Germination of a Pandorea Bower Vine

Seed Collection

• The colorful flowers of the pandorea bower vine are followed by 1- to 3-inch long brown seed pods, which can be collected when completely dry. Break the pods open and remove the seeds, storing them in a cool, dry location until ready for planting. Discard those that are very small or abnormally shaped, as they are not likely to germinate properly.

Site Selection

• This vine does best with exposure to full sun, though it survives in partial sun as well. It isn't very particular about soil conditions and even grows in clay, though rich soil is likely to produce the fastest growth. Good drainage is a must, however, to keep the roots from rotting. One way to determine drainage is to examine the site a few hours after a hard rain shower; if water is still standing or it is very soggy, drainage is probably not sufficient.

Site Preparation and Planting

• Before sowing the seeds, the site must be cleared of all grass or other vegetation that would hinder germination. Loosen the soil at least 6 inches deep so that developing roots can easily penetrate. Adding 2 to 3 inches of organic compost is also beneficial, especially in poor soil. Sow the pandorea bower vine seeds at a depth equal to half their diameter. Water just until the soil sticks to your finger, but avoid using direct spray from the hose because this may push the seeds too deeply into the soil.

Seedling Care

• The seedlings require very little care once they emerge. Thin the plants to leave a space of 36 to 60 inches between each. A layer of mulch placed under, but not against, the young vines reduces the need for both watering and weeding. Provide supplemental moisture when less than an inch of rain falls in one week to encourage a strong root system.