Geranium ‘Storm Cloud’ exhibits a compact, bushy habit, yielding clusters of purple flowers. The blooming period initiates in late spring and extends through late summer. To prolong flowering, it is recommended to deadhead once the initial blooming phase concludes. This variety thrives in borders and wildlife gardens, where its vibrant flowers contribute to attracting pollinating insects. While hardy, caution is advised, and protection may be necessary in the event of severe frost.