🐕 Succulent Base

Echinopsis eyriesii

Also known as: Sea urchin cactus

The sea urchin cactus: fast-clustering ribbed bodies that produce huge white trumpet flowers on summer nights (wilt by morning). It belongs to the Echinopsis genus, comes from Brazil/Uruguay/Argentina, stays around Clumps 20–40 cm, and tolerates USDA 9b–11; dry cold to -4 °C. Individual plants vary, so treat this as a general guide rather than a guarantee.

Key facts

  • Genus: Echinopsis
  • Origin: Brazil/Uruguay/Argentina
  • Mature size: Clumps 20–40 cm
  • Hardiness: USDA 9b–11; dry cold to -4 °C
  • Toxicity: Spines sharp

Succulent at a glance

Genus
Echinopsis
Origin
Brazil/Uruguay/Argentina
Mature size
Clumps 20–40 cm
Growth habit
Fast-clustering ribbed columnar bodies
Leaf colour
Deep green ribbed bodies with white-felted areoles
Flower colour
Large white night-blooming trumpet flowers
Hardiness
USDA 9b–11; dry cold to -4 °C
Toxicity
Spines sharp
Other names
Sea urchin cactus

About the Echinopsis eyriesii

The sea urchin cactus: fast-clustering ribbed bodies that produce huge white trumpet flowers on summer nights (wilt by morning). One of the easiest and most generous cacti.

Care and cultivation

Grow in a fast-draining gritty mix with bright light and morning sun. Water deeply only when bone dry. Remove spent stalks and dried lower leaves; handle leaves by the stem to protect the farina. Light: Bright light with morning sun; colour deepens with light. Water: Soak-and-dry; every 10–14 days in growth. Soil: Fast-draining cactus mix, 50% grit.

Description

Echinopsis eyriesii is a Echinopsis succulent from Brazil/Uruguay/Argentina. The sea urchin cactus: fast-clustering ribbed bodies that produce huge white trumpet flowers on summer nights (wilt by morning). One of the easiest and most generous cacti.

Identification

Key identification features: Deep green ribbed bodies with white-felted areoles leaves in a Fast-clustering ribbed columnar bodies form, reaching Clumps 20–40 cm. Also known as Sea urchin cactus. Nickname: 'Sea urchin cactus'. Nickname: 'Sea urchin cactus'.

Adding a Echinopsis eyriesii to your collection? Buy from reputable nurseries that label plants with accurate botanical names, and quarantine new plants for a couple of weeks before placing them near existing succulents to avoid spreading pests like mealybugs.

Frequently asked questions

How often should I water Echinopsis eyriesii?

Soak-and-dry; every 10–14 days in growth. Let the soil dry completely between waterings and reduce water in winter.

Is Echinopsis eyriesii toxic to pets?

Spines sharp. Considered safe around pets.

Related succulents

Succulent information on this page is based on the Wikipedia article on the Echinopsis eyriesii, supplemented with additional research. Reviewed for accuracy.