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May 2017
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May garden checklist

 

Indoors

  • Move houseplants to a shady location outdoors when danger of frost has past, usually mid-May. The soil in the pots will dry out faster outdoors, so check it frequently.

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  • Take cuttings from houseplants to increase collection or share. Root cuttings in media such as vermiculite, perlite or potting soil.
  • Fertilize houseplants according to label directions.

General landscape

  • Prune early spring-flowering trees and shrubs after flowers fade.
  • Plant balled-and-burlapped or container nursery stock; water thoroughly.
  • Remove and destroy bagworms from trees and shrubs.
  • Mow lawn as needed to height of 3 1/2 or 4 inches.
  • Allow foliage of spring-flowering bulbs to ripen and yellow or brown before cutting back. Leaves make the food reserves stored in the bulbs that bring next year’s flowers. Divide or transplant spring-flowering bulbs after they’ve finished blooming. Mark empty spaces in the landscape to show where to plant spring-flowering bulbs next fall.
  • Begin organic rose care.
  • Divide or transplant perennials.
  • Plant tender ornamentals after danger of frost is past. This includes most annual flowers and tender perennials, such as cannas, gladiolus, dahlias, tuberous begonias and caladiums.
  • Mulch garden beds.
  • Pinch late-blooming perennials, such as chrysanthemums and asters, and certain annuals to keep them compact and well branched.
  • Stay on top of the weeds by pulling them as soon as you see them, once a week, after a rain, or whatever works on with schedule.

Vegetables and Fruits

  • Once there is no threat of frost, usually by mid-May, plant tender plants such as tomatoes, corn, peppers, eggplant, vine crops
  • Make successive plantings of beans and sweet corn to extend the harvest.
  • Thin seedlings of early-planted crops to spacing specified on seed packet or plant tag.
  • Harvest early plantings of radishes, spinach and lettuce.
  • Harvest asparagus by cutting or snapping spears at or just below soil level.
  • Harvest rhubarb by cutting, or grasp stalk and pull it slightly to one side.
  • Remove blossoms from newly set strawberry plantsto allow better runner formation.
  • Remove unwanted suckers in raspberries when new shoots are about a foot tall.
  • Begin organic practices in growing your apples. Thin fruit on apple trees to 8 inches apart about three weeks after their flower petals fall.

 

April garden checklist

Indoors

  • Prune, repot and clean houseplants as needed.houseplant-window-stockxpertcom_id848849_size2
  • Fertilize houseplants as new growth appears. Follow label directions.
  • If not done already, sketch garden plans, including what to grow, spacing, arrangement and number of plants needed.
  • Order seeds and plants as early as soon as possible.
    Cyclamen. (C) iStockphoto
  • Place Easter lily, florist azalea, cyclamen and other seasonal flowering plants in bright, indirect sunlight. Keep soil moist.
  • Pot up summer flowering bulbs to be transplanted outdoors later, including tuberous begonias, caladiums and cannas.
  • Start seeds of warm-season plants, including tomatoes, peppers, eggplant, marigolds, zinnias and petunias for planting outdoors in mid-May.
Cyclamen. (C) iStockphoto

Cyclamen. (C) iStockphoto

General Landscape

  • Fertilize woody plants before new growth begins.
  • Complete pruning to remove dead and injured branches from trees and shrubs. Prune spring flowering shrubs, such as forsythia or lilacs, within a month after blooming.
  • Mow grass as needed to 3 1/2- to 4-inches tall.
  • Remove winter-damaged ground covers with trimmers or shears.
  • Divide or transplant hardy perennials.
  • Allow foliage of spring-flowering bulbs to ripen and yellow or brown before cutting back. Leaves make the food reserves stored in the bulbs that bring next year’s flowers. Divide or transplant spring-flowering bulbs after they’ve finished blooming. Mark empty spaces in the landscape to show where to plant spring-flowering bulbs next fall.
  • Harden off transplants started indoors earlier by gradually exposing young plants to outdoor conditions of wind, sunlight and lower moisture.
  • Remove winter covering from roses. Keep mulch nearby to use on plants in case of late freezes. Prune and fertilize as needed.

Vegetables and Fruits

  • Sow seeds for cool-season crops, including peas, lettuce, spinach, carrots, beets, turnips, parsnips and Swiss chard, directly in the garden as soon as soil can be worked. Soil should crumble instead of forming a ball when squeezed.

    Mesclun seedlings can be transplanted outdoors anytime or the seeds can be sown directly in the garden. Photo courtesy National Garden Bureau

    Mesclun seedlings can be transplanted outdoors anytime or the seeds can be sown directly in the garden. Photo courtesy National Garden Bureau

  • Plant seedlings of cool-season crops, such as broccoli, cauliflower, cabbage, Brussels sprouts, kohlrabi and onions.
  • Plant asparagus and rhubarb crowns. (Do not harvest until three years after planting.)
  • Plant certified, disease-free potato sections or seed tubers.
  • Plant strawberries, raspberries and other small fruit.
  • Remove winter mulch from strawberries, but keep it handy in case late frosts threaten and to keep weeds down.
  • Prune grape vines to remove dead or weakened limbs. Repair trellises as needed.
  • Apply a pre-bloom, multipurpose orchard spray to fruit trees.

 

March garden checklist

Soil readiness.

Soil readiness.

Indoors

  • Prune, repot and clean houseplants as needed.
  • Fertilize houseplants as new growth appears. Follow label directions.
  • Sketch garden plans, including what to grow, spacing, arrangement, number of plants needed and sequence.
  • Order seeds and plants as early as possible for best selection.
  • Place Easter lily, florist azalea, cyclamen and other seasonal flowering plants in bright, indirect sunlight. Keep soil moist.
  • Pot up summer flowering bulbs to be transplanted outdoors later, including tuberous begonias, caladiums and cannas.
  • Start seeds of warm season vegetables and flowers in early March in southern Indiana. In northern and central Indiana, wait until late March or early April. Transplant outdoors when danger of frost is past, usually mid-May.

General Landscape

  • Warm spring days tempt us into the garden to prepare the soil and begin planting. However, do not work the soil if it is wet. If soil is worked too early, its structure is damaged. Here’s an easy test: Take a handful of soil.  If it crumbles in your hand, the soil is ready to work. If it forms a ball, the soil is too wet.
  • Prepare tools for their summer job. Sharpen mower blades.

    Prepare lawn and garden equipment for upcoming growing season. Sharpen blades and have equipment serviced as early as possible.

  • Prune trees and shrubs except those that bloom early in spring.
  • Plant container grown and balled-and-burlapped trees and shrubs as soon as the soil dries enough to be worked. Plant bare-root plants before they leaf out.
  • Fertilize woody plants before new growth begins but after soil temperatures have reached 40 degrees, usually early March in southern Indiana and late March in the north.
  • Apply horticulture oil spray, if needed, to control scale insects and mites when tips of leaves start to protrude from buds.
  • Avoid walking on soft ground. Walking on soil compacts it.
  • Seed bare spots in lawn.
  • Apply corn gluten, a natural pre-emergent herbicide, when grass starts active growth in southern Indiana only. Wait until April in the north . Corn gluten keeps weed seeds from sprouting but does not kill existing plants. For more info: University of Minnesota’s Corn Gluten Meal: A Natural Pre-Emergence Herbicide.
  • Remove leaves, twigs and trash from yard.
  • Set lawn mower to cut at 3 ½ to 4-inches high.
  • Cut to the ground perennials that were left standing for winter interest. Divide and transplant perennials when soil can be worked.
  • Cut ornamental grasses as close to the ground as possible. Transplant or divide ornamental grasses.
  • Remove winter covering from roses as soon as new growth begins. Prune and fertilize as needed.
  • Sow seed or plant seedlings of cool-season and half-hardy annuals, including calendula, larkspur, poppy, snapdragons, English daisy, pansies and sunflowers.
  • Harden off transplants by setting them outdoors during the day for about a week before planting.
  • Follow last fall’s soil test recommendations for fertilizer and pH; soil also can be tested this spring.

Vegetables and Fruits

  • Plant seedlings of cool season vegetables and flowers as soon as the soil is dry enough to work. These include broccoli, cabbage, Brussels sprouts, peas, spinach, lettuces, radishes and beets. For more details on specific vegetables and planting dates, see Purdue University’s Home Gardener’s Guide.
  • Remove old asparagus and rhubarb tops; side dress with nitrogen or manure.
  • Plant or transplant asparagus, rhubarb and small fruit plants.
  • Remove winter mulch from strawberry beds as soon as new growth begins; keep mulch nearby to protect against frost and freezes.
  • Before new growth begins on raspberry plants, remove canes that fruited last year and any that are weak, diseased or damaged.
  • Prune grape vines to remove dead or weakened limbs. Repair trellises as needed.

 

 

 

February garden checklist

Indoors

  • Keep houseplants close to bright windows. Check soil for dryness before watering.
  • Examine produce, tender flower bulbs and roots stored for the winter for rot, shriveling or excess moisture. Remove and discard damaged material.
  • Sketch garden plans, including what to grow, spacing, arrangement and number of plants needed.
  • Order seeds and plants as early as possible for best selection.
  • Renees Garden SeedTest left over garden seed for germination. Place 10 seeds between moist paper toweling, or cover with a thin layer of soil. Keep seeds warm and moist. If fewer than six seeds germinate, buy fresh seed.
  • Wash pots and trays that will be used for seed sowing and transplants.
  • Start seeds for cool-season vegetables, such as broccoli, Brussels sprouts, cauliflower and cabbage, five to seven weeks before transplanting outdoors.
  • Start seeds for impatiens, begonia, geranium and other slow growing annuals.

General Landscape

  • Prune landscape plants except early spring bloomers, which should be pruned within a month after the have finished blooming. Birches, maples, dogwoods and other heavy sap bleeders can be pruned in early summer.
  • Repair or build trellis for roses, grapes and other vining plants as needed.
  • Fertilize spring-flowering bulbs as they break ground.
  • Prepare lawn and garden equipment for the upcoming growing season. Sharpen blades and have equipment serviced before the spring rush.

Vegetables and Fruits

January garden checklist

 

Waiting for the beautiful red amaryllis to bloom. (C) Jo Ellen Meyers Sharp

Indoors

General Landscape

  • Keep road and sidewalk salt away from plants. If necessary, screen the plants with burlap to keep off spray. Calcium chloride products are recommended over sodium chloride to melt ice. Sand, cinders, ash and fresh kitty litter also may be used instead of ice-melting salts.
  • Prune summer and fall blooming woody plants, including vines, shrubs and trees.
  • Use hand or a broom to gently brush away heavy snow that may accumulate on shrubs before it freezes.
  • new growthApply an all-purpose natural fertilizer or a dusting of compost around spring-flowering bulbs as they break ground.

Vegetables and Fruits

  • Examine produce, tender flower bulbs and roots stored for the winter to make sure there is no rot, shriveling or excess moisture. Remove and discard damaged material.

2013 Spring Garden Clinic

February 9, 2013

The Hoosier Gardener will review blue flowers in the hopes of squashing the notion among some that there are not blue flowers for the garden. Her talk, I Guess That’s Why They Call It The Blues, is part of the annual Spring Garden Clinic, held this year at St. Luke Methodist Church, 86th Street and Spring Mill Road in Indianapolis.

 

February garden checklist posted

The checklist of things to do in the garden in February is posted.