copper iris

The copper iris (Iris fulva 'Lois Yellow') should be watered liberally during the growing season, from spring through mid-summer. In general, water the plant until moisture is visible at a depth of 6-7 inches. When first planting, or during extended periods of dry weather, water more frequently to ensure the soil remains steadily moist. In the fall and early winter, cut back on watering to just once or twice a month. Over-watering is not recommended for this plant.

Copper Iris thrives in full sun, receiving at least 8 hours of direct sunlight a day. When in full sun, the plant grows an average of 18 inches in height with blooms of rich golden, yellow petals. When planting Copper Iris, be aware that in the hottest summer months, some shade throughout the day may be beneficial to the plant. It is important to find the balance between enough sun to keep Copper Iris healthy and producing lots of blooms, and not enough sun that weather will damage the foliage.

Copper iris should be pruned as needed, generally in late fall to early spring. Prune out any dead or diseased foliage, as well as any stems that have produced flowers in the current season. Prune stems back to a couple of inches above the ground, as this will encourage increased branching and flowering. It is also important to prune out any stems that have become over-mature or ‘leggy’. However, it is important to avoid over-pruning, as this can limit the plant's ability to flower and set seed. As a general rule, only remove roughly a third of the stems in order to maintain balance and vigor. Allow the plant to then rest in its new shape for several weeks before further pruning.