Blue or purple asters are a great choice to plant near snapdragons, including 'Wood's Blue', 'Wood's Purple', 'Bluebird', or 'Purple Dome'. There are many sedum ground cover varieties. The late ...
Lavender ( Lavandula) is a mounding shrub with blueish-purple flowers. There are many different drought-tolerant varieties, ...
Always pull apart or prune clumping roots of rootbound plants so that they can grow straight. It is safe to say that everybody likes snapdragons. Children appreciate your making puppets out of them.