Learn how to germinate California pepper tree seeds!

California pepper trees (Schinus molle) grow quickly to 25 to 40 feet in height with an equal spread. This is an evergreen tree in USDA plant hardiness zones 8b through 11b. Figure out  your zone by entering your ZIP Code, here.

This tree bears peppery-scented foliage, and the female trees produce clusters of red berries that encapsulate the seeds. It’s these red berries you’ll need to harvest to germinate California pepper tree seeds.

Ironically, the California pepper tree is considered invasive in California.

California Pepper Tree Fruit Collection

Handling of any part of the California pepper tree may cause dermatitis in sensitive individuals, so wear gloves when working with the tree. Wait until the fruit turns red to harvest and then lay it in the sun to dry for about a week. You’ll know it’s ready when the outer covering rubs off easily with your hands.

Store the seeds in a glass jar until you are ready to plant them. Although they remain viable for up to two years, fresher seeds germinate at a higher rate.

Get the Soil Just Right

California pepper tree seeds require a loose medium in which to germinate, so lots of perlite combined with a quality seed-starting mix is ideal. 

Use cell trays or pots, whichever  is more convenient for you, and fill them to within ½ inch of the rim with a mixture of the seed starting soil and perlite. Water the mixture slowly to ensure that it becomes evenly moist. You may need to stir it as you add water. Allow the soil to drain completely before planting the seeds.

Planting the California Pepper Tree Seeds

You may notice that the California pepper tree’s seeds are coated with a sticky substance after removal from the husk. This substance needs to be removed before planting, so soak the seeds in room temperature water for 48 to 72 hours. If the pulp hasn’t floated away from the seeds, use a soft brush (an old toothbrush is ideal) to brush it from them.

Soaking the California pepper tree seeds will also help them to absorb water.

Place the seeds on the surface of the soil and cover them with a 1/8-inch layer of perlite or sand.

Care during Germination

California pepper tree seeds need to be kept slightly moist at all times during germination. The best way to accomplish this without disturbing the seed is by spraying the top layer of perlite or sand with water from a misting bottle.

Keep the containers out of the sun both before and after germination. Expect the seeds to germinate within 10 to 30 days.

Featured Image: “Schinus Molle” by Squeezeweasel at en.wikipedia – Liz Upton, own work.