Gomphocarpus physocarpus. Unusual, pale green, balloon-like fruit follow small, white flowers on tall arching stems. Monarch caterpillars feast on the foliage. NOTE: Poisonous if ingested. Balloon-like fruits make an interesting and long lasting cut flower. A stunning border specimen! Grows over 48" tall. Blooms late summer through fall. Full sun to light shade. Plant in well-drained soil after all danger of frost. Annual