Spanish Lavendar Question

Spanish Lavendar Question

I have a spanish lavendar plant which was previously lush and full of bright purple blossoms (shown here, but tiny). Months later, the blossoms have all faded to a dead-grey color, but so have the leafy parts. I neglected to water it for a few weeks (though I thought lavendar could withstand drought)...and now I'm wondering if I've killed it, or if it's just going through a dormant stage. Sorry, I don't have any current pics, but does anyone know if my plant will pick up again or if I should dig it up and start over?
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