I think her first move should be repotting in fresh compost (a mix of John Innes No 2 with a bit of added multi-purpose compost would be my choice). Tell her to be careful not to get the white sap on her skin ... best to wear gloves, as it can burn ... especially in strong sunlight.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
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Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.