|Olbiais a semi-evergreen, 3 to 5 lobed, with gray-green leaves. Grown for their showy, 5 petaled, funnel-shaped, dark pink summer flowers, the mallow does best when grown in light soil that is moderately fertile and well-drained. Sun should be full. Will not tolerate cold, drying winds. For annuals, sow in situ, mid to late spring, biennials in midsummer. Also known as L. Rosea.