Soil and lack of growth
We have a large garden the soil in which is sandy. There is, and has been since I came here in 1995, a lack of growth and flowering of shrubs, not just in the garden soil but with plants in pots also. Can anyone suggest any ideas why this is so please? I add compost to the garden soil (JI number 2) when planting but as an example I bought a Montana 2 months ago planted it in a mix of JI and soil and it has grown 18 inches but is very very spindly. The roots are protected from the sun. Any clues gratefully received. Thanks.