June Gardening To-Do List

The shining sun and warm weather means that summer has arrived. It’s that time of year to start getting the jump on your gardening. Most of Utah falls under zone 5 of the USDA Plant Hardiness Zones. This map helps gardeners and growers identify which plants will thrive in certain locations and best of all, when to plant and harvest them. So put on your hat, find your gloves and get going on this gardening to-do list for June.

Flowers & Plants:

  • Divide and transplant spring-flowering perennials that have finished bloomingcanstockphoto10086456
  • Sow (i.e. plant) seeds of perennials directly into the ground
  • Fertilize roses now

✔Trick: To supply potassium, blend banana peels in a blender, then add the mixture beneath the mulch around your roses.

  • Pinch newest shoots on geranium plants to encourage fuller plants
  • Feed roses as the first flower buds appear and apply fungicide to prevent powdery mildew or blackspot disease from appearing

✔Tip: Organic fungicides that work on blackspot disease include copper, lime sulfur, neem oil, potassium or ammonium bicarbonate and sulfur.

  • Mulch flower gardens to conserve water and keep costs down during heat waves

Fruits & Vegetables:

  • Weed strawberry and asparagus beds
  • Feed young corn plants with high-nitrogen fish emulsion fertilizer
  • Dust potato plants to prevent infestations of potato beetle

✔Did you know: The potato beetle is one of the most difficult garden pests to get rid of due to its developed resistance to many insecticides.

  • Mulch vegetable gardens to conserve water during heat waves
  • Spray tomato plants with compost tea to prevent diseases.

✔Trick: Make your own compost teat by steeping an old pillowcase filled with compost in a bucket of water.

  • Harvest salad crops and replant every 2 weeks for a constant supply of tasty leaves.
  • Great time to start planting sweet potatoes and regular (russet) potatoes
  • You can also start planting carrots, peppers, cucumbers, winter and summer squash
  • Toward the end of the month start planting corn and beans
  • Don’t forget to harvest spinach, broccoli, beets and peas this month

Lawn & Trees:

  • Train your lawn to grow deep roots by mowing often, at a high setting.

✔Did you know: Deep roots are the key to a healthy lawn and improving drought tolerance.

  • Make sure your lawn gets one inch of water per week. If you irrigate, water deeply to encourage deeper roots.
  • Control existing weeds with a post-emergent herbicide, or by pulling or digging.

✔Tip: Removing weeds before they bloom and disperse their seeds helps reduce next year’s crop.

  • Plant balled-and-burlapped and container shrubs and trees
  • Thin out small green fruits on apple, peach and plum trees to one every 6-inches on the branch