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Gladiolus bulbs are a summer blooming classic with blooms available in basically any color imaginable. Orchid-like blooms appear on flower stalks above sword-shaped leaves. Gladiolus are a favorite in summer garden beds and borders and are a great addition to cutting gardens.
About this Variety
Gladiolus Rose Supreme is a standout in the garden with its striking, vibrant color and ruffled blooms. There is no other Gladiolus quite like it.
- Very easy to grow and maintain
- Great for cut flower arrangements
- Grows well in containers, borders, rock gardens & mass plantings
- Adds beautiful color to the summer garden
- Beneficial to pollinators; attracts butterflies and hummingbirds
Full sun to partial shade
Grows 36-48" tall
Plant 4-6" apart, 4-6" deep
Grow as Perennial in zones 7-10, Grow as Annual elsewhere.
Plant Gladiolus in the spring after all danger of frost has passed. Plant in a full sun to partially shaded location. Gladiolus loves soil that is rich, porous and drains well but still holds enough water for the roots. If your soil is heavy clay and drains slowly, or very sandy and does not hold water, add organic soil amendments like peat moss or ground bark. Spread a 3-4 inch layer of soil amendment if needed, add fertilizer and incorporate into the soil to a depth of 10 inches. Plant in groups with corms spaced 4-6" apart for the best show. Gladiolus corms should be planted 4-6" deep. Water thoroughly at planting. Water regularly while growing and in bloom so that water will reach the roots. Mulch to keep the soil cool and to prevent the soil from drying out. After planting, fertilize sparingly on top of ground with any good plant food. A repeat application should be made in summer. Must be staked if planted in windy areas. After blooming, let corms grow until plants have turned brown or until danger of frost. Dig, dry, clean and store in a dry, cool place at 40-50ºF to over winter.
Plant Gladiolus corms in groups of 10 or more for a dramatic garden display. Soil should be kept moist during dry periods.