Jessica Walliser

Cedar apple rust beautiful, harmful

There's a fungus among us, one that is both fascinating and destructive. It's called cedar apple rust (Gymnosporangium juniperivirginianae), and it requires two different host ...

Not enough sun, too much nitrogen can keep peonies from budding

Q uestion: We were given some peony plants by my sister-in-law four years ago. They came from her garden. The plants they came from always ...

Branch out with these less-common flowering annuals

It's annual planting time here in Western Pennsylvania, and while most gardeners are familiar with common flowering annuals such as marigolds, geraniums, petunias and impatiens, ...

Alyssum attracts beneficial insects that will control aphid problems

Q uestion: We have several rose bushes in our garden. All were birthday gifts given to me by my children. They get me a new ...

Fight tomato disease from the start

A few weeks ago, I offered some tips on planting tomatoes successfully. Now that tomato planting time is upon us, I thought it would be ...

Fresh wood chips can suck the nitrogen away from veggies and flowers

Q uestion: We had a large maple tree removed from our property. The company that took it down left a pile of fresh wood chips ...

Layering system fills out containers

There's an expression that's frequently used among container gardeners: "Every container needs a thriller, a filler and a spiller." Remembering this simple expression makes it ...

Covering cauliflower is essential for keeping heads white, mild-tasting

Q uestion: I'm growing cauliflower in my garden for the first time this year. I understand I have to blanch the heads in order to ...

Walliser: Choose sweet bell peppers that suit Western Pennsylvania

Sweet bell peppers are among the most popular garden crops. Often found growing side-by-side with tomatoes and eggplants, these warm-season vegetables have a lot to ...

Now is the time to harvest oregano for best flavor when drying

Q uestion: I planted oregano in my garden last summer, and it seems to be doing really well. The plant is lush and green. I'd ...

When growing carrots in containers, choose the correct pot and soil

Q uestion: I'm going to be growing some vegetables in containers for the first time this year. I'm going to plant tomatoes, peppers and eggplants ...