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      • Begonia 'Bonfire'
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Salvia ‘Black and Blue’

Closeup of 'Black and Blue.' Note the unusual black base of the flowers.

* Common name: Salvia ‘Black and Blue’

* Botanical name: Salvia guaranitica ‘Black and Blue’

* What it is: An upright perennial farther south but an annual here that sometimes overwinters with protection. Main attraction is tubular, steely-blue flowers in summer that are absolute hummingbird magnets. Flowers have jet-black bases.

* Size: 30-36 inches tall, 2 feet around

* Where to use: Makes a nice pot centerpiece but also does well in any sunny garden with reasonably decent soil. No soggy clay. Use one or more outside a window so you can watch the hummingbirds from inside.

* Care: In a pot, water regularly to keep soil consistently damp. Fertilize every week or two with a high-phosphorus fertilizer. Less water and fertilizer needed in the ground. Snip off spent flower tips to encourage new blooms. Spraying not needed.

* Great partner: Any silver-leafed plant, such as dusty miller, licorice plant or dichondra ‘Silver Falls.’

'Black and Blue' potted on George's patio.


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