Skip to Content Skip to Navigation
Menu

Diamond Mountain® Euphorbia hybrid

Exposure
  • Part Sun to Sun

The optimum amount of sun or shade each plant needs to thrive: Full Sun (6+ hours), Part Sun (4-6 hours), Full Shade (up to 4 hours).

Flower Season
  • Spring
  • Summer
  • Fall
Mature Size
36" 36"
Height
24 - 36"
Spread
24 - 36"
  • Details

    Features

    Don't JUST keep up with the Joneses. LEAPFROG them.

    Heat- and drought-tolerant plants; clouds of airy white flowers all season; low maintenance.  Much larger plants than Diamond Frost® with a great landscape presence and perfect for mixing with other vigorous plants.

    Award Winner
    Continuous Bloom or Rebloomer
    Long Blooming
    Heat Tolerant
    Deadheading Not Necessary
    Drought Tolerant
    Resists: 
    Deer

    Characteristics

    Plant Type: 
    Annual
    Height Category: 
    Medium
    Garden Height: 
    24 - 36 Inches
    Spacing: 
    12 - 18 Inches
    Spread: 
    24 - 36 Inches
    Flower Colors: 
    White
    Flower Shade: 
    White
    Foliage Colors: 
    Green
    Foliage Shade: 
    Green
    Habit: 
    Mounded
    Container Role: 
    Filler

    Plant Needs

    Light Requirement: 
    Part Sun to Sun
    Maintenance Category: 
    Easy
    Bloom Time: 
    Planting To Frost
    Hardiness Zones: 
    10a, 10b, 11a, 11b
    Water Category: 
    Average
    Uses: 
    Border Plant
    Uses: 
    Container
    Uses: 
    Landscape
    Uses: 
    Mass Planting
    Uses Notes: 

    Plant in landscapes, containers or large combinations that include other very vigorous plants.

    Maintenance Notes: 

    Diamond Mountain might look delicate and frilly, but nothing could be further from the truth. Diamond Mountain is actually pretty much tough as nails. She has performed well from North to South and coast to coast. While she does best in sun or part sun conditions, she does surprisingly well in shady conditions also. As you might suspect she is great in mixed containers and containers by herself, but don't discount her excellent performance when planted in the landscape. She needs little to no supplemental water and is extremely heat tolerant. She doesn't need to be deadheaded and shouldn't need much in the way of fertilizer either - she's a very self-sufficient gal. While you shouldn't need to trim her back, you can trim her back at anytime and she will just keep doing her thing.

    Self-cleaning, no deadheading necessary.

    Some shedding of flowers and leaves may occur indoors depending on light levels and watering.

    Plants in the spurge family often will bleed a milky, white sap if cut or wounded. This sap is a form of latex. Most people will have little or no reaction due to sap exposure from the euphorbia that Proven Winners sells. However, people with sensitive skin or latex allergies should be cautious when handling euphorbia. Poinsettias are in this same family. If you have ever experienced a skin irritation due to contact with poinsettias you should be cautious with all euphorbia.

    An application of fertilizer or compost on garden beds and regular fertilization of plants in pots will help ensure the best possible performance.

    Diamond Mountain® Euphorbia hybrid USPPAF, Can PBRAF
  • 2 Reviews

    5
    1
    4
    1
    3
    2
    1
    • Diamond Mountain Euphorbia has been nothing short of spectacular this year in two of my large containers. I expected a lot from them and they did not disappoint! It is October 4th in NJ and they are still going strong. Visitors to my home stop in their tracks when they see this plant!

      Kathleen Towle
      , New Jersey
      , United States
      , 43 weeks ago
      Above Average Superior performance, among my favorites, would recommend to others.
    • Such a nice filler in my hanging baskets! The honeybees love it too

      Jennifer Winship
      , British Columbia
      , Canada
      , 51 weeks ago
      Outstanding My favorite plant, I recommend to others all the time and explain the reasons why I like it so much.
  • 24 Awards

    Award Year Award Plant Trial
    2018 Top Performer Colorado State University
    2018 Top Performer Penn State
    2018 Top Performer Ohio State University Extension - Springfield
    2018 Top Performer Jardin Daniel A. Seguin
    2018 Top Performer Oklahoma State University Botanical Gardens
    2018 Top Performer Mississippi State University - Crystal Springs
    2018 Top 10 North Carolina State, JC Raulston Arboretum
    2018 Leader of the Pack - Early Season North Carolina State, JC Raulston Arboretum
    2018 Perfect Score All Season University of Minnesota - Morris
    2018 Top Performer Cornell University
  • 6 Recipes

Back to Top

Find plants you love and create idea boards for all your projects.

To create an idea board, sign in or create an account.