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Applying fertilizers, checking growing conditions, pruning, and re-potting are ways to encourage thickening in Euphorbia trigona.

Specifically, the succulent plant in question also goes by the common names African milk tree and cathedral plant, in reference to its church spire-like growth pattern. It is natural for a cathedral cactus to show thick inward- and outward-branching growth. An African milk tree that has thin branches and stems probably suffers from problems with the care or the container.

Care issues include over- or under-exposure to light, moisture and nutrients. A heat/light concern is solved by changing the orientation or the position of the plant within the room. A moisture issue needs to be addressed by checking drainage since the soil always must be slightly moist and never permitted to dry out or waterlog. A nutrient problem requires a low-nitrogen fertilizer since this particular euphorbia's growth depends more upon phosphorus, potassium and trace elements than upon nitrogen.

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11y ago

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