Zone 6 Planting Dates & Garden Guide Last frost ~Apr 15, first frost ~Oct 22

Gardening strategy for Zone 6

Zone 6 is salad-country if you commit to continuous greens and keep row cover within arm's reach. The 190 frost-free days from April 15 through October 22 are long enough for tomatoes and melons, but the real advantage here is nearly year-round leafy harvests when you succession-sow and protect through shoulder seasons. Sow lettuce, arugula, spinach, and mesclun every ten to fourteen days from late March through September — never leave a bed empty more than a week after harvest. Lightweight row cover (0.5 oz fabric) over spring and fall plantings adds four to six degrees of frost protection and blocks flea beetles on arugula and mustard. Switch to heavyweight cover (1.5 oz) in October to carry spinach and mache into November and sometimes December depending on your microclimate. Summer heat still bolts lettuce quickly; plant heat-tolerant cultivars like Nevada or Jericho for June and July sowings, or shift to Swiss chard and New Zealand spinach when mercury climbs. Warm-season anchors — tomatoes, peppers, bush beans — go in after soil hits 60 F in late April, but treat them as the center of the plate, not the whole menu. A July planting of carrots and beets fills the gap when salad greens slow down. Garlic goes in mid-October while beds are still workable. The Zone 6 gardener who masters green succession and row-cover timing eats fresh salad ten months a year without a heated greenhouse.

Tips for Zone 6 gardeners

• Succession-sow salad greens every ten to fourteen days from late March — your 190 frost-free days support near-continuous harvests with row cover.
• Switch from lightweight to heavyweight row cover in October to extend spinach harvests past the October 22 average first frost.
• Direct-sow carrots and beets in mid-July when summer lettuce bolts — roots mature in cool fall weather before hard freeze.