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By Marjram

United Kingdom Gb

What is the hardiest of the callistemon varieties?

On plant Callistemon



C. salignus - but it has small yellow flowers. Will survive most of our winters (though probably not last year's). Otherwise, C. citrinus 'Splendens' is hardy in a south facing, very sheltered situation in the south and west - mine survived this year on a southfacing balcony, for instance.

4 Apr, 2011


Callistemon linearis is pretty tough - I've had it for 15 years now. The foliage looks very scorched at present but I think it's going to pull through

4 Apr, 2011


Many thanks for your replies. Another question, this time on soil. I was going to put a callistemon by a brick wall but is the cement from the wall likely to make to soil alkaline? can you add anything to the soil to ensure it is acidic?

4 Apr, 2011


they're usually planted in the lee of a wall or fence for protection, but should be a minimum of 1.5 feet away. I don't think it'll cause any problems with alkalinity - callistemon prefer slightly acid, but its not critical.

4 Apr, 2011


When planting Callistemons in our highly alkaline soil, we put in about 1/8 liter of soil sulfur crystals, in an extra wide planting hole. Each crystal forms a zone of acid soil around it that the roots can draw nutrients from.

5 Apr, 2011

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