June 2021 Gardening Tips

By June 23, 2021Garden Tips

By Ira Wallace of Southern Exposure Seed Exchange
and the author of  The Timber Press Guide to Vegetable Gardening in the Southeast and the new Grow Great Vegetables in Virginia

In mid – June mulch tomatoes, peppers, okra, squash, cucumbers and asparagus to control weeds and retain moisture if it hasn’t already been done.

Harvest onions on a dry day after half the tops have fallen over. For better storage harvest garlic when the 6th leaf down on 50% of the plants is brown. Hang onions and garlic to air cure for 2 weeks before trimming and storing.

Continue to sow weekly successions of  beans, corn, cucumbers, and summer squash. Begin sowing very heat resistant lettuces like Jericho, Anuenue, Sierra, and Slo-bolt every 7 days under  light weight row cover or shade cloth. Transplant  seedlings after 3 or 4 weeks to a spot with afternoon shade on an overcast day. For a steady supply and to help avoid gluts read our blog post on Summer Succession Pantings.

Hand pick or use BT to control Colorado Potato Beetles as soon as the first larvae are spotted on early potatoes and again every 7-10 days. Mid June plant and mulch Fall potatoes while your onions and garlic are curing.

Finish planting and hill up peanuts at 12″ tall and mulch before they peg. Transplant any remaining leek seedlings.

In the last week of June begin to sow Brassicas for Fall (brocccoli, cauliflower, cabbage, savoys) 2 or 3 sowings a week apart under spun polyester row cover.  Prepare beds and be ready to transplant Brassicas in July or August when they have 4 leaves (4-6 weeks) and other mustard greens even earlier. Keep them under row cover until plants are large and sturdy. SESE’s own Ken Bezilla offers great tips in his Fall & Winter Gardening Guide.

If you have any extra time weed and mulch any crops that need some more.