Cape Primrose Streptocarpus 'Jessica'

Water

Cape primrose, commonly known as Streptocarpus 'Jessica', should be watered when the top inch of soil feels dry to the touch. Depending on the humidity and temperature of the environment, this might range from once a week to every other week. Use room temperature water and gently pour it onto the soil until you see water draining from the bottom of the pot—this ensures the root system is thoroughly moistened. It's important not to let the plant sit in standing water, so empty the saucer shortly after watering. The amount often works out to about 8-16 ounces of water for a 6-inch pot, each watering session.

Light

Cape primrose requires bright indirect light to thrive best. Place the plant in a spot where it can receive filtered sunlight, such as near an east or north-facing window. Direct afternoon sunlight should be avoided as it can scorch the leaves. If natural light is insufficient, consider using a grow light for part of the day to supplement.

Temperature

The Cape primrose prefers cooler temperatures and does well in a range with a minimum of 50 degrees Fahrenheit and a maximum of 75 degrees Fahrenheit. The ideal temperature for this plant is between 60 and 70 degrees Fahrenheit. Be cautious of placing it near drafts, heating vents, or air conditioners as extreme temperature shifts can stress the plant.

Pruning

The Cape primrose benefits from regular pruning to remove faded flowers and yellowing leaves, which encourages new growth and prolongs blooming. Pruning is best done after a flowering cycle ends. Deadheading, or the removal of spent flowers, can be performed as needed throughout the bloom period to keep the plant tidy and may stimulate further blooming.

Cleaning

As needed

Soil

The best soil mix for Cape Primrose (Streptocarpus 'Jessica') is light and well-draining, consisting of 2 parts peat moss or coco coir, 1 part perlite or vermiculite, and 1 part fine bark or compost to add a bit of structure and nutrients. The soil pH should ideally be slightly acidic to neutral, ranging from 6.0 to 7.0.

Repotting

Cape Primrose should be repotted every year or whenever it outgrows its current container. The best time to repot this plant is in spring or summer, which allows for active growth following the repotting process.

Humidity & Misting

Cape Primrose thrives best in moderate to high humidity levels, ideally between 50% to 60%. It is important to maintain these humidity levels for the plant's optimal health and to promote lush foliage and vibrant blooms.

Suitable locations

• Indoor

  Place in bright, indirect light; keep compost moist.

• Outdoor

  Sheltered spot, dappled shade; protect from frost.

• Hardiness zone

  10-11 USDA

Life cycle

The life of Streptocarpus 'Jessica', commonly known as Cape Primrose, begins with seed germination, typically in a moist, well-draining medium with temperatures around 70°F. Upon sprouting, seedlings develop their first set of true leaves and enter the vegetative growth stage, where they focus on leaf expansion and root development. During this period, the plant requires bright, indirect light and consistent moisture. Cape Primrose will then transition to the flowering stage when mature enough, producing velvety flowers in a variety of colors depending on the cultivar, often for an extended period if properly cared for with reduced feeding in winter. After the flowering stage, if flowers are pollinated, seed pods may form, elongating into twisted shapes (hence 'Streptocarpus' meaning 'twisted fruit'), containing numerous tiny seeds that can be collected for propagation. The plant can live for many years as a perennial in suitable conditions, with each rosette lasting several years before dying back, while new rosettes develop to continue the cycle.

Propogation

• Propogation time

  Spring to Summer

• Streptocarpus 'Jessica', commonly known as Cape Primrose, can be propagated by leaf cuttings, a popular method for its ease and effectiveness. The best time to propagate is during the plant's active growth period, generally in the spring or early summer. To propagate using a leaf cutting, select a healthy, mature leaf and cut it across into pieces about 1 to 2 inches (approximately 2.5 to 5 centimeters) long, ensuring each piece has a vein. Lay the cuttings on the surface of a well-draining potting mix and slightly press them into the soil. The leaf pieces should be kept moist and in a warm, bright environment, but out of direct sunlight. In a few weeks, new plants will begin to form at the base of the cuttings. These can be potted individually once they have grown large enough to handle.