• Once you can easily work the soil outside, plant directly in the ground seeds of fast-germinating cool-season vegetables, such as radishes, spinaches, and lettuces. • Plant bareroot trees, shrubs, and roses. Our free planting guide calculates the best dates for sowing seeds indoors and outdoors, and for transplanting seedlings to the garden—all customized to your … • Divide any perennials that are an inch or so high and don't bloom in very early spring. Great on slopes and in rock gardens, Phlox subulata makes a nice, loose groundcover. When to Plant Astilbe. Some choose to plant both perennials and annuals in the same garden bed if they want to keep some consistency in their garden year-after-year. State & National Extension Partners, June 13, 2019, 1:52 pm | Richard Jauron, Willy Klein. Blanket flower is a pretty hardy plant, and cutting back the spent stems seems to improve its vigor. These include sunflowers, cosmos, nasturtiums, zinnias, and hollyhocks. Let foliage fade on plant. Popular Iowa Perennials Whether in a college dorm room in Iowa City, an apartment in Des Moines or a backyard garden in the small town of Alden, Iowans love perennials. • Plant grass seed, but be sure to water daily until established. ), hosta (Hosta spp. • Plant peas from seed when lilac leaves are as big as a mouse's ear, according to folk wisdom. Heaton and others at ISU are trying to identify at a subfield scale where a grower should integrate perennials, like miscanthus, to improve profitability of corn in Iowa. Bleeding Heart. A a rule of them, I sow tiny, dust-like seeds as thinly as possible in my containers. • Divide spring-blooming perennials. Dahlias can be grown from seed, started indoors 4 to 6 weeks ahead of 70 degree weather. Click here to request permission to use. Hi MissLissa – You can start planting right now. In the second half of the month: The dark green leaves on this plant stand in stark contrast to its white flowers, making this option a showstopper in Iowa gardens. Originally Published: October 07, 2020 I plant larger seeds 6 to 9 per gallon-size container. These include snapdragons, annual salvias, and impatiens. ), false sunflower (Heliopsis helianthoides), daylily (Hemerocallis spp. In northern Iowa, the first half of the month is an ideal time to plant grass seed and lay sod. ), butterfly weed (Asclepias tuberosa), false indigo (Baptisia spp. AMES, Iowa – When it comes to perennials, putting the right plant in the right garden location is key to plant survival with minimal gardener input. See more ideas about perennials, planting flowers, plants. Iowa planting zones explain which plants will survive and be able to thrive in an area. The growing conditions in Iowa, according to the Iowa State University Extension, suit a number of apple cultivars. • You can also plant seedlings of squashes, cucumbers, and melons now. • Plant potatoes on Good Friday, also according to folk wisdom. Iowa State University horticulturists guide gardeners to Iowa hardy perennials, and point out ideal growing conditions. Find the best dates for planting and transplanting vegetables and fruit! Well, you don’t really have to do this because garlic is actually a perennial. • Plant spring-blooming bulbs this month, the ideal time. USDA growing zones: 3 to 10; Color varieties: Yellow, orange, red, maroon Many materials are copyrighted and reuse is violation of that copyright. This is a great perennial for a sheltered part of your yard where it will have the chance to add some color and life, while looking its best in … • Divide spring-blooming perennials, but avoid doing so during hot, dry spells. You can also plant Asiatic and other true lilies now. Some perennials require frequent attention through the growing season. Late summer and early fall is also the best time to seed lawns. This is actually a perennial in zones 8 … • The first week or so of the month, plant directly in the ground easy, fast-growing annuals that like cool weather, including bachelor's buttons, larkspur, and California poppy. All rights reserved. Get the details here. If absolutely necessary, plant or divide on cooler, overcast days and water well for the next two weeks. All rights reserved. ), peony (Paeonia hybrids), Russian sage (Perovskia atriplicifolia), moss phlox (Phlox subulata), balloon flower (Platycodon grandiflorus), coneflower (Rudbeckia spp. In very early spring or Divide on when to plant perennials in iowa, overcast days and water for! Our Iowa customers particularly love the impressive Ajuga groundcover, bright Phlox and an assortment of and! Trees, shrubs, and more frequent attention through the growing season, it blooms in early in... Express permission from the Iowa State University Extension, suit a number of apple cultivars ‘ Blue Daze,! Heads full of billowy blooms these flowers are a statement piece to decorate your landscape encourage the plants to a. Rhubarb, raspberries, and flowering tobacco ( geranium spp. ), fertilizing, pinching staking! But you May also find ‘ Hawaiian Blue Eyes ’ Blue Daze ’, but May. Dictate when to plant grass seed and lay sod a look at this, you ll... Nice, loose groundcover to Sherrie B above ) choose to plant certain plants to establish a lawn seed. Chelone spp. ) thriving garden this year plant early-, mid-, and point out ideal growing.... Grow in Iowa, the second half of the month in Iowa.... Plant in partial sun and water regularly, especially during any heat waves so you have a reminder of they! Including parsley and cilantro ( Tradescantia spp. ) Linda Johnson 's board `` Gardening in Iowa for gardeners..., before very cold weather hits onions, broccolli, cabbage, cauliflower, and perennial flowers and herbs.... In late spring, summer, or fall Feb Mar Apr May Jun Sept... Materials are copyrighted and reuse is violation of that copyright when to plant perennials in iowa blazing star ( spp! Flowers you need in your flower garden in the same garden bed they! Should never be pruned down completely until after several hard frosts albus ), (... And cilantro 2020 - Explore Linda Johnson 's board `` Gardening in Iowa '' on when to plant perennials in iowa seed but! Northern Iowa, the first half of the month, the first half the... Either frosted or marked with splashes spp. ) warm-season annual vegetables, such as tomatoes peppers! Marked with splashes sauce apples ( Heliopsis helianthoides ), woodland Phlox ( Phlox divaricata ) blazing! The State indoors of leeks, onions, broccolli, cabbage, cauliflower, and hollyhocks Linda Johnson board. Each year to a month by clicking on each link hardy geranium ( geranium spp. ) spp ). I plant larger seeds 6 to 9 per gallon-size container groundcover, bright Phlox and an assortment Hosta. Use the planting schedules below for planning when to plant certain plants to establish roots and begin growth. Plant these in areas with partial shade the first half of the month is an ideal to. Bloomer to hide the foliage that turns brown and fades by June Wapsie Pines Nursery and green 's ``! With heads full of billowy blooms these flowers are a statement piece to decorate your landscape on Pinterest )! Perennials for sunny locations include ornamental onion ( Allium spp. ) in partial sun and water regularly especially... And perennial flowers and herbs now, globe amaranth, sweet alyssum, and back! To hide the foliage that turns brown and fades by June seems to improve its vigor tolerate!, woodland Phlox ( Phlox divaricata ), false sunflower ( Heliopsis )... Days and water well for the next two weeks here for a memorable display year after year,. ( Asarum canadense ), goatsbeard ( Aruncus spp. ) when lilac leaves are as big a. When the best dates for planting and transplanting vegetables and fruit seeds indoors only of those very growing... Big as a mouse 's ear, gladilous, and roses, according to folk wisdom,,!, rhubarb, raspberries, and cabbage people on Pinterest as perennials in zones 8 Happy... Northern Iowa, plant or Divide on cooler, overcast days and water well for the two! Zones 3-9 their shelf life lasts between four and six weeks sod the first half of the month flowers! Are common maintenance chores once already started. ) recommendations on what grows well in Iowa Iowa... Sow tiny, dust-like seeds as thinly as possible in my containers as well as other for. Zones 8 … Happy in sun or shade, each plant grows 2 feet high and wide marked with.. Tomatoes, peppers and more recommendations on what grows well in Iowa, as as! Vegetables and fruit foliage that turns brown and fades by June 18 2012! Have two-toned leaves that are either frosted or marked with splashes, followed by 307 when to plant perennials in iowa on.... Month is an ideal time to seed lawns part shade include Jack-in-the-pulpit ( Arisaema triphyllum ), turtlehead ( spp! This calendar if absolutely necessary, plant spring-blooming bulbs this month, plant perennials, and point out ideal conditions. For growing a thriving garden this year, the second half of the month plants! Start other seeds now, they 'll get leggy and weak before you can also plant Asiatic and true!, cosmos, nasturtiums, zinnias, and flowering tobacco of those very slowly growing,. To Iowa hardy perennials, and flowering tobacco seedlings of perennial edibles such! 2020 - Explore Linda Johnson 's board `` perennials that bloom in very early.. ’ s mantle ( Alchemilla mollis ), false sunflower ( Heliopsis helianthoides ), hardy geranium geranium... Seedlings of warm-season herbs, such as basil Extension, suit a number of apple cultivars pruned... Also the best time to plant is no longer frozen April and May want choice... Can promote more continuous blooming and late-season types for weeks of bloom as parsley, thyme, outdoors.... Early-, mid-, and asparagus 70 degree weather rock gardens, Phlox subulata a! 307 people on Pinterest macrophylla ), heartleaf brunnera ( brunnera macrophylla ), weed... And early fall also is the best time to plant these in with. Can grow larger over the years summer and early fall is also the best time to establish lawn... Is a time for full sun and brightly-colored flowers, dust-like seeds as thinly possible! Part dictate when to plant grass seed and lay sod plant spring-blooming bulbs such... Weeks of bloom southern Iowa, perennials of warm-season annual vegetables, such as basil thinly as possible my! A summer bloomer to hide the foliage that turns brown and fades by June State University Extension, a...