Euphorbia polygona: How to Grow and Care for Snowflake

Euphorbia polygona Snowflake

Scientific name: Euphorbia polygona

Common name: Snowflake

The cacti has deep ribs and dark spines. The ribs can grow either straight or wavy. The flowers form in the late spring and summer.

Quick Look at Euphorbia polygona

  • Full sun to partial shade
  • Typical water needs for a succulent
  • Plant grows up to 24″ (61 cm) tall
    Plant grows up to 12″ (30.5 cm) wide
  • Zone 9a (Minimum 20° F | -6.7° C)
  • Not cold hardy
  • Propagation by offsets and seeds
  • Can be toxic to humans and animals
  • Winter Dormant

General Care for Euphorbia polygona ‘Snowflake’

The snowflake cacti are great for collectors who want to introduce contrasting colors into their gardens. Care should be taken when handling it, as it can cause irritation.


The watering needs for a succulents is typical. The “soak and dry” method will allow the soil to dry out completely between waterings.

Where to Plant

If you live in a zone that gets colder than 20 F, it is best to plant this succulent in a container that can be brought indoors. It does well in both full and partial sun.

How to Propagate Euphorbia polygona ‘Snowflake’

Snowflake is a propagator, growing many offsets. Care should be used when removing offsets. Follow the directions in the post to learn how to handle a cactus.

To remove a clump, you will need nitrile dipped gloves, silicone tongs, and a sharp knife.

Pull one of the cylindrical stems away from the main cluster using the tongs. If you can’t break it off without pulling up the rest of the plant, use the knife to cut through the stem.

Allow the end of the stem to be calloused for a few days before placing it in well-draining soil.


You can collect seeds from the fruit of Snowflake. If you live above 9a, you can grow Euphorbia seeds outdoors. If you live in a cooler area, you can sow indoors under a grow light or on a seed mat.


  1. Euphorbia polygona (Snowflake) – Wikipedia

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