Missouri Environment and Garden Newsletter - AgEBB
Missouri Environment and Garden Volume 11, No. 5
News for Missouri's Gardens, Yards and Resources May 2005

Gardening Calendar

This calendar is provided as a general guide to gardening activities.

May

Ornamentals

  • Fertilize azaleas after bloom. Use a formulation that has an acid reaction.
  • Week 1: Begin planting gladiolus bulbs as the ground warms. Continue at two-week intervals.
  • Weeks 1-2: Don’t remove spring bulb foliage prematurely or next year’s flower production will decline. Canker worms (inch worms) rarely cause permanent damage to ornamentals. Use B.T. if control is deemed necessary.
  • Week 4: Pinch back mums to promote bushy growth.

Fruits

  • Mulch blueberries with pine needles or sawdust.
  • Week 1: Don’t spray any fruits while in bloom. Refer to local Extension publications for fruit spray schedules.
  • Week 4: Prune unwanted shoots as they appear on fruit trees.

Vegetables

  • Growing lettuce under screening materials will slow bolting and extend harvests into hot weather.
  • Week 1: Set out tomato plants as soils warm. Place support stakes alongside at planting time.
  • Weeks 1-2: Plant dill to use when making pickles.
  • Weeks 2-4: Watch for striped and spotted cucumber beetles now. Both may spread wilt and mosaic diseases to squash and cucumber plants.
  • Weeks 3-4: Set out peppers and eggplants after soils have warmed. Plant sweet potatoes now.

Turfgrass

  • Weeks 2-4: Mow zoysia lawns at 1.5 inch height. Remove no more than one-half inch at each mowing. Apply post-emergence broadleaf weed controls now if needed.
  • Week 4: Watch for sod webworms emerging now.

General Gardening

  • Birds eat many insect pests. Attract them to your garden by providing good nesting habitats.
  • Weeks 2-4:Herbs planted in average soils need no extra fertilizer. Too much may reduce flavor and pungency at harvest.
  • Weeks 3-4:Take houseplants outdoors when nights will remain above 50 degrees. Most prefer only direct morning sun.

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