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Euphorbia Pseudocactus Care

Euphorbia pseudocactus is a hardy succulent-like annual shrub that is mainly grown in the warmer, drier regions of the United States – including New Mexico and Arizona. The plant generally reaches heights of 2 to 3 feet and spans anywhere from 4 to 6 feet wide. It also features green spiked leaves that form “V” shapes. Provide your Euphorbia pseudocactus with the proper environment, water and substrate to ensure it thrives.

Things You'll Need

  • Well-drained soil
  • Peat moss
  • Pumice or clay
  • Pot with drainage holes
  • High-pressure sodium vapor or mercury vapor bulbs
  • Low-nitrogen fertilizer
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    • 1

      Provide your Euphorbia pseudocactus with a loamy mixture of well-drained soil, peat moss and pumice or clay. This ensures that the plant remains well-drained, as it’s potentially detrimental for the Euphorbia pseudocactus to sit in standing water. Choose a pot that features drainage holes, to prevent water pooling around the root system.

    • 2

      Display the annual in an area that receives filtered sunlight. An ideal spot provides mainly full sun that is only slightly shaded during the spring, summer and fall. According to the International Euphorbia Society, your Euphorbia pseudocactus also requires at least 20 hours of artificial light during the winter months to mimic the plant’s natural environment. The International Euphorbia Society suggests using high-pressure sodium vapor bulbs or mercury vapor bulbs to provide this artificial light.

    • 3

      Provide a Euphorbia pseudocactus a healthy drink of water at least once weekly during the growing season, which is between March and September. Slowly pour the water into the pot; once it begins to drain from the bottom, stop watering. The plant only requires a light spritzing of water during the winter, and the soil should remain relatively dry throughout this dormant period. According to the International Euphorbia Society, the plant should be watered at night during the summer months, as the absence of direct sunlight prevents the water from evaporating too quickly.

    • 4

      Fertilize the plant with a low-nitrogen mixture during the growing season. Dilute the fertilizer with water and apply according to the package directions.