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Green Speak

Horticulture topics from gardens to lawns and then some.
Plant Disease

Horticulture in the Movies: Interstellar

As winter approaches, there seems nothing better than to cuddle up on the couch and watch a movie. Watching movies is a favorite hobby of mine. And when movies mix horticulture into a plot, it gets my rapt attention. Toss in a little science fiction and you had me at the opening credits. The thing is, there are not very many movies that have horticultural themes or subthemes. My goal is...

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Garden Update – Mid August 2015

What's going on in the garden this week? Here is a snapshot of observations and questions coming into the Extension office. Out in the Garden Here in Illinois the rains stopped early July and have been sparse ever since. Gardens have needed supplemental water. With the abundance and then lack of rain we've lots of soil cracking. With all that rain how could our...

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Flooded high tunnel.
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Garden Update – Mid July 2015

What's going on in the garden this week? Here is a snapshot of observations and questions coming into the Extension office. Out in the Garden The rains have ceased and the lawn and garden beds are drying out. It is almost the end of July and I have yet to water a single plant this season, even containers! Lawns can tolerate a significant amount of standing water...

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Beebalm with prolonged standing water issues.
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Garden Update - Start of July 2015

What's going on in the garden this week? Here is a snapshot of observations and questions coming into the Extension office. Out in the Garden Rot, rot, rot. With all this rain landscapes and gardens have been suffering from saturated root zones. Here's a comparison of beebalm in the same planting area, only one is located where we've seen several days of...

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Using Landscape Chemicals Responsibly

This past summer, a homeowner called the local Extension office concerned about cicada killers. I immediately set about my normal talk describing the benefits of cicada killers and how they are not prone to sting humans. The homeowner graciously listened to my pitch and then said they understand, but they do not appreciate how the cicada killer makes their lawn surface so bumpy. I conceded thei...

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Dealing with Apple Scab

Apple scab Apple scab has been particularly active this year. Many who grow apples or crabapples have likely seen this disease before and may or may not know it. In fact apple scab is so common that plant pathologists expect to see it every year. With our wet and cool spring, apple scab has been particularly severe this summer. Apple scab ( Venturia inaequalis ) is a fung...

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Gardening Apps Part II

Gardening Apps Part II Disclaimer: University of Illinois Extension does not promote the use or purchase of a particular product. Reference to specific companies does not imply endorsement by University of Illinois Extension, nor is discrimination intended against any that are not listed. As promised, I have the results from my gardening app evaluation. For all those who sent in...

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Impatiens Got You Down?

It sure seems like it has been awhile since I posted an entry. Oh wait, it has been awhile! I must keep this up for my following of 2. Hi mom & dad! I received an email earlier this month regarding downy mildew on impatiens ( Impatiens walleriana ), which spurred the idea for this article. Impatiens downy mildew has been appearing sporadically throughout the Midwest for the p...

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