Iceberg Climbing rose bush (1 Plant) has a rich history, receiving the Award of Garden Merit from the Royal Horticultural Society and a high rating from the American Rose Society. Its white double flowers have 30 to 40 petals.bloom from June through October in U.S. Department of Agriculture plant hardiness zones 5 through 9.
Fertilizing and Soil Maintenance
Good soil and fertilization are crucial for healthy "Iceberg" roses, as salty soil and nutrient deficiencies can cause issues. To fix this, provide regular watering and use slow-release fertilizer every 6 to 9 weeks from February to June and again in September to mid-October. Adding a layer of mulch after pruning each year can also improve soil quality.
Irrigation
Proper hydration is crucial for Iceberg roses, especially during spring and summer when blooming occurs. Insufficient irrigation can cause soil salt buildup, impacting growth. Ensure well-drained soil and adjust watering frequency according to weather conditions, typically 2-4 times a week for outdoor plants and more for container-grown ones.