I have bought geraniums most years, for as long as I can remember because they are one of my favourite flowering plants. I tried growing them from seed a few years ago, but they worked out quite expensive as packets usually contain only a small number of seeds. Additionally, the seed is classed as not easy yo germinate.
This year I bought three potted Geraniums, and they have provided very good colour from early June until now. I have moved them from their new large stone pot into the glasshouse in order to prolong flowering, and to protect them from the cold winter. I will watch out for any lingering whitefly or mould, and quickly nip it in the bud.
They are easy to grow, and easy to care for. Additionally, they are easy to propagate from stem cuttings. I checked for plant information on the RHS website, which is my online reference of choice, and here’s what it has to say:
How to grow:
Grow in fertile well-drained soil in full sun or partial shade. Remove spent flowers. To overwinter, grow small plants in late summer from cuttings or cut back old plants by one third and lift for storage in frost-free place to repot in spring when growth resumes
How to care
Pruning: Deadhead regularly
Diseases: Foot and root rots can be a problem in wet soils. Grey moulds are often troublesome in wet conditions. A virus can often be a problem where cultivars are maintained by cuttings. Pelargonium rust can be damaging to zonal pelargoniums and associated hybrids.