The incidence of vertigo has been reported to be as high as 1.5% in the general population and some reports suggest that more than 5% of adults experience some kind of vertigo each year. In 80% of affected individuals, this symptom resulted in a medical consultation, interruption of daily activities, or sick leave.
Temperature Thresholds. According to Protabase, geraniums grow well in the temperature range of 65 to 95 degrees F during the growing season, and in the winter low temperatures between 40 to 50 degrees F, according to the A-Z Encyclopedia of Garden Plants..
Sow seed geraniums in well-drained soil with a pH of 6.0 to 6.2. The seeds do not need light to germinate, but a thin layer of vermiculite helps retain moisture. Seed geraniums also benefit from light fertilization one to three days after sowing. Sow seeds indoors about eight to 10 weeks before moving them outdoors with other warm-weather annuals.