How to Grow Giant Stapelia
Wikimedia Commons
Giant Stapelia
Stapelia gigantea
succulentStapelia gigantea is a low-growing succulent native to South Africa, renowned for producing the largest flowers in the Stapelia genus—blooms can reach 12 inches (30 cm) in diameter. The star-shaped flowers are pale yellow with deep red or maroon bands and are famously known for their putrid, carrion-like odor that attracts flies for pollination. The plant itself is a spineless, leafless succulent with fleshy, four-angled green stems that form dense clusters.
When should you plant Giant Stapelia in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Giant Stapelia timeline · Pittsburgh, PA (Zone 6b)
-
Plant Giant Stapelia
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Giant Stapelia
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Giant Stapelia dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 10-11; grow indoors or in containers in cooler climates
Sign up free to see if Giant Stapelia grows in your zone — and get a personalized planting timeline.
Get my Giant Stapelia timeline →Growth Stages
Establishment
4-8 weeksSmall rooted cuttings or newly potted young plants with minimal stem growth
Use very gritty soil; water lightly once; hold off watering for 2-3 weeks to encourage root development. Place in bright, indirect light.
Vegetative Growth
6-12 monthsStems expand and multiply, creating low mounding clusters. Green, four-angled stems become more prominent.
Maintain warm temperatures (65-80°F ideally). Water only when soil is bone-dry. Provide bright light to prevent stretching. Fertilize sparingly (diluted succulent fertilizer monthly in spring-summer).
Bud Formation
2-4 weeksSmall red or purple buds emerge from the sides of mature stems, typically in late summer to early fall
Maintain cooler temperatures (60-70°F) to trigger flowering. Reduce watering slightly. Ensure excellent air circulation to prevent fungal issues. Do not move the plant once buds form.
Flowering
2-4 weeks (blooms open sequentially)Large, star-shaped flowers unfold with pale yellow to tan background and deep maroon bands. Distinctive putrid odor attracts pollinators.
Do not move or disturb the plant. Provide bright light. Maintain moderate humidity (50-60%) if possible to help flies detect scent. Flowers typically last 2-3 days.
Post-Flowering & Dormancy
3-4 monthsFlowers fade and fade to brown; seed pods may develop if pollinated. Stems enter winter dormancy.
Reduce watering significantly; aim for barely any moisture in winter months (November-February). Cool temps (50-60°F) support dormancy and next year's flowering. Resume normal watering in spring.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Isolate plant; spray with isopropyl alcohol on a cotton swab or use neem oil. Repeat every 10-14 days until clear. Improve air circulation.
-
Remove manually with a soft brush or alcohol-soaked cotton swab. Apply horticultural oil or insecticidal soap. Monitor closely and repeat treatments.
-
This is not a pest but a disease from overwatering. Repot in fresh dry soil, trim away blackened roots. Improve drainage; reduce watering frequency. Use well-draining mix with added perlite.
-
Allow soil surface to dry completely between waterings (natural for this plant). Use sticky traps near soil; apply insecticide if severe.
Uses
Exotic houseplant & conversation starter
OrnamentalStapelia gigantea is prized by succulent collectors and horticulturists for its extraordinary, unusual flowers and memorable carrion-scent. The giant star-shaped blooms are visually stunning and are often considered one of the most remarkable flowers in the plant kingdom. [source]
Pollinator attraction & biodiversity
WildlifeThe putrid odor mimics rotting flesh, attracting carrion flies and blow flies that serve as pollinators. Growing Stapelia gigantea indoors or outdoors supports these insect populations and demonstrates fascinating plant-pollinator co-evolution. [source]
Propagation & plant sharing
CraftStapelia gigantea is easily propagated from stem cuttings, making it popular among succulent enthusiasts for sharing and trading. Cuttings root readily in well-draining soil within 2-3 weeks. [source]
Low-maintenance houseplant care
HouseholdOnce established, Stapelia gigantea requires minimal water and no fertilizer beyond sparse feeding, making it ideal for neglect-tolerant indoor gardening and office environments. [source]
Plant biology & evolution teaching
EducationalStapelia gigantea is an excellent subject for studying plant-pollinator relationships, carrion mimicry strategies, and xerophytic (drought-adapted) plant morphology in educational and botanical settings. [source]
Harvest Tips
Stapelia gigantea is not harvested for food or material, but rather enjoyed for its spectacular and aromatic flowers. Flowers bloom sequentially and typically last 1-3 days each. For the full experience, observe blooms in early morning or evening when the odor is typically strongest and pollinators are active. Seed pods develop after successful pollination (rare indoors); allow them to mature and dry on the plant before collecting seeds if desired.
Fun Facts
- 🌱 Stapelia gigantea produces some of the largest flowers of any succulent species—blooms can exceed 12 inches (30 cm) in diameter and weigh up to 1 pound, yet the plant itself remains low and compact.
- 🌱 The smell has been compared to decomposing flesh or feces; it is caused by volatile organic compounds similar to those emitted by rotting meat, which perfectly attracts flies that are the plant's natural pollinators.
- 🌱 In its native South African habitat, Stapelia gigantea blooms typically in late summer to fall, and the flowers open at dawn and close by evening, creating a daily cycle. Indoor specimens often have irregular blooming patterns due to different light and temperature conditions.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Giant Stapelia planting timeline
Tell us your zip code and we'll calculate exactly when to start Giant Stapelia seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Giant Stapelia timeline →