Regional guide

Harris County Vegetable Planting Dates

Texas AgriLIFE Harris County chart for seed-unless-noted rows, ideal/marginal timing, freeze averages, and heat-shade cautions.

Regional timing

Current regional planting plan

Texas AgriLIFE Harris County chart for seed-unless-noted rows, ideal/marginal timing, freeze averages, and heat-shade cautions.

Source-backed timing Texas AgriLIFE Extension Service Harris County Vegetable Garden Planting Dates

Harris County 274 frost-free days

Mar 1 last frost spring release Nov 30 first frost fall limit

The source is Vegetable Garden Planting Dates for Harris County from Texas AgriLIFE Extension Service and the Harris County Office.
The one-page chart uses January through December columns with Ideal Planting Time and Marginal Planting Time labels.
The chart says Planting times are for seeds unless otherwise noted, with row labels for dormant crowns, transplants, seeds, cut pieces, and slips.

Catalog priority: 34 priority crops
Climate checks: 5 climate signals
Timing basis: Using Harris County dates

Source-backed timing March 1 last freeze and November 30 first freeze using the Bush station row.

Hobby and Bush stations differ; use the closer station if you know it.

Crop priority Red Garnet Amaranth leads the catalog examples

Red Garnet Amaranth, Green Globe Artichoke, Astro Arugula, Provider Bush Bean

Next local check Use this as a Harris County chart tied to the Hobby and Bush freeze references, not an all-Texas calendar.

Source rows include Artichoke, Asparagus, Beans - Snap and Lima, Beets, Broccoli, Brussels sprouts, Cabbage, Cabbage - Chinese, Carrots, and Cauliflower.

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. Texas Fall A Texas fall vegetable guide for five AgriLife gardening regions, fall planting dates, transplants, and frost-tolerance grouping.

Climate signals

The source is Vegetable Garden Planting Dates for Harris County from Texas AgriLIFE Extension Service and the Harris County Office.
The one-page chart uses January through December columns with Ideal Planting Time and Marginal Planting Time labels.
The chart says Planting times are for seeds unless otherwise noted, with row labels for dormant crowns, transplants, seeds, cut pieces, and slips.
Average Last Freeze Dates are listed as Hobby 2/8 and Bush 3/1; Average First Freeze Dates are listed as Bush 11/30 and Hobby 12/20.
Plants grown over winter may require protection during freezing weather, and seeds and transplants started in the heat of summer will benefit from shading during establishment.

Planning notes

Use this as a Harris County chart tied to the Hobby and Bush freeze references, not an all-Texas calendar.
Source rows include Artichoke, Asparagus, Beans - Snap and Lima, Beets, Broccoli, Brussels sprouts, Cabbage, Cabbage - Chinese, Carrots, and Cauliflower.
Source rows include Swiss chard, Collards, Corn, Cucumbers, Eggplant, Garlic, Kale, Kohlrabi, Leeks, and Lettuce with Arugula, Mache, and Sorrel.
Source rows include Melon, Mustard, Okra, Onion - bulbing, Onion - multiplying/bunching, Peas - English and Snap, Peas - Southern, Pepper, Potato - Irish, and Potato - Sweet.
Source rows include Pumpkin, Radish, Spinach, Squash - Summer, Squash - Winter, Tomato, Turnips, Summer Greens - Malabar, Amaranth, and Watermelon.
Chinese cabbage, garlic, bulb onions, southern peas, Irish potatoes, sweet potatoes, and summer squash are source rows without priority links.
Use these priority catalog links as crop-row examples, not AgriLife variety endorsements.

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.

Red Garnet Amaranth Vegetable · Warm · 45 days
Green Globe Artichoke Vegetable · Warm · 120 days
Astro Arugula Vegetable · Cool · 35 days
Provider Bush Bean Vegetable · Warm · 50 days
Detroit Dark Red Beet Vegetable · Cool · 58 days
Waltham 29 Broccoli Vegetable · Cool · 74 days
Long Island Improved Brussels Sprouts Vegetable · Cool · 100 days
Golden Acre Cabbage Vegetable · Cool · 64 days
Danvers 126 Carrot Vegetable · Shoulder · 70 days
Snowball Y Cauliflower Vegetable · Cool · 70 days
Bright Lights Swiss Chard Vegetable · Shoulder · 55 days
Georgia Southern Collards Vegetable · Cool · 65 days
Golden Bantam Sweet Corn Vegetable · Warm · 80 days
Marketmore 76 Cucumber Vegetable · Warm · 58 days
Black Beauty Eggplant Vegetable · Warm · 80 days
Lacinato Kale Vegetable · Cool · 60 days
Early White Vienna Kohlrabi Vegetable · Cool · 55 days
American Flag Leek Vegetable · Cool · 120 days
Black Seeded Simpson Lettuce Vegetable · Cool · 45 days
Vit Mache Corn Salad Vegetable · Cool · 50 days
Red Stem Malabar Spinach Vegetable · Warm · 70 days
Hale's Best Jumbo Melon Vegetable · Warm · 85 days
Southern Giant Curled Mustard Vegetable · Cool · 45 days
Clemson Spineless Okra Vegetable · Warm · 56 days
Evergreen Bunching Onion Vegetable · Shoulder · 65 days
Sugar Snap Pea Vegetable · Cool · 62 days
California Wonder Pepper Vegetable · Warm · 72 days
Small Sugar Pumpkin Vegetable · Warm · 100 days
French Breakfast Radish Vegetable · Cool · 28 days
Bloomsdale Spinach Vegetable · Cool · 42 days
Waltham Butternut Squash Vegetable · Warm · 95 days
Roma Tomato Vegetable · Warm · 76 days
Purple Top White Globe Turnip Vegetable · Cool · 55 days
Sugar Baby Watermelon Vegetable · Warm · 80 days

Related regional guides

Texas Fall Vegetable Garden A Texas fall vegetable guide for five AgriLife gardening regions, fall planting dates, transplants, and frost-tolerance grouping.
Texas Home Vegetable Gardening Guide Texas A&M AgriLife frost-relative home vegetable guide for spring/fall timing, transplant care, seed depth, watering, mulch, and pests.
Travis County Vegetable Planting Guide Texas A&M AgriLife Travis County 2025 planting guide for station frost averages, ideal/marginal timing, and crop-row examples.
Rockwall North Central Texas Vegetable Planting Guide Rockwall County Master Gardeners guide for North Central Texas dates, frost averages, soil-temperature checks, and crop rows.
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Source: Texas AgriLIFE Extension Service Harris County Vegetable Garden Planting Dates