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Brunnera ?Jack Frost?
Brunnera ?Jack Frost?

Why are your summer plants turning brown - even in the shade? Add to ...

The question

I'm having problems with my Brunnera 'Jack Frost' - the leaves become covered with brown spots in July and August when the weather is hot and humid. The plants are in dappled shade.

The answer

It is probably a fungus. I have found that these plants do well in terrible soil, but really, really thrive in well-drained. Those in a raised bed do even better. In this case, it might be too much rain and the humidity. Replant it in a raised bed, give it a hit of compost and live in hope. It's a good plant, although one Brunnera to be wary of is B. 'Langtrees' - it has a pretty variegation but will spread everywhere.

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Visit www.marjorieharris.com for more gardening and plant information.

 

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