I am considering a few lavender plants for our new garden. We leave in Richmond Hill, ON and I was wondering what would be the best variety to withstand the winter months when left in the ground? Would appreciate your advice. Thanks!
Richmond Hill is in growing zone 5b so you should take into consideration the hardiness of the lavender plant and have a site with good drainage, full sun, soil not too acidic, snow cover if possible to allow the plant to overwinter and protection from wind. And, yes, lavender plants are more likely to survive the winter when planted in the ground.
Some good varieties for zone 5 are: English lavender ‘Munstead’ and ‘Hidcote’ varieties available from area nurseries.