Geraniums are a very hardy plant with small, lovely flowers than come in a variety of colors. The flowers are sturdy and hold up well to wind and rain. Geraniums will bloom right up until the first frost. Geraniums can withstand occasional dips in temperature below freezing, although in colder climates, where snow blankets the ground much of the year, geraniums should be grown in pots so they can be taken indoors. Harvest geranium cuttings, or slips, in early spring and your new plants will be blooming by the end of summer.
Cut 3 or 4 inches off the end of a healthy branch and strip off any leaves to make it easier to plant the slip in your growing pot.
Fill a growing pot with a mixture of 50% sand and 50% sphagnum peat moss.
Stick your cutting 1 inch deep into the growing pot and water well.
Place the growing pot in a warm location where it will get 8 hours or indirect sunlight every day. Do not place the pot in direct sunlight or the slip may end up baked. Keep the soil 72 to 75 degrees F as much as possible. Geranium slips root best when the soil is warm.
Water sparingly while slips are rooting. New growth should appear on your slips in 3 to 4 weeks. Allow plants to continue growing indoors for at least 30 days before planting outdoors.
Choose a sunny location and dig a hole just bigger than the root ball of your geranium. Mix sphagnum moss into the soil until there is approximately a 50/50 mixture. Plant your slips no deeper than they were when they were sprouting. Water well.
Apply 1/2 of the recommended strength of 20-20-20 liquid fertilizer once your geraniums are established--approximately 7 days after planting. Water after fertilizing and wash any fertilizer off of leaves.