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
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Polianthes tuberosa 'The Pearl' is a double-flowered tuberose known for its highly fragrant, creamy-white blooms. The flowers appear on tall spikes, reaching up to 4 feet, and open in succession, ensuring a long-lasting display. Blooming in mid to late summer, this variety thrives in full sun with well-drained soil and requires consistent moisture during the growing season. Hardy in USDA zones 7 to 10, it performs best when lifted annually in colder climates to encourage strong re-blooming. The sweet, intoxicating fragrance makes it a favorite for gardens and cut flower arrangements.
Planting: Plant tubers in spring after the last frost. Set them 2 to 3 inches deep in well-drained soil, with the pointed end up. In cooler zones, start them indoors or grow in containers for easier lifting.
Spacing: Space 6 to 8 inches apart to allow for mature spread and airflow.
Light: Full sun is best—tuberose thrives in hot, sunny locations.
Soil: Loose, well-drained soil enriched with compost or organic matter. Avoid heavy clay.
Watering: Keep soil consistently moist during active growth and bloom. Reduce watering after flowering as the plant enters dormancy.
Temperature & Humidity: Hardy in USDA zones 8–10. In colder zones, lift and store tubers in a cool, dry place over winter.
Fertilization: Apply a balanced fertilizer at planting and again mid-season. Avoid high-nitrogen formulas that promote foliage over flowers.
Pruning: Remove spent flower stalks to tidy the plant. Let foliage yellow naturally before cutting back.
Propagation: Multiplies by offsets. Divide and replant in spring.
Pest & Disease: Generally pest-free. Ensure good drainage to prevent rot.
| Height | 36-48 Inches |
| Spread | 8 Inches |
| Spacing | 6-8 Inches |
| Hardiness Zone | 3-10 |
| Color |
White |
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