June Top Tips


  • ContGarden-FCRoseAB-TLApply a balanced rose fertilizer after the first show of blooms is past. Use Osmocote good for the whole season.
  • Continue spraying roses with fungicide to prevent black spot disease.
  • Cutting back taller perennials (i.e., salvia, rudbeckia, tall garden phlox, etc.) now will keep them bushier and blooming longer.
  • Soaker hoses and Raindrip irrigation systems make the most efficient use of water during dry times. We can help you with your system.



  • Water turf as needed to prevent drought and stress. It should receive 1” of water per week.
  • Mow lawns frequently enough to remove no more than 1/3 of total height per mowing. There is not need to remove clippings unless excessive. Set mower higher during dryer weather to shade grass roots.



  • Prune flowering shrubs after they have bloomed (i.e., spirea, viburnum, etc.). Hand prune or shear evergreens (i.e., yews, holly, juniper, etc.).
  • Watch for bagworms on many garden plants, especially juniper and arborvitae, treat with permethrin. Watch spruce for spider mites which can be treated with Kelthane or Malathion.
  • Trees and shrubs may still be fertilized before July 4th.



  • Thinning overloaded fruit trees will result in larger and healthier fruits at harvest time. Thinned fruits should be hands-width apart.
  • Prune and train young fruit trees to eliminate poorly positioned branches and to established proper crotch angles.
  • Begin control for apple maggot flies. Red painted balls that have been coated with tanglefoot may be hung in apple trees to trap egg-laying females.
  • Oriental fruit moths emerge. Most serious on peaches where first generation attacks growing tips. Shoots will wilt. These should be pruned out. Use permethrin in season and apply dormant spray during February to prevent damage for the next season.
  • Renovate strawberries after harvest. Mow the rows; thin out excess plants; remove weeds; fertilize and apply a mulch for weed control. Use Osmocote 19-6-12 and mulch with grass clippings or straw.



  • Plant pumpkins now to have Jack-o-lanterns for Halloween.
  • To maximize top growth on asparagus, apply 2 lbs. of 10-20-10 fertilizer per 100 sq. ft. Water well and renew mulches to conserve moisture (end of June).
  • Stop harvesting asparagus when the spears become thin.
  • Control corn earworms. Apply several drops of mineral oil every 3-7 days once silks appear. Sprays with permethrin are also effective.
  • Repeat plantings of corn and beans to extend the harvest season.
  • As soon as cucumber and squash vines start to “run” begin spray treatments of insecticide to control cucumber beetles and squash vine borers.

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