How to Germinate Passion Fruit

Fill 4-inch square pots with sterile, low-acid potting soil. Leave a 1/4-inch gap between the surface of the soil and the brim of the pot.

Sow three passion fruit seeds in each pot. Press the seeds 1/4-inch deep into the soil. Sprinkle a pinch of fine sand over the surface of the soil to help hold in moisture.

Spritz the soil with a water-filled spray bottle until it is moist at a 1/2-inch depth. Maintain moisture at that level while the passion fruit seeds germinate.

Place the pots atop a waterproof warming mat near a brightly-lit window. Set the temperature on the warming mat to between 70 and 75 F.

Drape a sheet of newspaper across the top of the pots to diffuse the light and to help hold moisture around the soil. Remove the newspaper when you water the seeds and replace it afterward.

Check for germination one month after sowing the passion fruit seeds. Thin out all but one of the seedlings from each pot if more than one successfully germinates.

Remove the newspaper from the pots after germination. Keep the pots on the warming mat for one more week after germination to keep them actively growing.

Transplant the passion fruit vines into a permanent bed after the last frost. Wait until the soil warms to 65 F before transplanting the vines outdoors.