The guide says its crop rows are by seed unless otherwise stated, so rows labeled plants should be treated as transplant rows.
Regional guide
McHenry County Illinois Planting Guide
Illinois Extension McHenry County guide for seven vegetable planting windows, transplant labels, and fall harvest timing.
Regional timing
Current regional planting plan
Illinois Extension McHenry County guide for seven vegetable planting windows, transplant labels, and fall harvest timing.
Source-backed timing
Illinois Extension McHenry County vegetable garden planting guide
McHenry County IL
3 climate signals
Source
source cues
Local
conditions
- The Vegetable Garden Planting Guide for McHenry County comes from Bruce Spangenberg's Yard and Garden Manual for McHenry County 3/01 Edition.
- The guide says its crop rows are by seed unless otherwise stated, so rows labeled plants should be treated as transplant rows.
- Use this as a McHenry County planting-window example, not one exact date set for statewide Illinois or nearby metro gardens.
- Catalog priority
- 28 priority crops 28 catalog examples
- Climate checks
- 3 climate signals 9 planning notes
- Timing basis
- Use regional source signals source guidance first
Lacinato Kale, Early White Vienna Kohlrabi, Black Seeded Simpson Lettuce, Southern Giant Curled Mustard
Second planting is April 25 to May 5 for beets, broccoli plants, cabbage plants, carrots, head lettuce, New Zealand spinach, parsley, parsnips, radishes, salsify, and Swiss chard.
Calendar
Convert regional timing into dated sowing, transplant, and harvest jobs.
Frost dates
Keep hardiness zone context separate from local first and last frost dates.
All regions
Compare this guide with the broader regional atlas.
Illinois
An Illinois vegetable guide for Northern, Central, and Southern planting-date columns, frost-free ranges, and seasonal crop timing.
Climate signals
- The Vegetable Garden Planting Guide for McHenry County comes from Bruce Spangenberg's Yard and Garden Manual for McHenry County 3/01 Edition.
- The guide says its crop rows are by seed unless otherwise stated, so rows labeled plants should be treated as transplant rows.
- Use this as a McHenry County planting-window example, not one exact date set for statewide Illinois or nearby metro gardens.
Planning notes
- First planting is April 10 to 20 for asparagus, kale, kohlrabi, leaf lettuce, mustard, onion seeds and sets, peas, early potatoes, radishes, rhubarb, spinach, and early turnips.
- Second planting is April 25 to May 5 for beets, broccoli plants, cabbage plants, carrots, head lettuce, New Zealand spinach, parsley, parsnips, radishes, salsify, and Swiss chard.
- Third planting is May 10 to 20 for snap beans, sweet corn, and cauliflower plants.
- Fourth planting is May 15 to 31 for beets, carrots, cucumbers, eggplant plants, lima beans, sweet potatoes, peppers, snap beans, squash, tomatoes plants, watermelon, and muskmelon.
- Fifth planting is June 28 to July 8 for fall harvest rows including beets, broccoli plants, Brussels sprouts plants, cabbage plants, carrots, cauliflower plants, Chinese cabbage, endive, kale, pumpkin, snap beans, and summer squash.
- Sixth planting is July 17 to 26 for fall harvest rows of romaine lettuce, kohlrabi, late turnips, winter radishes, and snap beans.
- Seventh planting is August 11 to 20 for fall harvest rows of leaf lettuce, mustard, spinach, and spring radishes.
- Source rows without priority links include asparagus, early potatoes, rhubarb, New Zealand spinach, salsify, lima beans, sweet potatoes, generic squash, summer squash, and Chinese cabbage because the catalog lacks a clean crop match or the guide uses a broad source row.
- Use these priority catalog links as crop-row examples, not Illinois Extension cultivar recommendations.
Catalog crop examples
These catalog entries match crops covered by the regional timing source; variety-specific details remain tied to each seed entry's own source.
- Lacinato Kale Vegetable · Cool · 60 days
- Early White Vienna Kohlrabi Vegetable · Cool · 55 days
- Black Seeded Simpson Lettuce Vegetable · Cool · 45 days
- Southern Giant Curled Mustard Vegetable · Cool · 45 days
- Evergreen Bunching Onion Vegetable · Shoulder · 65 days
- Sugar Snap Pea Vegetable · Cool · 62 days
- French Breakfast Radish Vegetable · Cool · 28 days
- Bloomsdale Spinach Vegetable · Cool · 42 days
- Purple Top White Globe Turnip Vegetable · Cool · 55 days
- Detroit Dark Red Beet Vegetable · Cool · 58 days
- Waltham 29 Broccoli Vegetable · Cool · 74 days
- Golden Acre Cabbage Vegetable · Cool · 64 days
- Danvers 126 Carrot Vegetable · Shoulder · 70 days
- Italian Flat Leaf Parsley Herb · Shoulder · 75 days
- Hollow Crown Parsnip Vegetable · Cool · 120 days
- Bright Lights Swiss Chard Vegetable · Shoulder · 55 days
- Provider Bush Bean Vegetable · Warm · 50 days
- Golden Bantam Sweet Corn Vegetable · Warm · 80 days
- Snowball Y Cauliflower Vegetable · Cool · 70 days
- Marketmore 76 Cucumber Vegetable · Warm · 58 days
- Black Beauty Eggplant Vegetable · Warm · 80 days
- California Wonder Pepper Vegetable · Warm · 72 days
- Roma Tomato Vegetable · Warm · 76 days
- Sugar Baby Watermelon Vegetable · Warm · 80 days
- Hale's Best Jumbo Melon Vegetable · Warm · 85 days
- Long Island Improved Brussels Sprouts Vegetable · Cool · 100 days
- Green Curled Endive Vegetable · Cool · 85 days
- Small Sugar Pumpkin Vegetable · Warm · 100 days
Related regional guides
- Illinois Three-Region Vegetable Garden An Illinois vegetable guide for Northern, Central, and Southern planting-date columns, frost-free ranges, and seasonal crop timing.
- Chicago Area Illinois Vegetable Planting Guide Illinois Extension guide for Chicago-area gardeners using Northern Illinois planting windows with an urban heat caveat against Central Illinois dates.
Source: Illinois Extension McHenry County vegetable garden planting guide