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Alworthia Black Gem in the GardenTags plant encyclopedia

x Alworthia 'Black Gem'

 

Alworthia 'Black Gem'

Bigeneric hybrid of aloe speciosa and haworthia cymbiformis. Forms a large clump with many tiny offsets. Its fleshy leaves can range from a deep green, bronze, purple or red colour, depending on the amount of sunlight the plant receives. Can be susceptible to aphids.

 
plant Features
  • Alworthia Black Gem likes partial shade

    Partial shade

  • Alworthia Black Gem likes very little water

    Very little water

  • Alworthia Black Gem is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Alworthia Black Gem likes free draining

    Free draining

 
plant information

Common name

Alworthia 'Black Gem'

Latin name

x Alworthia 'Black Gem'

type

Succulent

family

Asphodelaceae

ph

5.0 - 7.0 Acid - Neutral

  • Light

    Alworthia Black Gem likes partial shade

    Partial shade

  • Frost

    Alworthia Black Gem is frost hardy: 23f (-5°c)

    Frost Hardy: 23F (-5°C)

  • Soil

    Alworthia Black Gem likes free draining

    Free draining

  • Water

    Alworthia Black Gem likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Alworthia Black Gem is 0.35meters x 0.25meters 0.35 M 0.25 M

x Alworthia 'Black Gem'

Bigeneric hybrid of aloe speciosa and haworthia cymbiformis. Forms a large clump with many tiny offsets. Its fleshy leaves can range from a deep green, bronze, purple or red colour, depending on the amount of sunlight the plant receives. Can be susceptible to aphids.


Flowering Season

From Mid Summer TO Mid Summer

Haworthia and Haworthiopsis will produce flowers, usually a few weeks after the "longest day" of the year, i.e. in Summer. However the flowers aren't very exciting, although because Haworthia and Haworthiopsis are very slow and compact plant not much happens visually during the year therefore the flowering period can be a welcome treat to show that your plant is actually "alive".

 

Planting Young Plants

From Early Spring TO Early Spring

When you re-pot your Haworthia or Haworthiopsis you can separate the offsets from the parent. Use a sharp knife and cut as close to the parent plant as possible, ensure the offset has some roots. Wait a day for the offset to dry slightly then pot up in a small container using a standard potting or cactus compost mix. Water and keep warm.

 
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