Nasturtium Officinale. Perennial herb with rounded, pinnate leaves. Racemes of white flowers. Rich in vitamins and minerals, including iron and calcium. Great along stream beds, fresh ponds or a shallow dish of water. Grows 2-5" tall, creeping 32" wide. Blooms in summer. Full sun to full shade. Plant in rich moist soil under up to 2" of fresh water. Annual