How to Prune a Passiflora Caerulea


Commonly known as the blue passionflower, Passiflora caerulea is a twining, flowering vine that grows to 30 feet in length. A fast growing plant, P. caerulea, under ideal conditions, may need pruning monthly during the growing season to keep it from taking over the garden. The good news is that the plant blooms on new growth so the more you prune it, the more it will flower. Save the major pruning for spring. Passiflora caerulea is hardy to USDA zones 8 through 11.

Step 1

Cut any vines that have overrun the support system by pruning them back to the main stem.

Step 2

Remove all dead vines by cutting them to the ground.

Step 3

Cut to the ground any vines that are thinner than the others.

Step 4

Remove vines that are growing together or tangled in the middle of the plant. Try to open up the middle rather than cut growth from the top.

Step 5

Rake up all pruning debris and old mulch, bag it and dispose of it.

Step 6

Apply a 3-inch layer of mulch, 2 inches from the base of the Passiflora caerula and completely surrounding it.

Step 7

Water the Passiflora caerula until the soil is saturated.

Things You'll Need

  • Sharp pruning shears
  • Mulch


  • Floridata: Passiflora Caerulea
  • ‭"‬California Master Gardener Handbook";‭ ‬Dennis R.‭ ‬Pittenger‭; ‬2002
  • Nebraska Statewide Arboretum: Vines and Climbers
Keywords: prune Passiflora caerulea, prune passionflower vine, cut back passionflower

About this Author

Victoria Hunter, a former broadcaster and real estate agent, has provided audio and written services to both small businesses and large corporations, worldwide. Hunter is a freelance writer specializing in the real estate industry. She devotes her spare time to her other passions: gardening and cooking. Hunter holds a Bachelor of Arts in English/creative writing.