Well-drained, dry soil. Penstemon will not tolerate wet soil. Plants are ideal for rock gardens. Filtered sun to full shade. These phlox are excellent plants for shady rock gardens or for naturalizing in woodland settings.
Plants have an erect form.
Well-drained, evenly moist, slightly alkaline soil. Adapts to a wide range of conditions and may become weedy. A magnificent poppy with smooth blue-gray leaves that are irregularly divided. Handsome 4-6 inch flowers have 6 white petals with the texture of crepe paper. Romneya adapts well to garden soil conditions.