I am a landscape designer and have been purchasing 1000's of spring flowering bulbs from A.D.R. Bulbs for 100's of clients in the last 20 years. The bulbs have always been of top quality and if there were any problems, they have been quick to rectify. My orders are often complicated with many varieties and different amounts and they have always filled and delivered everything on time with the best customer care and attention to detail. The pictures in their catalog and website are beautiful. I have visited their facility in NY and was impressed with all their handling equipment and organization. I would highly recommend A.D.R. Bulbs to anyone in the wholesale trade who wants to purchase quality bulbs and work with genuinely nice people.
Nancy Greenlee
, From The Ground Up
« Previous Plant | Next Plant »
Iris siberica 'Butter & Sugar' (Ships in Spring)
Siberian Iris
Iris sibirica 'Butter and Sugar' is a standout Siberian iris with elegant white standards and bright yellow falls, creating a striking bicolor effect. Blooming from late spring to early summer, its slender, grass-like foliage remains attractive throughout the season. This award-winning perennial thrives in full sun to part shade and prefers moist, well-drained, slightly acidic soil. Ideal for borders, rain gardens, and pond edges.
| 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, #1 Div. | $43.00 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU SGW000129 is restocked. | ||||
Iris Calculator
Growing and Maintenance Tips for Iris siberica 'Butter & Sugar' (Ships in Spring)
Planting: Plant rhizomes in spring or fall, 1 to 2 inches deep with the crown just below soil level. Space 12 to 24 inches apart. Water well after planting to settle the soil.
Location: Full sun to partial shade. In hot climates, light afternoon shade helps prevent leaf scorch.
Soil: Moist, well-drained, slightly acidic to neutral soil (pH 5.5–7.0). Enrich with compost or peat moss if needed.
Watering: Keep soil consistently moist during the growing season, especially in spring and early summer. Tolerates brief dry spells once established.
Temperature: Hardy in USDA zones 3–8. Cold-tolerant and thrives in northern climates.
Fertilization: Apply a balanced fertilizer in early spring and again after flowering. Avoid high-nitrogen formulas.
Pruning: Remove spent flower stalks and yellowing foliage. Cut back to the ground in late fall or early spring.
Propagation: Divide clumps every 3 to 4 years in late summer to maintain vigor and prevent overcrowding.
Pest & Disease: Low-maintenance and generally pest-free. Good air circulation helps prevent fungal issues.
Check back soon for additional details.