General Plant Information (Edit)
Plant Habit: Shrub
Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 10a -1.1 °C (30 °F) to +1.7 °C (35 °F)
Plant Height: 2-5 feet
Plant Spread: 2-3 feet
Leaves: Evergreen
Broadleaf
Flowers: Showy
Other: In the genus Euphorbia, the flowers are reduced in size and aggregated into a cluster of flowers called a cyathium (plural cyathia). This feature is present in every species of the genus Euphorbia but nowhere else in the plant kingdom.
Flower Color: Yellow
Other: Attractive yellow bracts surrounding tiny yellow flowers.
Bloom Size: Under 1"
Flower Time: Late winter or early spring
Spring
Late spring or early summer
Summer
Winter
Suitable Locations: Xeriscapic
Houseplant
Uses: Windbreak or Hedge
Dynamic Accumulator: B (Boron)
Resistances: Humidity tolerant
Drought tolerant
Toxicity: Other: All members of the genus Euphorbia produce a milky sap called latex that is toxic and can range from a mild irritant to very poisonous.
Propagation: Other methods: Cuttings: Stem
Containers: Needs excellent drainage in pots
Miscellaneous: Tolerates poor soil
With thorns/spines/prickles/teeth

Image
Common names
  • Crown of Thorns
  • Euphorbia

Photo Gallery
Location: Ontario, Canada
Date: 2022-12-10
Location: Ontario, Canada
Date: 2023-04-10

« Add a new plant to the database

» Search the Euphorbias Database: by characteristics or by cultivar name

« See the general plant entry for Euphorbias (Euphorbia)

« The Euphorbias Database Front Page

« The Plants Database Front Page

Today's site banner is by Murky and is called "Coneflower and Visitor"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.