Guide to growing Leadwort Ceratostigma
The low growing Ceratostigma genus is a half hardy or hardy perennial.
Ceratostigma is also known by the common names of Leadwort and Plumbago.
Ceratostigma tends to flower from summer to autumn with deep blue blooms and has a beautiful bronze leaves when flowering.
Due to its small size leadwortand plumbago make ideal plants for rockeries or as a fill in plant for stone walls.
How to grow Leadwort - Ceratostigma
Ceratostigma require cold to germinate so should therefore be sown out before the last frost of spring or in the autumn. Seeds should be covered. Ceratostigma prefers to grow in partially shaded or sunny parts of the garden and will grow in most soils, though best results will be got in an organic soil. If you want to grow Leadwort or other Ceratostigma species from seeds indoors first then they should be imbibed by placing the seeds (within soil) in a black bag, then placing in the fridge for five or six weeks. Seeds should then be sown out at a temperature of 15 Celsius; they normally take about one to three months to germinate.
Caring for Ceratostigma in the garden
Ceratostigma seedlings should be transplanted in early spring with a spacing of 30 to 45cm. Hardy species of Ceratostigma can also be planted out in the autumn. Plants should be regularly watered, but do not drench them; they should be cut back in the autumn.