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Columnist
Tribune-Review Horticulturist Jessica Walliser co-hosts 'The Organic Gardeners' at 7 a.m. Sundays on KDKA Radio. She is the author of several gardening books, including 'Grow Organic' and 'Good Bug, Bad Bug.' Jessica Walliser can be reached via e-mail

Snow can be positive for garden, but negatives can be a slippery slope

By Jessica Walliser
Believe it or not, all the snow Western Pennsylvania received this week isn’t as bad for the garden as you may think. Yes, heavy snows ...

Garden Q&A: Tuberous begonias’ beauty fleeting

By Jessica Walliser
Q uestion: I love tuberous begonias and have had quite a few over the years. They are absolutely beautiful until they get powdery mildew on ...

This time of year, holly can add an evergreen shine

By Jessica Walliser
Hollies are among the most beautiful landscape plants during the long, cold days of winter. While many other shrubs have few, if any, positive attributes ...

Garden Q&A: Some okras can be grown in Pa.

By Jessica Walliser
Q uestion: I would like to grow okra in my garden, but I’m not sure if it’s possible to grow a decent crop this far north. Do you have any advice? Answer: Not only is it possible to grow ...

January 2015 a good time to plan defense against tomato maladies

By Jessica Walliser
With the snow and cold temperatures we’ve been enduring the past few weeks, it’s hard to believe that I’ve been hearing from a lot of ...

Garden Q&A: Roses relatively easy to propagate

By Jessica Walliser
Question: Could you please tell me how to propagate a rose? My husband transplanted a rose from my mother-in-law’s yard to her grave. We would like to take a clipping and plant the rose in our yard. How do we ...

Gardenias need much care in our climate

By Jessica Walliser
Gardenias are one of my favorite flowers, but caring for the plants is tricky business. Gardenia jasminoides is a beautiful tropical plant that produces pure-white ...

Garden Q&A: Simple to harvest herbs in winter

By Jessica Walliser
Question: I read your column about basil downy mildew in the Nov. 23 issue of the Trib. I love basil and plan to follow ...

New year brings new things to grow

By Jessica Walliser
The start of the new year is always a great time to take a look at all the up-and-coming plant varieties in the gardening world. ...

Garden Q&A: Aphids thrive on plants that are brought indoors

By Jessica Walliser
Question: I have a large red banana tree in a pot that I put on my patio every summer. I move it into the garage ...

How to keep green thumbs occupied for 2015

By Jessica Walliser
While winter is often a forced rest period for gardeners, it doesn’t necessarily have to be. If you like to keep your hands in the ...