What to do in the garden in June

2 minute(s) read Categories Gardening calendar


June is a great time to get out in the garden. The days are getting warmer but the heat isn’t unbearable and working outdoors is pleasant. You can get a lot done when the days are getting longer, but be sure to allow time to sit back and relax now and then. 

You may not need a reminder of the many tasks that need doing in June, but the following will provide some direction to your days:  


  • Deadhead wilted flowers regularly to promote continued blooming. 
  • Similarly, deadhead spring-blooming shrubs to encourage strong growth and beautiful blooms next year. 
  • Cut back spring-blooming perennials after flowering; you may get a second flush of blooms. 
  • Plant tender bulbs like canna and gladiolas. 
  • June should be warm enough for planting begonias, impatiens and other frost-tender annuals.  
  • Plant containers, window boxes and hanging baskets.
  • Plant new perennials in beds or containers before it gets too hot. 
  • Pinch back geraniums and fuchsia to promote full, bushy growth. 
  • Check containers daily. Potting mix dries quickly when the weather gets warmer. 
  • Feed annuals every couple of weeks, using a balanced, water-soluble fertilizer.  


  • Cut lots of flowers for enjoying indoors. 
  • Deadhead wilted roses. 
  • A little extra mulch around shallow-rooted shrubs like rhodies and azaleas will keep the roots moist and conserve water. 
  • Trim conifers lightly, but never cut back to bare wood. 
  • Plant cucumbers and squash seeds outdoors about two weeks after the last average frost.  
  • Buy tomato transplants if you prefer not to grow tomatoes from seed. Look for short, stocky, bushy plants. When it comes to tomatoes, taller isn’t better. 
  • Start picking rhubarb. Freeze some for pies and sauces.  
  • Harvest garlic when the tops bend over and turn yellow. 
  • Feed tomatoes lightly every week, using an all-purpose fertilizer or a product formulated specifically for tomatoes.   
  • Earth up potato plants with soil or straw to prevent sunlight from damaging the tubers. 
  • Harvest new potatoes as they ripen. 
  • Start harvesting herbs to dry or freeze. 
  • Raise the blade on your mower to 3 or 4 inches (8 -10 cm.). Scalping stresses the grass when the days turn hot and dry.  
  • Water your lawn deeply and avoid shallow, frequent irrigation.  
  • Keep removing weeds as they appear. At this point, you may need a weed killer if weeds have gained the upper hand. 
  • Watch for powdery mildew. Spray with fungicide to prevent spread. 
  • Treat pests and diseases at the first sign of trouble.