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Euphorbia trigona ‘Rubra’ – Red African Milk Tree

Euphorbia trigona ‘Rubra’ – Red African Milk Tree

Evergreen · Full Sun / Part Shade

Mature size: 2m–4m high × 1m–2m wide

  • Evergreen
  • Full Sun / Part Shade
  • Mature height2m–4m
  • Mature width1m–2m
  • Frost Sensitive
  • Good in pots
  • Flowers

Rich burgundy-red stems and foliage create dramatic year-round colour and architectural structure.

Regular price $650.00
Sale price $650.00 Regular price
Tax included. Shipping calculated at checkout.
Pot size
Available batches
Size: 30cm/33cm
Current height guide
Please enquire
Pot size
30cm/33cm

Approximate only. Minimum height important? Confirm with us.

Height guide & disclaimer

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you must confirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Quantity

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Size / batchEachQuantity
30cm/33cmApprox. height: Enquire for current heights$650.00

Height guide & disclaimer

Height guide disclaimer: Height ranges are approximate only. As living products, plant heights naturally vary between individual plants, batches, and seasons. No guarantee is given that supplied plants will fall within the stated range. If minimum heights are required, you must confirm current batch heights with Evergreen Trees Direct prior to purchase. Variation in height is normal and is not grounds for return, refund, replacement, or compensation.

Subtotal before discounts & delivery$0.00

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    About Euphorbia trigona ‘Rubra’

    Euphorbia trigona 'Rubra' is a succulent shrub from central Africa, sold here as the Red African Milk Tree. It grows as a cluster of upright, three sided stems with ridged spined edges and small teardrop leaves along the margins. New growth flushes deep burgundy, which is where the colour in the name comes from.

    It wants bright light, a gritty free draining mix and very little water, particularly over the colder months. Growth runs around 20 to 60 centimetres a year in warm conditions. It suits frost free coastal, tropical and subtropical gardens, and is best kept in a pot elsewhere so it can be moved under cover.

    Most buyers grow it as an indoor specimen, a verandah plant or part of a courtyard bed with other succulents and gravel. The vertical form reads well against a plain rendered wall. Once potted correctly it asks for almost nothing, which makes it a straightforward choice for low water planting.

    Frequently Asked Questions

    About Red African Milk Tree

    What is a Red African Milk Tree?

    Red African Milk Tree is the trade name for Euphorbia trigona 'Rubra', a succulent shrub from central Africa. It grows as a cluster of upright three sided stems with ridged, spined edges and small leaves along the margins. New growth carries a deep burgundy flush, and older stems hold a dark green and red pattern.

    How big does Euphorbia trigona 'Rubra' grow?

    In a warm frost free garden bed it can reach roughly 2 to 3 metres over many years, spreading slowly as new stems branch from the base. Grown in a pot it usually settles between 1 and 2 metres, which is the size most buyers keep it at. Height is easily controlled by cutting stems back.

    How fast does it grow?

    It adds about 20 to 60 centimetres a year in warm, bright conditions, slowing almost to a stop through cold or dark periods. Growth is faster in the ground than in a container, and faster again with warmth and strong light. Overwatering does not speed it up, it simply causes the stems to rot.

    Does it need sun or shade?

    Bright light is essential. Outdoors it wants full sun to very light shade, and indoors it needs the brightest window in the house or it stretches and loses colour. Move plants into strong sun gradually over a week or two, because stems that have been shaded will scorch if they are shifted suddenly.

    Is it frost tolerant?

    No. Euphorbia trigona is a tropical succulent and frost damages the stems, which turn soft and brown before collapsing. Grow it outdoors only in frost free coastal, tropical and subtropical areas. In cooler districts keep it in a pot that can be moved to a sheltered verandah or indoors over winter.

    Is the sap harmful to people and pets?

    Yes. Like all euphorbias it bleeds a milky white latex when cut or broken, and that sap irritates skin and is dangerous in the eyes. Wear gloves and eye protection when pruning, wash off any contact promptly, and keep the plant away from small children and animals inclined to chew foliage.

    How do I care for a Red African Milk Tree?

    Plant it in a gritty free draining succulent mix, water only when the mix has dried right through, and cut watering back hard over winter. It needs no more than a light feed in spring. Prune with gloves on to remove or shorten stems, and let the cuts dry before potting any pieces on.

    Key growing information
    Mature height2m to 4m
    Mature width1m to 2m
    PositionFull Sun / Part Shade
    Growth per year20cm to 60cm per year under suitable conditions
    FrostFrost Sensitive
    FoliageEvergreen (foliage year round)
    FormColumnar · Upright
    UsesFeature Tree · Plant in Pots (or) Suitable for Pots · Shrubs
    Foliage

    Evergreen (foliage year round)

    Position
    • Full Sun
    • Part Shade
    Form
    • Columnar
    • Upright
    Use
    • Feature Tree
    • Plant in Pots (or) Suitable for Pots
    • Shrubs
    Mature height
    2m to 4m
    Mature width
    1m to 2m

    Planting Information

    How To Plant Your Euphorbia trigona ‘Rubra’ – Red African Milk Tree

    1. Plant in a bright, sunny position.
    2. Ensure excellent drainage before planting.
    3. Water regularly during establishment.
    4. Allow soil to dry between watering events.
    5. Avoid waterlogged planting locations.

    Recommended Planting Spacing For Your Euphorbia trigona ‘Rubra’ – Red African Milk Tree

    Feature Planting: 1.5m - 2m
    Mass Planting: 1m - 1.5m

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is expected to grow 20cm to 60cm per year under suitable conditions.

    • Medium Growth Rate
    • Fast Growth Rate

    Long Term Care For Your Euphorbia trigona ‘Rubra’ – Red African Milk Tree

    • Water sparingly once established.
    • Remove damaged growth if required.
    • Avoid excessive fertiliser applications.
    • Maintain free-draining soil conditions.

    Planting Your Euphorbia trigona ‘Rubra’ – Red African Milk Tree in Different Soil

    • Sandy soils: Provide ideal drainage and encourage healthy root development.
    • Sandy loam soils: Offer balanced drainage and moisture retention.
    • Gravelly soils: Promote long-term root health and reduce excess moisture.

    Uses in my Garden

    Uses in my Garden

    • Feature Tree
    • Plant in Pots (or) Suitable for Pots
    • Shrubs

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree works in an:

    • Contemporary / Architectural Garden – striking forms for bold design statements.
    • Mediterranean Style Garden – timeless courtyard look with stone, pots, and bold greenery.

    Is Euphorbia trigona ‘Rubra’ – Red African Milk Tree Evergreen or Deciduous?

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is an Evergreen (foliage year round) Tree

    Mature Height & Width

    Mature Height: 2m to 4m

    Mature Width: 1m to 2m

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is expected to grow 20cm to 60cm per year under suitable conditions.

    Growth Rate of Euphorbia trigona ‘Rubra’ – Red African Milk Tree

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is expected to grow 20cm to 60cm per year under suitable conditions.

    They are considered to have a:

    • Medium Growth Rate
    • Fast Growth Rate

    Frost Tolerance & Ideal Climate to plant Euphorbia trigona ‘Rubra’ – Red African Milk Tree

    Is Euphorbia trigona ‘Rubra’ – Red African Milk Tree frost tolerant?

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is Frost Sensitive – May suffer damage from frost, best in frost-free or protected spots.

    Does Euphorbia trigona ‘Rubra’ – Red African Milk Tree Flower?

    Euphorbia trigona ‘Rubra’ produces small yellow-green flower structures along mature stems during warmer months. While the blooms are relatively inconspicuous, the plant is primarily valued for its striking burgundy-red stems and foliage that create bold year-round architectural interest.

    Does Euphorbia trigona ‘Rubra’ – Red African Milk Tree flower?

    • Yes - Flowers

    Flowering Period:

    • Spring
    • Summer

    Flower Type:

    • Not Applicable

    Flower Colour:

    Yellow

    Is Euphorbia trigona ‘Rubra’ – Red African Milk Tree an Australian Native Tree?

    No

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree is Native to Cultivar of Euphorbia trigona, a species native to Central Africa.

    What is the Wildlife Value of Euphorbia trigona ‘Rubra’ – Red African Milk Tree ?

    Its small seasonal flowers may attract bees and other beneficial pollinators during the flowering period, supporting biodiversity within dry-climate and ornamental landscapes. The upright branching structure can also provide sheltered microhabitats for beneficial insects in suitable garden settings.

    How much Sunlight does Euphorbia trigona ‘Rubra’ – Red African Milk Tree need?

    Euphorbia trigona ‘Rubra’ – Red African Milk Tree will thrive best in:

    • Full Sun
    • Part Shade

    Preferred Soil?

    Euphorbia trigona ‘Rubra’ performs best in free-draining sandy or loam soils with a neutral to slightly alkaline pH. It will also tolerate poor soils, rocky sites and container growing provided drainage remains excellent. Avoid heavy clay or persistently wet conditions, as excess moisture can lead to root and stem problems. Allow the soil to dry thoroughly between watering once established to maintain healthy growth, stem colour and long-term vigour.

    Is Euphorbia trigona ‘Rubra’ – Red African Milk Tree Drought Tolerant?

    Is Euphorbia trigona ‘Rubra’ – Red African Milk Tree Drought tolerant?

    As a young plant it benefits from occasional watering to establish a healthy root system, particularly during extended dry periods. Once established, Red African Milk Tree shows exceptional drought tolerance and performs reliably through prolonged dry conditions with little to no supplementary watering.

    Frequently Asked Questions

    Frequently Asked Questions

    Q: What gives Euphorbia trigona ‘Rubra’ its colour?
    A: The stems and foliage naturally develop deep burgundy-red tones, especially when grown in bright sunlight.

    Q: Is it drought tolerant?
    A: Yes, once established it develops excellent drought tolerance and is ideal for low-water landscapes.

    Q: Can it be grown in pots?
    A: Yes, it performs exceptionally well in decorative containers with excellent drainage.

    Q: Is it a cactus?
    A: No, although it resembles a cactus, it belongs to the Euphorbia genus and is botanically different from true cacti.

    Compare sizes side by side

    30cm/33cm

    Enquire for current heights

    Heights are approximate and vary between individual trees.

    Euphorbia trigona ‘Rubra’ is loved for its Rich burgundy-red stems and foliage create dramatic year-round colour and architectural structure.

    We take pride in supplying A+ grade advanced trees. When stock at our farm is not yet ready, we work with our trusted trade suppliers to source the best available trees for your garden.

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