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January February March April May June
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Garden Tasks for June

Just living is not enough....
One must have sunshine, freedom,
and a little flower.
- Hans Christian Anderson

Annuals

  • Weed, water, and fertilize as-needed.

  • Plant to fill gaps in beds or to replace plantings that have failed.

  • Watch for signs of pests and diseases.

  • Deadhead spent flowers to promote new flowers.

  • Cut flowers in early morning for longer-lasting blooms for indoor enjoyment.

Vegetables and Herbs

  • Plant basil, sweet potatoes, and lima beans when soil warms.

  • Harvest vegetables, and herbs as they mature; cut back foliage by 1/3 on herbs.

  • Side-dress corn, vine crops, and other heavy feeders with fertilizer.

  • Stop harvesting asparagus and rhubarb June 15th to let these plants grow and recharge their roots.

Patio and Container Plants

  • Monitor plants daily for water needs and pest control.

  • Apply water-soluble fertilizer such as  "Miracle Gro" or foliar feed plants as needed for healthy vigor—usually every 2 to 4 weeks.

  • Pinch back straggly plants and deadhead spent blooms to maintain a neat appearance and promote new blooms.

  • Replace seasonal and failed plants as needed.

Tree and Shrubs

  • Apply acid fertilizer , such as "Hollytone" to magnolias, rhododendrons, and other acid-loving plants.

  • Lightly prune small trees to increase air circulation and control white powdery mildew on leaves.

  • Prune junipers, yews, and hemlock hedges.

  • Prune pine and spruce trees in June or July; this will thicken the tree, especially around the trunk, as the tree matures.

  • Water as-needed.

  • Check for insects and diseases.  Apply insecticides and fungicides when necessary.

Roses

  • Continue watering whenever weather is dry.

  • Mulch bare spots.

  • Apply granular complete fertilizer such as ‘"Rosetone"

  • Cut fading flowers from ever-bloomers to encourage re-bloom.  Cut stems back to a leaf with 5 leaflets.

Tomatoes

  • Begin to prune, tie, train, and cage plants as needed.

  • After soil is warm, replace plastic mulch with organic mulch to prevent weeds and hold moisture.

  • Water deeply during dry spells to help prevent blossom-end rot.

  • Watch for signs of pests and diseases.

  • For a large fall crop, plant some late-started seedlings by end of the month.

Perennials and Bulbs

  • Weed, water, and fertilize as needed.

  • Deadhead after flowering to promote plant vigor and re-bloom. deadhead bulbs to prevent seed formation.

  • Remove brown, dry foliage of spring-flowering bulbs. leave green foliage.

  • Watch for signs of pests and diseases

Perennial plants arranged by bloom time.

Spring: ajuga, arabis, basket-of-gold, bergenia, bleeding heart, columbine, coral bells, euphorbia, foamflower, jacob’s ladder, lady’s mantle, leopard’s bane, peony, poppy, primrose, plumonaria, thrift, violet.

Summer: acanthus, astilbe, baby’s breath, bee balm, bellflower, blanket flower, catmint, coneflower, coreopsis, cranesbill, daylily, delphinium, dianthus, goat’s beard, hosta, iris, lavender, loosestrife, lupine, monkshood, penstemon, phlox, rudbeckia,veronica, yarrow.

Fall: aster, boltonia, chrysanthemum, cimicifuga, japanese anemone, goldenrod, lobelia, toad lily.

Lawns

  • Maintain a good mowing and watering schedule to keep grass healthy. Leave grass clippings on the lawn.

  • Apply post-emergent herbicides as-needed to control annual weeds. We suggest "Greenview 2-Way Green Power" to feed and weed.

  • Watch for signs of fungus and insect damage. Apply proper controls at recommended rates.

Adapted from Reader's Digest "1001 Hints and Tips for your Garden," 1998.

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