Sedum ‘Mojave Jewels Ruby’ (Stonecrop)

Summary: Compact upright stonecrop with dark ruby-purple to purple-black succulent foliage and rosy-red to deep pink flower clusters in late summer to early fall.
Use: Excellent for sunny borders, containers, rock gardens, gravel gardens, edging, pollinator gardens, dry slopes, and xeriscapes.
Highlight: Dramatic foliage color gives months of interest before the late-season flowers appear.
Note: Best in full sun and well-drained soil. Avoid wet, heavy sites, especially in winter.

• Planting: Plant in spring or early fall in sharply drained soil.
• Light: Choose full sun for the deepest ruby-purple foliage and strongest stems.
• Water: Water during establishment, then allow soil to dry between soakings.
• Feeding: Avoid rich feeding; lean soil keeps growth compact and sturdy.
• Pruning: Remove old stems in late winter or early spring before new growth appears.
• Propagation: Divide established clumps in spring, or root stem cuttings during active growth.
• Best use: Repeat in sunny borders for dark foliage rhythm, late flowers, and drought-smart structure.

What Is Sedum ‘Mojave Jewels Ruby’?

Sedum ‘Mojave Jewels Ruby’ is a compact upright stonecrop selected for dark foliage, sturdy growth, and late-season flower color. Upright stonecrops like this are often placed botanically in Hylotelephium, although they remain widely sold and searched as Sedum. For gardeners, the practical point is simple: this is a hardy, succulent-leaved perennial for sunny, well-drained places.

Ruby’s main strength is its long season of color. Many perennials shine only when they flower, but this plant starts contributing as soon as the foliage fills out in spring. The leaves create a deep ruby, plum, or purple-black mound that gives weight and contrast to a border. When the rosy-red flower clusters open in late summer, the plant shifts from foliage accent to pollinator magnet.

Native Range

Mojave Jewels™ Ruby is a cultivated ornamental selection, not a wild species. Its sedum relatives are associated with sunny, rocky, sharply drained habitats, which explains the plant’s tolerance of dry soil, heat, gravel, slopes, containers, and rock gardens. It should be used as a garden perennial rather than as a native restoration substitute.

Growth Habit and Size

This stonecrop forms a compact, clump-forming mound with upright stems. It typically grows about 12-15 inches tall and 18-20 inches wide. In lean soil and full sun, the habit stays tighter and the foliage color is richer. In fertile, wet, or shaded conditions, growth may become softer, greener, and more open.

Flowers and Seedheads

Flowers appear from late summer into early fall, usually in rounded clusters of small, star-shaped blooms. The color is often described as rosy-red, reddish-pink, deep pink, or dusty lavender-pink, depending on climate and bloom age. Bees and butterflies visit the flowers readily. After bloom, the seedheads can remain attractive, bringing structure to autumn and winter plantings.

Foliage and Seasonal Interest

The foliage is the feature that makes Ruby special. Thick, succulent leaves carry shades of ruby-purple, dark plum, burgundy, and purple-black. This creates months of interest before flowering begins. In a mixed border, the foliage reads almost like a dark neutral, adding depth beside pale gravel, chartreuse leaves, blue flowers, silver foliage, and warm late-summer blooms.

Season-by-Season Interest

In spring, new shoots emerge from the crown and quickly form a low, colorful mound. In summer, the foliage deepens and creates strong contrast in sunny borders. In late summer and early fall, rosy flower clusters bring nectar and warm color. In fall and early winter, the dried flower heads can remain standing for texture, especially near ornamental grasses and seed-bearing perennials.

Hardiness

Mojave Jewels™ Ruby is generally hardy in USDA Zones 3-9, with some trade sources listing a broader range. Winter survival depends heavily on drainage. Cold temperatures are usually less damaging than wet soil around the crown. In heavy clay, plant high, use raised beds, or improve drainage before planting.

Landscape Uses

• Front-of-border color: Use it where dark foliage can define sunny edges, paths, and patios.
• Container planting: Pair with drought-tolerant companions in pots with drainage holes.
• Rock garden: Its compact habit and succulent foliage suit gravelly, sharply drained sites.
• Pollinator garden: The late flowers help feed bees and butterflies when summer bloom is slowing.
• Modern landscapes: Combine with grasses, alliums, agave, yucca, or silver foliage for clean contrast.
• Cottage gardens: Soften the dark foliage with catmint, salvia, coneflower, coreopsis, lavender, and asters.

Wildlife and Ecological Value

The late-season flowers attract bees, butterflies, and other beneficial insects. In a pollinator border, Mojave Jewels™ Ruby helps extend nectar availability into the season when asters, goldenrods, agastache, and ornamental grasses are at their best.

Drought Tolerance

Once established, this sedum is drought-tolerant and well suited to low-water landscapes. Water deeply during the first season to establish roots, then reduce irrigation. In containers, water more often than in the ground, but always allow the potting mix to drain freely.

Deer and Rabbits

Mojave Jewels™ Ruby is generally resistant to deer and often avoided by rabbits. No plant is completely deer-proof, especially in high-pressure gardens, but thick succulent foliage is usually less appealing than soft, tender growth.

Toxicity

Sedums are grown as ornamental plants. Pets and children should not be encouraged to chew garden plants. Use gloves if you have sensitive skin, and contact a veterinarian or medical professional if accidental ingestion causes concern.

Invasiveness

Mojave Jewels™ Ruby is a clump-forming ornamental sedum and is not typically aggressive in gardens. It expands slowly with age but does not run like some groundcover stonecrops. Remove unwanted seedlings if they appear, and divide clumps when they become crowded.

How to Grow Sedum ‘Mojave Jewels Ruby’

Light

Full sun gives the best results. Aim for at least 6 hours of direct sun daily. Strong light deepens the ruby-purple foliage, encourages dense growth, improves flowering, and reduces the risk of floppy stems. In very hot climates, a little afternoon shade may be tolerated, but too much shade can make the plant greener and less compact.

Soil

Plant in average to lean, well-drained soil. Sandy, gravelly, rocky, and lightly amended soils are ideal. Heavy clay can work only if drainage is improved. Wet soil, especially in winter, is the main enemy. In containers, use a fast-draining potting mix and a pot with drainage holes.

Water

Water regularly after planting until roots are established. After that, water deeply during extended dry spells, then let the soil dry. Avoid frequent shallow watering, which encourages weak growth and may keep the crown too wet.

Feeding

Feed lightly, if at all. Sedums thrive in lean soil and can become soft, floppy, or overly lush with too much fertilizer. A thin layer of compost in spring is usually enough for garden plants.

Mulch

Gravel mulch is excellent because it suppresses weeds, reflects light, and keeps the crown dry. Organic mulch can be used sparingly, but keep it pulled back from the stems to prevent moisture buildup around the base of the plant.

Pruning and Maintenance

Mojave Jewels™ Ruby needs very little pruning during the growing season. Deadheading is optional. Many gardeners leave the flower heads standing after bloom because they add fall and winter texture. In late winter or early spring, cut old stems back close to the base before new shoots emerge.

If plants become crowded after several years, divide them in spring. Division refreshes vigor, improves airflow, and creates more plants for repeating through borders and containers.

Planting and Spacing

Plant in spring after the soil begins to warm, or in early fall where there is enough time for roots to settle before winter. Space plants about 18-24 inches apart. For the strongest design effect, plant in groups of three or five, or repeat single plants at regular intervals along a sunny edge.

In containers, use Mojave Jewels™ Ruby as a compact thriller or filler. It looks especially refined with silver foliage, blue grasses, trailing thyme, ornamental oregano, and other drought-tolerant plants. Avoid pairing it with moisture-loving annuals that need constant watering.

Propagation

Propagate by division in spring. Lift the clump, separate healthy rooted sections, and replant immediately. Stem cuttings can also root during active growth. Because Mojave Jewels™ Ruby is a named cultivar, vegetative propagation is the best way to maintain the same foliage color, flower color, size, and habit.

Common Problems, Pests, and Diseases

Root Rot

Root rot is the most serious problem and is usually caused by poorly drained soil or overwatering. Plant high, improve drainage, and avoid sites where water sits in winter.

Floppy Growth

Flopping usually means too much shade, rich soil, excess fertilizer, or frequent watering. Move the plant to full sun, avoid heavy feeding, and grow it in lean, well-drained soil.

Slugs and Snails

Slugs and snails may damage tender spring growth, especially in damp gardens. Improve airflow, remove hiding places, and protect young shoots if damage becomes noticeable.

Aphids

Aphids may appear on tender stems or flower buds. Rinse them off with water or encourage beneficial insects such as ladybugs, lacewings, and hoverflies.

Poor Flowering

Poor flowering is most often caused by insufficient sun, excessive fertility, or young plants still establishing. Give the plant full sun, lean soil, and time to mature.

Design Ideas With Mojave Jewels™ Ruby Stonecrop

Use Mojave Jewels™ Ruby wherever you need dark foliage, drought tolerance, and late-season flowers. It is especially effective beside pale gravel, stone edging, silver foliage, golden flowers, blue grasses, and lavender-blue flowers. The foliage acts like a dark velvet accent, making brighter companions look sharper and more sophisticated.

For a high-contrast border, combine it with lavender, catmint, blue fescue, salvia, and yellow coreopsis. For a late-season pollinator planting, pair it with coneflowers, agastache, asters, ornamental grasses, and goldenrod. For containers, use it with trailing thyme, small ornamental grasses, and silver-leaved drought-tolerant plants.

Companion Plants

These companion plants match Mojave Jewels™ Ruby because they prefer full sun, well-drained soil, and dry to medium moisture. They also share similar hardiness ranges and bring useful contrast in color, height, texture, bloom season, and pollinator value.

Lavandula angustifolia – English lavender adds fragrant silver foliage and purple flower spikes that echo sedum’s love of sun, drainage, and low water. https://www.gardenia.net/genus/lavandula-angustifolia-english-lavender

Nepeta racemosa ‘Walker’s Low’ – Catmint softens ruby foliage with lavender-blue flowers, aromatic leaves, and a long-blooming, pollinator-friendly habit. https://www.gardenia.net/plant/nepeta-racemosa-walkers-low

Salvia nemorosa ‘Caradonna’ – Violet-blue flowers and dark stems create vertical contrast with sedum’s rounded mound and late flower heads. https://www.gardenia.net/plant/salvia-nemorosa-caradonna-sage

Echinacea purpurea – Purple coneflower adds height, daisy-shaped flowers, strong pollinator appeal, and late-summer energy. https://www.gardenia.net/plant/echinacea-purpurea

Coreopsis verticillata ‘Moonbeam’ – Soft yellow flowers and fine foliage brighten the dark ruby-purple sedum leaves without overwhelming them. https://www.gardenia.net/plant/coreopsis-verticillata-moonbeam-tickseed

Festuca glauca ‘Elijah Blue’ – Blue fescue contributes cool blue-gray mounds, fine texture, and year-round structure in sunny, dry sites. https://www.gardenia.net/plant/festuca-glauca-blue-fescue-grass

Agastache foeniculum – Anise hyssop adds upright lavender-purple flowers, fragrant foliage, and outstanding bee appeal. https://www.gardenia.net/plant/agastache-foeniculum

Rudbeckia fulgida var. sullivantii ‘Goldsturm’ – Golden flowers make ruby foliage look deeper and extend the sunny display into late summer. https://www.gardenia.net/plant/rudbeckia-fulgida-var-sullivantii-goldsturm

Stachys byzantina – Lamb’s ear offers soft silver foliage that contrasts beautifully with the dark jewel-toned sedum leaves. https://www.gardenia.net/plant/stachys-byzantina-lambs-ears

Frequently Asked Questions

Updated: June 2026 • Reviewed by Gardenia Editors