The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.

If you don’t want to deal with towering plants that overwhelm smaller containers, I look for dwarf varieties. Here are my ...

Since many types of zinnias are annuals, you need to replant the seeds each year. One way to save a little cash and learn ...