By Louisew
United Kingdom 
are dahlia's acid loving plants
5 Apr, 2009
Answers
I grow them in chalky alkaline soil. they are greedy and thirsty plants so i give then plenty of manure/compost when planting.
5 Apr, 2009
One of my books says they will like a slightly acidic soil of around pH6.5 but no less than 6
5 Apr, 2009