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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.

 

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

Seed saving, storage tips

Store seed in a cool, dry place. (C) Jo Ellen Meyers Sharp

Store seed in a cool, dry place. (C) Jo Ellen Meyers Sharp

If you didn’t use up all of the garden seed you bought this year, much of it can be stored for use in next year’s garden, depending on the plant species, says Rosie Lerner, a consumer horticulturist at Purdue University and state coordinator of Indiana Master Gardeners.

Here are her tips:

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