Rheum Rhabarbarum Glaskin (2.5L) is a fast-growing heirloom rhubarb with slender, bright red and green stems known for their low oxalic acid content. Ideal for edible gardens and large pots in Auckland, this hardy perennial thrives in full sun to partial shade. Grow in deep, fertile, well-draining soil with regular watering and feeding for a productive harvest.