ACROSS
Plant, genus , used as a herb - Jo confused with marram (8) Suppose includes this genus of herbaceous perennials with white umbels (6) Egremont is a variety of this type of apple (6) Oxfordshire house with classic William Kent garden - ruined our hams! (7) Collectively, a flower's Royal colour of loosestrife, (6) Fiery red/yellow helenium (Mariachi Series) … in Corfu eg orangery (5) Saintly, patriotic name of a mix of red and white sweet peas (2,6) Reddish-purple bergamot - has a sting in its tail? (8) Genus of catmint plant - carmine petals in part (6) Plant's lateral root that forms a new plant… to counterbalance (6) A crisphead lettuce that's a danger in the main! (7) Like side shoot growths … are tall, twisting (7) Eg trug or punnet (6) A caramel/pink - for a vast desert (6) Popular rock-garden plant with white, yellow or mauve flowers - helps make Italy's summer! (7)