FAQs: Perennials

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My iris plants are rotting. Their stems have a really bad aroma. What causes that, and what can I do to stop it quickly?

My plants’ leaves have almost perfect circles cut into their edges. What kind of insect does that? I can’t find any insects on the plants, yet the damage keeps getting worse.

My violets are all scorched and brown. What causes that, and how do I stop it?

I like carnations, but most of the types I have tried seemed to “melt away” with the heat. Is that normal?

What types of ferns are best outdoors?

My bed of mixed colors of iris is now all white–the old-fashioned variety of “flag.” Did they mutate back to the white?

Why do my rose flowers fail to open properly? They’re brown and scorched looking, even as flower buds.

How do I lay out my perennial garden?

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