White is the second most useful colour in the garden after green. I am progressively increasing the number and variety of white and grey plants that I grow.
13.07.2023 - 04:57 / gardenerspath.com / Helga George
How to Identify and Treat Hydrangea DiseasesThere are few things more beautiful than lush hydrangea bushes. Unfortunately, their beauty can be sullied by a number of fungal and viral diseases (and two bacterial diseases).
However, there are steps you can take to keep your beauteous shrubs from falling victim to one of these diseases.
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We will introduce you to the major hydrangea diseases, so you know what to look for and how to prevent and treat them.
Fungal DiseasesBotrytis Blight (Botrytis cinerea)This fungus can severely affect the flower buds and even kill them before they open. In addition, infected flower parts can fall on the leaves and infect them.
The first symptoms are water-soaked spots on the flowers. However, these grow into reddish brown lesions.
Botrytis is more likely to be a problem under cool and damp conditions, such as several days of cloudy, humid, and rainy weather.
You can take steps to try and prevent this infection. Keep the humidity low. Don’t water late in the day, and only water at the roots, so you don’t get the flowers and leaves wet.
If you can, keep good airflow around your plants. Space them properly, and prune branches that are closely spaced. Treat your pruning shears with bleach as you prune, so you don’t accidentally spread any disease.
Also remove dead or damaged flowers and leaves to prevent the fungus from gaining egress into the plant. Clean up debris around the plant, so that Botrytis can’t live on the dead tissue.
If you have a persistent problem, you may need to use fungicides. Options include iprodione, or thiophanate-methyl.
Leaf Spots (Cercospora species and PhyllostictaWhite is the second most useful colour in the garden after green. I am progressively increasing the number and variety of white and grey plants that I grow.
First, the workshop back story: Last year, Bob Hyland and I started teaching together again, something we hadn’t done in more than a decade, not since our “old lives” in New York City, where he was head of horticulture for Brooklyn Botanic Garden. What started as, “Do you want to do a container workshop at Berkshire Botanical Garden together?” turned into another and another over at his nursery. The bug bit us; we remembered how much fun we have working together this way, so this year’s schedule reflects that.The April and September workshops begin here with light breakfast, tours and teaching in the garden, then we all head over to Loomis Creek for two-plus hours more learning. Hope to see you at some of the events.MARCH Sunday, March 7 – Reading at Berkshire Botanical Garden, Stockbridge, MA, with my sister, Marion Roach Smith, to celebrate Paris Press’ publication of its “Sisters” anthology. 2 PM. Free, but must RSVP to in
Bill Logan and I talked about how mankind learned to use trees and evolved alongside them with their help; about pruning tactics like pollarding and coppicing; and also how nearly immortal trees are.Read along as you listen to the May 20, 2019 edition of my public-radio show and podcast using the player below. You can subscribe to all future editions on iTunes or Spotify or Stitcher (and browse my archive of podcasts here).Plus: Enter to win the book, in the comments box at the very bottom of the page.our relationship with trees, with bill loganMargaret: Welcome, Bill. Is it O.K. if I say Bill since everyone we know
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