Redstorm lily flower in bloom.
image by Amanda Fears: Wikimedia Commons
Red storm border lilies are a varietal of Asiatic lily that produce multiple deep red flowers on sturdy stalks. They thrive in full sun to partial daily shade exposures and bloom in the summer. Their upright growth habit and height of up to 18 inches make them ideal for the back of borders or planted en masse in beds. They are hardy in USDA zone 3 through 8 and require little maintenance.
Plant your red storm bulbs in nutrient-rich, well-drained soil that has been tilled up and loosened. Bury the lily bulb 5 to 6 inches deep and plant multiple bulbs at 9-to-12 inch intervals. Dig a hole wide enough so that the bulb is surrounded by loosened soil.
Water your red storm bulbs so that the soil is kept evenly moist and never dries out. Depending on your climate, and the time of year, water anywhere from every two to ten days. Water at the roots and avoid watering over the foliage and blooms.
Feed your red storm lilies twice during the year with a granular bulb fertilizer. Make the first application in the early spring to boost the nutrient level and support summer bloom. Feed again in the fall to recharge the bulb for next season's bloom. Mulch around the base of the plants to hold in moisture and enrich the soil as it degrades.
Harvest your lily blooms just as the bloom begins to open for cut flower arrangements. Cut at the base of the stem with secateurs and remove any foliage that falls under the waterline. Allow the flower stems and foliage to die back in place in the fall to recharge the bulb as it fades. Cut the flower stems and foliage off in winter after it has entirely died back.