Euphorbia – Diamond Mountain®

Garden Height
24 - 36
Spacing
12 - 18
Spread
24 - 36
Habit
Mounded
Container Role
Filler
Flower Size
Medium
Flower Colors
White
Light Code
YO
Light Level
Part Sun to Sun
Proven Winners

Features:

  • Continuous Re-Bloom
  • Dead-Heading Not Necessary
  • Drought Tolerant
  • Heat Tolerant
  • Long Blooming

Resists: Deer

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.

Uses Notes:

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

Maintenance Category: Easy

Water Category: Average

Bloom Time: Planting to Frost

Hardiness Zones: 11b

Flower Form: Mass Planting

pH: B - pH 5.8 - 6.2

EC (2:1 Extraction Method): 0.6

Fertilization: 150 - 200

Light Requirements: High

Water Requirements: Moderate to Moist

Rooting Out Temperature: 65 - 72° Fahrenheit

Growing On Temperature: 65 - 72° Fahrenheit

Holding Temperature: 50 - 60° Fahrenheit

Planting and Timing Information:

Early Spring to Summer Finish. Standard PPP.

Finishing Times [weeks]:

4-5" and Quart Pot: 4-6
6" and Gallon Pot: 5-7
7-9" Pot: 7-9
10-12" and Two Gallon Pot: 10-12

Pinching and Growth Regulators:

No Pinch necessary but plants can be pinched to shape. A very soft pinch or a shearing off of just the growth tips will encourage fuller growth. A hard pinch can stall growth. Diamond Frost and Diamond Delight are very sensitive to Florel. Florel will cause defoliation.

Pest and Disease Management:

General pest and disease practices. Good sanitation practices include keeping greenhouses clean at all times, eliminating weeds and debris, disinfecting equipment in greenhouses as often as possible and keeping hose ends off of the greenhouse floor. Good water management practices are critical for good, healthy plant growth.

Grower Tips:

-High light is required in production -Preventive fungicides are recommended at transplant -Warm and slightly dry conditions after transplanting speeds root in and growth -Diamond Frost and Diamond Delight can have an adverse reaction to shipping in a box. Even plants that look bad will rebound in a short time given appropriate conditions. Severe dry down can cause foliage to drop, however, the plant will recover. -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. -Diamond Delight is about 25% shorter than Diamond Frost. Diamond Delight forms a dense, flowering canopy which does not work as a filler in combination in the same way that Diamond Frost does. Diamond Delight can be great in combinations, but it will create a mass of flowers, rather than intermingling. Matching it with other vigor 2 rated plants is helpful for success in combinations. It makes a great Grande or Classic (4.5") finish pot. -Diamond Delight is the most vigorous double flowered Euhporbia hybrid on the market. It is extremely heat, humidity and drought tolerant, with extra petals to create more color impact.

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