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Herbaceous perennials are some of the most colorful and beautiful additions to the landscape. Perennials live year to year in the garden, dying back to the ground each fall and returning in the spring from their root systems. They thrive in various conditions—from sunny spots to shaded areas and moist to dry soil. With a diverse range of forms, colors, and blooms, there’s a perennial for every garden.

Care for perennials, including natives, is easy. Learn more about growing and maintaining perennials in the Midwest landscape with our monthly tips.

The calendar is 12x9 inches when closed, 12x18 inches when open.

Perennials such as tuberous begonias, gladioli, cannas, and dahlias are an integral part of many home landscapes. They are excellent displays of color until a killing frost. Unfortunately, they will not survive our harsh winter weather outdoors and must be dug in the fall and stored indoors through the winter months. Cultural and winter storage requirements for several commonly grown tender perennials are provided below.

Replaces RG 0311 - Growing and Over-wintering Tender Perennials - Reiman Gardens

Mums, ‘Autumn Joy’ sedum, and Back-eyed Susan are commonly planted perennials that bloom in late summer through early fall. The following perennials are other attractive additions to the late season garden.

Previously known as RG 0304 - Late Season Perennial Flowers - Reiman Gardens

Feed your club, community, country, and your world with monthly, hands-on research-based learning opportunities. Gardening to give features activities on gardening and growing, designed for all ages and experience levels. Working together, we can provide food for our loved ones, and donate to food pantries while engaging in this horticulture learning experience.

This Gardening to Give lesson focuses on annuals and perennials.

Additional information about the program is available on the Gardening to Give webpage.

This publication contains a high diversity seed mix developed by the Iowa State University Monarch Research Team for research purposes.

All species are perennials native to Iowa.

Several perennials that bloom in early spring are often forgotten about among flowers like crocuses and daffodils. Learn how pig squeak, heartleaf brunnera, Lenten rose, candytuft, crested iris, Virginia bluebells, moss phlox, lungwort or Bethlehem sage, pasque flower, and bloodroot could enhance your garden.

Chrysanthemums reach their peak when most annuals and perennials are winding down for the season. Mums also offer gardeners a wide range of colors and flower forms and only require moderate levels of maintenance.

Herbaceous perennials are commonly divided for three reasons: to control size, to rejuvenate plants, and to propagate a prized perennial. The best time to divide perennials varies with the different plant species. Get the details here.

Selecting and planting shade-tolerant perennials, annuals, trees, and shrubs can turn a shady site into an attractively landscaped area. Publication discusses perennials that are good choices for partially to heavily shaded locations.

Public gardens are an excellent place to learn about plants and get design ideas for your own garden and landscape. This guide is designed to give you basic information about the plants growing in Midwest gardens.

Inside you'll find color photos and basic information about growing 300 annual and perennial flowers, Buck roses, ornamental grasses, herbs, vines, and even water plants. Symbols help to identify sun/shade requirements and indicate special uses (containers, butterfly gardens, etc).

Color photos and descriptions of 20 drought tolerant annuals and perennials.

If you think hostas are your only choice for shady gardens, think again. This full color publication gives growing characteristics, plant descriptions, and other tips for more than 70 perennials for shade gardens in zones 3 to 5. Special features include 130 color photos, bloom time comparisons, and specialty plant lists.

Hundreds of perennials prefer the bright light and accompanying heat that define sunny sites. This full color publication gives growing characteristics for more than 100 perennials that thrive in the sun in zones 3 to 5. Special features include 140 color photos, plant descriptions, specialty plant lists, and other tips.