Through the years I've tried just about everyone for bulbs but A.D.R. is tops. It's a family run business and the service levels and expertise are as good as the product they sell. My clients rave about the results we get with A.D.R. and that makes me happy.
Paul Keyes
, Paul Keyes Associates
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Iris chrysographes ‘Black Form’ is a striking perennial bearing deep purple, nearly black blossoms. Each petal displays a delicate yellow ribbon, creating a dramatic contrast. More refined than bearded irises, its elegant flowers sway atop slender stems above sword-like foliage. Blooming from early to mid-summer, this iris thrives in full sun to partial shade and prefers moist, well-drained soil. Ideal for borders, meadows, and streamside plantings, it offers a bold splash of color with minimal maintenance.
| Description | Price | |||
|---|---|---|---|---|
| Bundle of 25 tags | $2.50 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU TAGS is restocked. | ||||
| Bulk Box of 25 Roots, Size #1 Div | $60.50 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU SBIN55402501 is restocked. | ||||
Planting: Plant rhizomes in spring or fall, 2 to 3 inches deep with the top just below soil level. Space 12 to 18 inches apart. Choose a site where moisture is consistent but not stagnant.
Location: Full sun to partial shade. Ideal for bog gardens, pond edges, or moist borders.
Soil: Moist, humus-rich, well-drained soil with a slightly acidic to neutral pH (6.0–7.0). Avoid dry or compacted areas.
Watering: Keep soil consistently moist during the growing season. Allow the top layer to dry slightly between waterings to prevent rhizome rot.
Temperature: Hardy in USDA zones 3–9. Tolerates cold winters and thrives in cool, damp conditions.
Fertilization: Apply compost or a balanced fertilizer in early spring. Avoid overfeeding—excess nitrogen can reduce bloom quality.
Pruning: Remove spent flower stalks after blooming. Cut back foliage in late fall or early spring to tidy the plant.
Propagation: Divide clumps in midsummer to early fall. Replant divisions immediately in moist soil.
Pest & Disease: Generally pest-free. Watch for slugs, snails, and gray mold in humid conditions.
| Height | 16 Inches |
| Spread | 12-18 Inches |
| Spacing | 18-24 Inches |
| Hardiness Zone | 4-9 |
| Color |
Black |
49 Black Meadow Rd
Chester, NY 10918 USA
Phone: (800) 990-9934
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