Overview
Thelocactus nidulans is a clump forming cactus succulent in the genus Thelocactus, part of the Cactaceae family, with evergreen foliage. Thelocactus nidulans grows best in full sun, and tolerates loam and sand soils and any pH. Its UK hardiness is rated H1c. Suggested uses include patio and container plants.
About
Thelocactus nidulans is a clump-forming cultivar of the Thelocactus genus, known for its ribbed, spiny stems that are typically globular or slightly cylindrical. This evergreen cactus produces prominent funnel-shaped flowers in summer, making it an attractive choice for patio and container planting. It thrives in full sun with well-drained, gritty soil, and prefers a sheltered position facing south or west. Suitable for cultivation in conservatories or greenhouses, it requires propagation by seed or offsets and is hardy to UK zone H1c.
Growing conditions
Best soil and position for Thelocactus
- Sunlight
- Full sun
- Soil type
- Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H1c
Plant details
Thelocactus nidulans size, habit and characteristics
- Plant type
- Cactus Succulent, Houseplants, Conservatory Greenhouse
- Habit
- Clump forming
- Foliage
- Evergreen
- Suggested uses
- Patio and container plants
Care notes
Pruning and caring for Thelocactus nidulans
- Propagation
- Seed, Offsets
- Pest resistance
- Mealybugs
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Thelocactus nidulans?
Thelocactus nidulans prefers full sun. It suits sheltered positions.
What soil does Thelocactus nidulans need?
Thelocactus nidulans grows best in loam and sand soil. It is happy in soil of any pH. Aim for soil that stays well-drained.
Is Thelocactus nidulans hardy in the UK?
Thelocactus nidulans has an RHS hardiness rating of H1c, meaning it needs a warm, frost-free position of 5–10°C and is best grown under glass in the UK.
How do I propagate Thelocactus nidulans?
Seed, Offsets.
More in the Thelocactus genus
- Thelocactus bicolor subsp. heterochromus

- Thelocactus bicolor var. texensis

- Thelocactus bicolor var. tricolor

- Thelocactus conothelos

- Thelocactus matudae

- Thelocactus phymatothelos

- Thelocactus beguinii
- Thelocactus bicolor var. albiflora