In a large saucepan, bring the water, bouillon, garlic, curry powder, salt, pepper and mint to a boil. Stir in peas and celery. Return to a boil. Reduce heat; cover and simmer for 6-8 minutes or until peas and celery are tender. Cool slightly.
Place pea mixture and milk in a blender; cover and process until blended. Return to saucepan. Stir in cream; heat through (do not boil). Stir in lemon juice. Garnish with fresh mint if desired.