaped clusters. There is no cure. Once a plant is infected it should be burned to destroy the virus and the plant.
rose

Impatiens

Downy mildew: The spore causes impatiens’ leaves to turn spotted and yellow, and eventually fall off. Infected plants left in the garden can infect the soil, leading to a long-term problem. The plants wither away. It’s such a devastating disease that many growers are not growing Impatiens this year.
Impatiens_Downy_Mildew

Redtips

Leaf spot, caused by the fungus Entomosporium maculatum, is a widespread and destructive disease of red tip (Photinia fraseri), loquat (Eriobotrya japonica), India hawthorn (Rhaphiolepis indica), some pear cultivars (Pyrus sp.) and several other members of the rose family. This disease is most damaging to plants in the landscape and nurseries during periods of cool, wet weather and when active growth is occurring.

Below: Entomosporium leaf spot on a redtip photinia.
O5a_RedTipPhotinia
Tiny, circular, bright red spots on both the upper and lower surfaces of young expanding leaves are the first symptoms of Entomosporium leaf spot. Numerous small spots may coalesce into large maroon blotches on heavily diseased leaves. Leaf spots on mature leaves have ash brown to light gray centers with a distinctive deep red to maroon border. Tiny black specks, spore producing bodies of the fungus, can often be observed in the center of each leaf spot

So I guess the moral of my short story would be that if a plant is in vogue and everyone is planting it everywhere- you might want to be careful. In a few years some disease or pest might just be following it around the country just waiting for the right time to strike!

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Filed under General Gardening

Amazing…..

Things are coming together. The back yard is looking mighty awesome this Spring! The Viburnum plicatum Mariesii (to the left in the picture below) and the Formosa Azaleas (to the right) are my favorite Spring bloomers! After 10 years of rehabbing this old garden I think this is the best! In the background of the picture is the Kwanzan Cherry, which is finishing up it blooming cycle.Spring Garden

Some new things have been added and many, many old plants were salvaged and after major rehabilitation have become great showpieces. These old-fashioned hydrangeas all came from an old and overgrown plant I found behind the storage shed.

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Many trees removed. This area had five large trees removed. In season, it is full of wildflowers and daisies.

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Many pounds of wildflower seeds planted. Along the street I have a mixture of wildflowers and daylilies.

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And the addition of a dog from the local dog shelter!

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Did I mention Gus?

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The evolution of this old garden has been amazing!

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Filed under Design, General Gardening, Gus, Plants

The pine and oak pollen season is coming to an end!

For those of us with pollen allergies this is our most anticipated time of the spring season!

The pine and oak pollen cones are falling and it’s windy today with a chance of rain showers this afternoon! This means the pollen may be gone very soon!

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The male cones of the pine are called microstrobus and the female cones are called megastrobus. This makes sense considering their size in relation to each other!

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The oak pollen catkins are falling, too. Their pollen can be almost as bad as the pines. It just depends how many are in you neighborhood.

Once all the pollen is out of the air it’s time for a thorough Spring cleaning, especially the window sills and storm windows!
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Filed under Plants, Seasonal Maintenance