I have worked with A.D.R. Bulbs for almost 5 years now, and my company has sourced bulbs with them for longer than that. Communication is great - from ordering, to deliveries, to follow-ups on final product. I love the quality of the product as well as the service. We plant nearly 100,000 bulbs and A.D.R. keeps the whole process easy for us!
Louise Licata
, Bland Landscaping Co.
« Previous Plant | Next Plant »
Sedum Tall Upright Clumping 'Thunderhead'
Stonecrop
Sedum 'Thunderhead' is a upright stonecrop with large, dense clusters of deep rose-red flowers that transition to a dramatic burgundy in fall. Blooming from late summer into early autumn, its sturdy stems support the blossoms well, making it an excellent cut flower. The thick, gray-green foliage remains attractive throughout the season and provides winter interest when dried flower heads are left intact. Thriving in full sun with well-drained soil, this drought-tolerant perennial is ideal for borders, rock gardens, and pollinator plantings, attracting bees and butterflies while resisting deer.
| 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 | $119.50 | |||
Get Notified When Back In StockComplete this form and we'll notify you when SKU SGW4565640 is restocked. | ||||
Sedum Calculator
Growing and Maintenance Tips for Sedum Tall Upright Clumping 'Thunderhead'
Planting: Plant as soon as the soil is workable in spring. Soak roots in water for 3–6 hours before planting. Dig a hole wide enough to spread the roots, and set the crown just at or slightly below the soil surface. Avoid planting too deep—this can lead to rot.
Spacing: Space 18 inches apart to allow for mature spread and airflow.
Light: Full sun is best. Sedum thrives with at least 6 hours of direct sunlight daily.
Soil: Well-drained, sandy or gritty soil with a pH of 6.0–7.5. Amend with compost or sand to improve drainage.
Watering: Water thoroughly after planting. Once established, sedum is drought-tolerant and only needs occasional watering during dry spells.
Temperature & Humidity: Hardy in USDA zones 3–9, depending on variety. No winter protection needed once established.
Fertilization: Apply compost or a light dose of balanced fertilizer in early spring. Avoid overfeeding, which can cause floppy growth.
Pruning: Cut back stems in late fall or early spring. You can also give a mid-season trim in May or June to encourage compact growth.
Propagation: Divide clumps in fall or early spring. Sedum also roots easily from stem cuttings.
Pest & Disease: Generally pest-free. Good drainage and spacing help prevent rot and mildew.
Check back soon for additional details.