In a large saucepan, heat oil over medium heat. Add celery and carrots; cook and stir for 6-8 minutes or until tender.
Add garlic, ginger, curry powder and turmeric; cook 1 minute longer.
Add broth, coconut milk, potato and salt; bring to a boil. Reduce heat; cook, uncovered, 10-15 minutes or until potato is tender.
Meanwhile, heat rice according to package directions.
Stir rice into soup. If desired, serve with lime wedges.
