How to Grow Crimson Wonder Sedum
Crimson Wonder Sedum
Sedum spurium 'Crimson Wonder'
flowerCrimson Wonder Sedum is a low-growing succulent groundcover known for its vibrant deep red foliage that intensifies in cool weather and full sun. It produces small pink to red flowers in summer and spreads via trailing stems, making it excellent for rock gardens, containers, and borders. This hardy perennial is drought-tolerant and requires minimal maintenance once established.
When should you plant Crimson Wonder Sedum in your zone?
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Example Crimson Wonder Sedum timeline · Pittsburgh, PA (Zone 6b)
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Plant Crimson Wonder Sedum
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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First Crimson Wonder Sedum blooms
Around Apr 21≈ 4 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Crimson Wonder Sedum dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9, extremely cold-hardy and heat-tolerant
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Get my Crimson Wonder Sedum timeline →Growth Stages
Establishment
2-4 weeksNewly planted rooted pieces or transplants begin producing new stems and settling into the soil. Foliage is typically green or mottled red.
Keep soil lightly moist for 2-3 weeks until roots establish. Avoid full sun stress during this period if possible. Protect from heavy rain.
Vegetative Growth
4-12 weeksPlants develop multiple trailing stems and expand outward. Leaves increase in size and begin deepening in color as temperatures cool or sun exposure increases.
Reduce watering as roots deepen. Full sun exposure now encourages red coloration. Minimal feeding needed; avoid fertilizer if possible.
Flowering
4-8 weeks (typically July-September)Small, 5-petaled pink to red star-shaped flowers appear on terminal clusters. Flowers are delicate and attract bees and pollinators.
Maintain dry conditions around the base to prevent rot. Flowers typically last 2-3 weeks. No deadheading required unless aesthetic preference.
Dormancy/Winter
3-4 monthsFoliage deepens to dark crimson or burgundy in cold weather. Growth slows significantly. Plant appears dull or wilted in extreme cold but remains alive.
Cease watering entirely unless in prolonged drought. No fertilizer. Protect in containers by moving to sheltered location or wrapping pots. Ground plantings require no protection in zones 3-9.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with neem oil or insecticidal soap; ensure good air circulation; reduce overwatering which promotes infestation
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Spray with water to dislodge; use neem oil or insecticidal soap if infestation is heavy
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Prevent through excellent drainage and avoiding overwatering; remove affected plants; improve soil aeration
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and
Remove manually; avoid mulch; ensure dry conditions; copper barriers in container gardens
Uses
Rock Gardens & Groundcover
OrnamentalIts spreading habit and vibrant crimson foliage make it ideal for rock gardens, alpine troughs, and as a drought-tolerant groundcover. It softens hardscape edges and provides visual interest year-round. [source]
Container & Living Roof Gardening
CraftExcellent for shallow containers, green roofs, and living walls due to minimal root requirements and low water needs. Its low profile and trailing habit create attractive cascading displays. [source]
Pollinator Support
WildlifeThe small pink-red flowers attract bees, butterflies, and other beneficial insects, making it valuable for pollinator gardens and wildlife-friendly landscapes. [source]
Easy, Low-Maintenance Landscaping
HouseholdPerfect for gardeners seeking a hardy, drought-tolerant plant that requires no fertilizer, minimal watering, and works in poor soils. Ideal for xeriscaping and water-wise gardens. [source]
Harvest Tips
Crimson Wonder Sedum is ornamental and not typically harvested for food. Stems can be cut for propagation at any time during the growing season—simply insert into dry, gritty soil and allow to root. Deadheading flowers is optional and primarily for aesthetics; remove faded flower clusters if desired.
Fun Facts
- 🌱 Crimson Wonder Sedum can survive and thrive in zones as cold as -40°F (-40°C), making it one of the hardiest ornamental sedums available.
- 🌱 The plant's dramatic color change from green to deep crimson is triggered by cool temperatures and high light exposure—the red pigments (anthocyanins) act as a natural sunscreen to protect leaves from UV damage.
- 🌱 A single fallen leaf can root and grow into a new plant, making propagation almost foolproof; simply press leaves onto moist soil and they will eventually produce roots.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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