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Products > Synadenium compactum var. rubrum
 
Synadenium compactum var. rubrum - African Milk Bush

San Marcos Growers has permanently closed as a business. This is an archived page preserved for informational use.  
Image of Synadenium compactum var. rubrum
[2nd Image]
Habit and Cultural Information
Category: Shrub
Family: Euphorbiaceae (Spurges)
Origin: Africa, East (Africa)
Red/Purple Foliage: Yes
Flower Color: Red
Bloomtime: Summer/Fall
Synonyms: [S. grantii 'Rubra', Euphorbia bicompacta]
Height: 8-12 feet
Width: 6-8 feet
Exposure: Sun or Shade
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 25-30° F
May be Poisonous  (More Info): Yes
Synadenium compactum var. rubrum (African Milk Bush) - A upright semi-evergreen to deciduous (in California) shrub that grows typically to 6 to 15 feet tall but in habitat to over 20 feet. It has thick 5-8-inch-long leaves that can be entirely red, entirely green, or a combination of both on the upper surface and purple-red beneath. It occasionally blooms with minute flowers with red bracts.

Plant in full sun to light shade. Give occasional water to little irrigation. It is frost tender, but leaves re-emerge without stem damage after mild frosts and the plant can resprout from base if top is frozen at short duration temperatures much below 25 F. As with most plants in the Euphorbia family the sap is toxic and this plant produces a copious amount of sap or "milk" and care needs to be taken when cutting or working with the plant so that it not be allowed to get in the eyes. The latex is known to be oil soluble so if it gets on your skin, it can be removed with any cooking oil, much as it done with beach tar.

African Milk Bush is native to rocky slopes in open bushland in the Kaivasha District in Kenya. It is also known as the "Purple Leaf Brown Jug Plant" or "Red Milk Bush" and is often confused in horticulture with the larger and greener Synadenium grantii that also grows in Kenya but also in Uganda and further south. In the most recent taxonomic treatment Synadenium compactum var. rubrum has be renamed Euphorbia bicompacta var. rubra (S.Carter) Bruyns and Synadenium grantii, which is a name that this plant is often referred to, was renamed Euphorbia umbellata (Pax) Bruyns), but we continue to list it under its older name until such time as this name gets better recognized. 

The information displayed on this page about Synadenium compactum var. rubrum is based on our research conducted about this plant from books in our nursery library as well as from information that is provided by reliable online resources. We also have included our own observations made about it as it grew in the nursery gardens and other gardens visited, as well how the crops of this plant performed in the containers when we had them in our nursery field. We also include comments received from others and welcome hearing from anyone who has information about this plant, particularly if it includes cultural information aiding others to better grow it.

 
We closed for regular business at the end of 2025 in order for the property to be developed for affordable housing.
Our gates remain closed but we will open them by appointment to interested parties as we liquidate remaining supplies and equipment.
 
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