Helios Clematis - Tangutica -The Best Yellow - 2.5" Pot Hardy Zones 4-9. Winner of the Dutch Award of Merit in 1988 for the best yellow-flowered clematis A small-flowered, coconut-scented variety, 2"-4" in diameter Flowers are followed by decorative seed pods which can be used in dried flower arrangements Blooms from June through October Immediate shipping. Dormant shipping in winter.