How to Grow Hexagon Stonecrop
iNaturalist
Hexagon Stonecrop
Sedum sexangulare
succulentSedum sexangulare is a low-growing, mat-forming succulent native to central and southern Europe, characterized by tiny hexagonal-shaped leaves arranged in dense rosettes. It produces delicate yellow star-shaped flowers in summer and is extremely drought-tolerant, making it ideal for rock gardens, alpine troughs, and green roofs.
When should you plant Hexagon Stonecrop in your zone?
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Example Hexagon Stonecrop timeline · Pittsburgh, PA (Zone 6b)
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Plant Hexagon Stonecrop
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Hexagon Stonecrop
Around Apr 21≈ 4 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Hexagon Stonecrop dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Hardy in zones 3-9, thrives in cooler climates and tolerates extreme cold
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Get my Hexagon Stonecrop timeline →Growth Stages
Establishment
2-4 weeksTiny rosettes develop fine root systems and begin spreading horizontally across soil surface
Keep soil barely moist until established (2-3 weeks), then reduce watering significantly. Ensure excellent drainage.
Vegetative Growth
Spring through early summerDense mat of hexagonal leaves spreads outward, forming tight cushions and low mounds
Minimal care needed; allow to dry between occasional waterings. Remove dead leaves or debris.
Flowering
6-8 weeksDelicate clusters of tiny yellow star-shaped flowers emerge on short stems above foliage
Flowers typically appear mid to late summer. Deadheading is optional; some gardeners leave flowers for seed production.
Seed Set
2-3 weeks post-floweringFlowers fade and develop small seed capsules if not deadheaded
Allow to dry fully. Seeds can be collected for propagation or left to self-seed.
Dormancy
October through MarchPlant growth slows in fall and winter; foliage may take on reddish or bronze tones in cold weather
No supplemental watering needed. Protect from excessive wet conditions rather than cold.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove with rubbing alcohol on a cotton swab; spray with insecticidal soap if severe; improve air circulation
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Ensure perfect drainage; never overwater; remove affected sections and repropagation from healthy tissue
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Spray with water to increase humidity; use miticide if populations are heavy; thrips predators helpful
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and
Handpick; use copper barriers or diatomaceous earth; less problematic in dry garden conditions
Uses
Green Roof and Living Roof Systems
HouseholdSedum sexangulare is an ideal pioneer plant for extensive green roofs and living walls due to its minimal weight, drought tolerance, and ability to establish quickly. It requires no maintenance once established and improves building insulation. [source]
Pollinator Support
WildlifeThe yellow flowers attract bees, small butterflies, and other beneficial insects during summer, providing a nectar source when other plants may be sparse. [source]
Rock Gardens and Alpine Troughs
CraftIts compact, low-growing habit and attractive hexagonal foliage make it ideal for creating alpine landscapes, between paving stones, in hypertufa troughs, and miniature gardens. [source]
Erosion Control and Ground Cover
HouseholdThe dense mat form stabilizes soil and prevents erosion on slopes and embankments while requiring virtually no maintenance or water once established. [source]
Traditional Herbal Use
MedicinalSedum species have been used in traditional European and Asian herbalism for centuries; Sedum sexangulare is occasionally employed in herbal preparations for skin and digestive support, though scientific evidence is limited. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Sedum sexangulare is not harvested for food or medicinal use. For propagation, collect leaves or stem fragments during growing season (spring/early summer) and allow to dry for 2-3 days before placing on gritty soil. Tiny rosettes will root and establish within 3-4 weeks.
Fun Facts
- 🌱 The scientific name 'sexangulare' refers to the plant's distinctive six-sided (hexagonal) leaf arrangement, which is visible when viewing rosettes from above.
- 🌱 Sedum sexangulare is so cold-hardy that it overwinters successfully in USDA zone 3 and can survive winter temperatures well below -30°F with proper drainage.
- 🌱 This species is native to rocky alpine and subalpine areas across central and southern Europe (including the Caucasus), and has naturalized in many temperate regions worldwide through horticulture and accidental introduction.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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