Botanical Name: Pelargonium spp. Sun Exposure: Full, partial Soil Type: Fertile, well-draining Soil pH: Slightly acidic (6.0-6.5) Ivy geraniums have a trailing habit and classic cottage charm. Some don't do well in the summer heat, but you can find hybrids designed to withstand a Southern summer. If the leaves burn, move your plant to a spot that is protected from the afternoon sun.