Above all else, dahlias are susceptible to tuber rot if they're left to sit in wet soil. Sarah says that in tuber form, ...

Growing a cut flower garden requires patience and lots of seedlings! Here's expert advice from Gather Flower Farm on how to do it.

Put them in a coldframe for hardening off before planting outdoors in mid-May to June. Dahlias need rich soil in a sunny spot, so dig in soil improver before planting. Plant the tubers out when all ...