Data specific to Cape Primroses (Edit)
Streptocarpus Division: Subg. Streptocarpella

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 9b -3.9 °C (25 °F) to -1.1 °C (30 °F)
Plant Height: 6 inches
Plant Spread: 10 inches
Leaves: Evergreen
Flowers: Showy
Flower Color: Lavender
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Late fall or early winter
Suitable Locations: Terrariums
Uses: Suitable as Annual
Resistances: Humidity tolerant
Propagation: Seeds: Needs specific temperature: 70-75 degrees F
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Cuttings: Leaf
Division
Containers: Suitable in 1 gallon
Suitable for hanging baskets
Needs excellent drainage in pots

Image
Common names
  • Streptocarpella
  • Cape Primrose
  • False African Violet
  • Cape Violet

Photo Gallery

Date: 2015-08-05
#pollination
Location: Schwartz's Greenhouse, Romulus, MI
Date: 2010-05-24
Location: New Orleans
Date: 2013-04-03
Location: Ann Arbor, Michigan
Date: Potted plant

Photo courtesy of Annie's Annuals and Perennials
Location: Opp, AL  Z8b
Date: 2022-05-29
Uploaded by plantladylin

Date: 2014-01-24
Location: Schwartz's Greenhouse, Romulus, MI
Date: 2010-05-24
Location: Daytona Beach, Florida
Date: 2014-07-10
Location: central Illinois
Date: 2014-07-14
Location: Opp, AL  Z8b
Date: 2022-06-01
Uploaded by sedumzz
Location: Schwartz's Greenhouse, Romulus, MI
Date: 2010-05-24
Location: My kitchen window sill
Date: 10 February 2013 at 16:35 p.m.
Close-up of Cape Violet Flower
Location: Opp, AL  Z8b
Date: 2022-11-27
Location: MOBOT -   St Louis
Date: 2011-08-09
Location: central Illinois
Date: 2009-12-04

Photo by Nzfauna
Location: Columbus, OH
Date: 7-12-03
Location: central Illinois
Date: 2014-10-12

Date: October 30, 2010
Location: My Northeastern Indiana Gardens - Zone 5b
Date: 2012-06-19

Photo courtesy of Annie's Annuals and Perennials
Uploaded by purpleinopp
Uploaded by purpleinopp
Location: central Illinois
Date: 2016-01-01
Grows year round in the basement under lights.
Location: Fairfax, VA | September 2022
Date: 2022-09-03
Boysenberry delight VS Concord blue
Location: central Illinois
Date: 2017-03-14
Location: central Illinois
Date: 2012-03-09
Location: central Illinois
Date: 3-13-12
This plant is tagged in:
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Comments:
  • Posted by plantladylin (Sebastian, Florida - Zone 10a) on Aug 27, 2014 9:11 AM concerning plant:
    Streptocarpus saxorum is a member of the Gesneriad family of plants. Its relatives include the African Violets (Saintpaulia species), Lipstick Plants (Aeschynanthus species), and many others. I find Streptocarpella to be a very easy plant that thrives in bright light or dappled shade. It makes a great annual in a shady part of the flower bed, as well as in a hanging basket, or as a container plant for the porch. Many grow Streptocarpella year round as an indoor houseplant, hanging in a bright window. Streptocarpella requires a well-draining potting medium and consistently moist (but not soggy) soil and thrives on high humidity. This plant has soft, velvety leaves, and if kept too dry, it will pout and get droopy, but it will immediately perk up once it's watered, as long as you don't let it sit and dry out for too long. Never subject this plant to direct sun or you will find very scorched leaves. There is no need to dead-head Streptocarpella as the spent flowers fall easily on their own. I love the graceful, arching habit of the plant hanging over the edges of the container and the pretty purplish-blue flowers that seem to attract hummingbirds! Although I've only grown the blue-flowering varieties over the years, there are varieties of S. saxorum with white flowers, as well as pink. Streptocarpella is very easy to propagate by taking stem cuttings, removing the lower leaves, and placing the stems in a moist potting medium in a shady location.
  • Posted by bennysplace (Castle Rock, CO - Zone 5a) on May 23, 2013 9:16 PM concerning plant:
    I have dubbed this the best houseplant to have. It can take all sorts of abuse and still thrive. If you underwater it, it droops a bit but hangs on. If you overwater it, I think it actually loves that because I can never seem to add enough water to my specimens. They drink it up quite happily. As far as propagation, all you need to do is pinch off a little stem, remove the bottom leaves, and stick it in continually moist soil (self watering African violet pots do the trick nicely). After a week, it grows new leaves and after a couple weeks, those infamous purplish-blue flowers appear. After a couple of months, you have a vigorous small plant ready for a new pot. It really is that easy. I have never seen a plant quite like this. Last summer, I inadvertently set one out in full sun and because it was out of view, it received no water. The leaves were gone, the stems were wilted, and I thought it was a goner. I took it in, cut it down to the dirt, kept the soil consistently wet, and it came back to life as if nothing had ever happened to it. If you do not have one, get yourself one. You will be glad you did. :)
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