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Zonal geranium, geranium

Pelargonium x hortorum

Plants of Home and Garden

Hybrid geraniums are sown indoors in fall or winter for spring blooming, 1/4" deep, with a soil temperature of 70-75F/21-24C ideal. For summer flowers, soak seeds in warm water 24 hours then plant 8-10 weeks before setting out, some 10" apart. Constant moisture essential. Annual; note also that many hybrid geraniums are sterile and will not produce seed themselves. Once established, plants are quite drought-tolerant

Cuttings from new shoots are taken in spring or late summer. To divide, simply pull fibrous rootball into even parts with healthy roots and shoots. Can overwinter by propagating from stem cuttings 2-4" long taken late summer, and rooted in water or a sterile soil mixture. Or dig up and cut roots back to 2", stems to 4-5", and replant into damp well-drained soil, store in a cool place. Alternatively, simply dig the roots and keep these dark and cool till early spring

Rose geranium (Pelargonium graveolens)

Cuttings
Soil
Plants of Home and Garden
Soaking and Pricking

 
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