Save money. Plant Passiflora or Passion flowers in large pots of 30 cm or at a warm location against a pergola or trellis. Buy Hydrangea Bushes Get patented hybrid hydrangea shrubs that flower blue and red on the same plant. The ovary and stamens are held ato… A top tropical vine, Lavender Lady passionflower shows off intricate violet flowers all summer long. Carry on browsing if you're happy with this, or find out how to manage cookies. Complex 4 flowers keep coming all summer and don't stop until late fall! In fact, passion flowers have been used for over 200 years by Native Americans for their soothing, sedative effects. Youâre seeing this ad based on the productâs relevance to your search query. There's a problem loading this menu right now.