A new and distinct variety of Lobelia pedunculata named ‘ALMANDA BLUE’, particularly characterized by prolific, mid-blue, irregular flowers on long peduncles, a dense weeping habit and quick growth. Other desirable characteristics include female only flowers, upright flower peduncles, fast propagation from runners, a short timeframe to flowering from propagation, and tolerance to damp conditions. Plants prefer full sun to part shade and temperatures ranging from 0° C. to about 35° C., but will withstand minor frosts and heat extremes to about 40° C. for short periods.