Geraniums are one of the most satisfying plants to grow in a greenhouse during winter. In my barely heated Zone 7 greenhouse, they bloomed profusely, much more so than they did later on outside.
Propagation is easy:
Cut off a stem that has several leaf nodes.
Trim off the bottom leaves.
Dip this stem in rooting hormone.
Stick the cutting in pure perlite, or in a mix of 1 part perlite/1 part potting soil.
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