Breaking News         Latest US News              New York News              Fx Tribune

Extracting the best Quality Mother of the Groom Dresses
Sign up for one of our email newsletters.Updated 8 hours ago Question: When should you fertilize azaleas and rhododendrons? Is it better to do it in the spring or the fall? What happens if you fertilize in the winter? Answer: Azaleas and rhododendrons are...

Proper fertilizing keeps azaleas and rhododendrons looking good all season

Sign up for one of our email newsletters.Updated 8 hours ago Question: When should you fertilize azaleas and rhododendrons? Is it better to do it in the spring or the fall? What happens if you fertilize in the winter? Answer: Azaleas and rhododendrons are...

Proper fertilizing keeps azaleas and rhododendrons looking good all season

Sign up for one of our email newsletters.

Updated 8 hours ago

Question: When should you fertilize azaleas and rhododendrons? Is it better to do it in the spring or the fall? What happens if you fertilize in the winter?

Answer: Azaleas and rhododendrons are very common landscape plants here in Pennsylvania, probably due to their evergreen nature and beautiful flowers. They make terrific foundation plants, and when grown in the right conditions, they're easy to care for.

In their native habitats, both azaleas and rhododendrons are understory shrubs, meaning they much prefer full to partial shade conditions, especially during the hot afternoon hours. They are not a good choice for areas of the landscape that receive full sun. When planted in full sun, azaleas and rhododendrons often suffer from infestations of an insect pest called lacebug. To grow the best azaleas and rhododendrons, site them properly.

Another thing these two plants have in common is their need for acidic soil. Azaleas and rhododendrons grow best in woodland areas with a soil pH between 4.5 and 5.5, so even when you're growing them as a landscape plant, this pH requirement is necessary. If your soil's pH is not optimal, these two plants will show it with leaves that turn yellow between their leaf veins (called interveinal chlorosis), slow growth, and reduced flowering.

Azaleas and rhododendrons, along with most other evergreens, require an acidic soil because an acidic pH level increases the availability of iron in the soil, a nutrient evergreen plants need a lot of to support their year-round foliage. Because of this, before fertilizing any azaleas and rhododendrons, I always recommend getting a soil test (available from the Penn State Extension Service; 724-837-1402 in Westmoreland County and 412-482-3476 in Allegheny County) to make sure the soil pH is optimum. The plants may not need to be fertilized; you may only need to adjust the pH to make them happy and healthy. Typically, elemental sulfur or ferrous sulfate is used to adjust the pH, but how much you'll need to use is dependant on the existing pH of your soil.

If you test your soil and the pH is optimal, and you're growing these plants in well-drained soil that's high in organic matter, fertilization is seldom necessary. But, if soil test results come back informing you that your rhododendrons and azaleas do, in fact, need to be fertilized, choose an acid-specific granular fertilizer, such as HollyTone, to do the job.

Fertilization of these plants is best done in the early spring, just before they flower and enter a period of active growth.

Fertilizing in the late summer or autumn generates new, late-season growth that's susceptible to damage from freezing winter temperatures because it does not have time to harden-off before frosts arrive.

Winter fertilization should be avoided as well. Since the plant is not in an active state of growth during the winter, most of the nutrients are likely to run off before they can be absorbed by the plant the following spring. It would likely be a waste of your money and time.

Horticulturist Jessica Walliser co-hosts “The Organic Gardeners” at 7 a.m. Sundays on KDKA Radio with Doug Oster. She is the author of several gardening books, including “Attracting Beneficial Bugs to Your Garden: A Natural Approach to Pest Control” and “Good Bug, Bad Bug.” Her website is jessicawalliser.com. Send your gardening or landscaping questions to tribliving@tribweb.com or The Good Earth, 622 Cabin Hill Drive, Greensburg, PA 15601.

Our editors found this article on this site using Google and regenerated it for our readers.

Publish Date : 24 Şubat 2017 Cuma 04:45

Breaking News Headlines

Challenges of Studying MBA online and Suggestions to Overcome Them
Challenges of Studying MBA online and Suggestions to Overcome Them
Was Road-Rage To Blame For This New Jersey Semi-Truck Accident?
Was Road-Rage To Blame For This New Jersey Semi-Truck Accident?
Tobacco is the leading cause of cancer – Switch to e-cigs to avoid premature death
Tobacco is the leading cause of cancer – Switch to e-cigs to avoid premature death
Technology Advancements: How will Things Change?
Technology Advancements: How will Things Change?
Bad Science – Ensuring We Keep Things Simple
Bad Science – Ensuring We Keep Things Simple
A Meaningful Life: Just What You Need for Better Health
A Meaningful Life: Just What You Need for Better Health
What to Expect at the Canadian Citizenship Test and Tips to Prepare
What to Expect at the Canadian Citizenship Test and Tips to Prepare
Tipping in America- What Should You Know as a Traveler?
Tipping in America- What Should You Know as a Traveler?
Sepi proposes to the ex-minister Miguel Sebastian as a director of Indra
Sepi proposes to the ex-minister Miguel Sebastian as a director of Indra
There are two Spains in the employment
There are two Spains in the employment
Valerio dodge the shock with the CEOE and downgrade to 7% the rise of the bases maximum contribution
Valerio dodge the shock with the CEOE and downgrade to 7% the rise of the bases maximum contribution
Spain puts an end in the EU in four years of cuts in the quota of hake south
Spain puts an end in the EU in four years of cuts in the quota of hake south
POLLS Results ALL
Who is the most powerful actor in Syria

Front Pages
  • The Sun
NEWS ARCHIVES