Plant perennials from seed.
They should be up and ready to move to a permanent location by September. Make sure developing tomatoes get enough moisture. Clear mulch away from soil directly adjacent to the house. A mulch-free band makes a less inviting footpath for earwigs, which are most active in hot, humid weather. Michigan State University experts caution against planting when the soil is saturated with water, as it has been at many times this spring and early summer.