Overview
Thelocactus phymatothelos is a clump forming cactus succulent in the genus Thelocactus, part of the Cactaceae family, with evergreen foliage. Thelocactus phymatothelos 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 phymatothelos is a clump-forming cultivar of the Thelocactus genus, a group of cacti known for their ribbed, spiny stems that are typically globular or slightly cylindrical. This evergreen succulent thrives in full sun and is best suited to sheltered, south- or west-facing positions. It prefers well-drained loam or sandy soils with a range of pH levels from acid to alkaline. Ideal for patio and container planting, it is hardy to UK zone H1c and produces prominent funnel-shaped flowers in spring and summer when grown in a conservatory or greenhouse.
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 phymatothelos 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 phymatothelos
- Propagation
- Seed, Offsets
- Pest resistance
- Mealybugs
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Thelocactus phymatothelos?
Thelocactus phymatothelos prefers full sun. It suits sheltered positions.
What soil does Thelocactus phymatothelos need?
Thelocactus phymatothelos grows best in loam and sand soil. It is happy in soil of any pH. Aim for soil that stays well-drained.
Is Thelocactus phymatothelos hardy in the UK?
Thelocactus phymatothelos 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 phymatothelos?
Seed, Offsets.
More in the Thelocactus genus
- Thelocactus bicolor subsp. heterochromus

- Thelocactus bicolor var. texensis

- Thelocactus bicolor var. tricolor

- Thelocactus conothelos

- Thelocactus matudae

- Thelocactus nidulans

- Thelocactus beguinii
- Thelocactus bicolor var. albiflora