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Iris Germanica 'Presby's Crown Jewel'
Bearded Iris
Bearded Iris 'Presby's Crown Jewel' is a reblooming tall bearded iris, reaching 36 inches in height. It features white petals edged with a deep blue-violet plicata border. The diamond-like beards tipped in lemon yellow add a luminous touch to its mid-season blooms.
This iris thrives in full sun to part shade and prefers well-drained soil with neutral to slightly alkaline pH. It is deer-resistant and produces 7 to 9 buds per stalk, ensuring an abundant floral display. It has received multiple awards, including an Honorable Mention in 2004 and an Award of Merit in 2007.
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When should I plant Iris Germanica 'Presby's Crown Jewel'?
Growing and Maintenance Tips for Iris Germanica 'Presby's Crown Jewel'
Planting: Plant rhizomes in late summer to early fall or early spring. Set them horizontally with the top of the rhizome just at or slightly above soil level. Space 12 to 24 inches apart for good air circulation.
Location: Full sun is ideal (6+ hours daily). In hot climates, light afternoon shade helps prevent leaf scorch.
Soil: Well-drained, moderately fertile soil with a neutral to slightly acidic pH (6.0–7.0). Avoid heavy or soggy soils—add grit or compost to improve drainage.
Watering: Water after planting and during dry spells. Once established, bearded irises are drought-tolerant and prefer drier conditions.
Temperature: Hardy in USDA zones 3–9. Tolerates cold winters and summer heat.
Fertilization: Apply a low-nitrogen fertilizer (e.g., 5-10-10) in early spring and again after blooming. Avoid overfeeding.
Pruning: Remove spent flower stalks and yellowing leaves. Cut foliage to 6 inches in late fall to reduce overwintering pests.
Propagation: Divide rhizomes every 3 to 4 years in late summer to maintain vigor and prevent overcrowding.
Pest & Disease: Watch for iris borers, soft rot, and leaf spot. Good drainage and air circulation help prevent issues.
Check back soon for additional details.