Frost Dates for Conroe, TX 77306
Conroe has 7 ZIP codes. The Conroe, TX frost page lists all of them with their dates.
Last spring frost March 1 · First fall frost November 25 · 269 frost-free days · USDA Zone 9a
ZIP 77306 has about 18,100 people, one of 7 ZIP codes in Conroe.
Very long season: 269 frost-free days. Spring frost risk spans February 6–March 29 (51 days). Fall frost risk spans November 2–December 17 (45 days).
Frost probability for 77306
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | March 29 | March 1 | February 6 |
| Fall (first frost) | November 2 | November 25 | December 17 |
Dates come from NOAA 1971–2000 freeze probabilities at HOUSTON BUSH INTL AP (33.2 km away); the 50% date is the median year.
Which crops fit a 269-day season in Conroe
In Conroe (269 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
| Crop | Start indoors | Plant out / sow | Days you have | Verdict | Last sow date |
|---|---|---|---|---|---|
| Tomato | Jan 25 | Mar 15–Mar 22 | 227 | fits: 80 days to maturity, 227 available after Mar 15. | Jul 26 |
| Pepper | Jan 18 | Mar 15–Mar 22 | 227 | fits: 75 days to maturity, 227 available after Mar 15. | Jul 31 |
| Lettuce | Jan 4 | Feb 1–Feb 8 | 304 | two-plantings: Plant Feb 1 and again by Oct 4; both mature before Dec 2. | Oct 4 |
| Carrots | — | Feb 8–Feb 15 | 311 | fits: 70 days to maturity, 311 available after Feb 8. | Sep 23 |
| Cucumber | Feb 8 | Mar 15–Mar 22 | 241 | two-plantings: Plant Mar 15 and again by Aug 29; both mature before Nov 11. | Aug 29 |
| Beans | — | Mar 8–Mar 22 | 255 | two-plantings: Plant Mar 8 and again by Sep 5; both mature before Nov 18. | Sep 5 |
| Peas | — | Jan 4–Mar 15 | 332 | fits: 65 days to maturity, 332 available after Jan 4. | Sep 14 |
| Zucchini | Feb 15 | Mar 15–Mar 22 | 241 | two-plantings: Plant Mar 15 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Onion | Dec 7 | Feb 1–Feb 15 | 304 | fits: 100 days to maturity, 304 available after Feb 1. | — |
| Spinach | — | Jan 4–Feb 22 | 346 | two-plantings: Plant Jan 4 and again by Oct 23; both mature before Dec 16. | Oct 23 |
| Kale | Dec 21 | Feb 1–Feb 15 | 318 | two-plantings: Plant Feb 1 and again by Oct 8; both mature before Dec 16. | Oct 8 |
| Broccoli | Jan 4 | Feb 1–Feb 15 | 304 | fits: 80 days to maturity, 304 available after Feb 1. | Aug 30 |
| Cabbage | Jan 4 | Feb 1–Feb 15 | 318 | fits: 70 days to maturity, 318 available after Feb 1. | Sep 23 |
| Radish | — | Jan 4–Mar 29 | 332 | two-plantings: Plant Jan 4 and again by Oct 24; both mature before Dec 2. | Oct 24 |
| Beets | — | Jan 4–Mar 29 | 332 | two-plantings: Plant Jan 4 and again by Sep 24; both mature before Dec 2. | Sep 24 |
| Potatoes | — | Feb 15–Feb 22 | 290 | fits: 90 days to maturity, 290 available after Feb 15. | — |
| Garlic | — | Nov 25 | 374 | overwinter: Plant Nov 25 to Dec 16; harvest the following summer. | Dec 16 |
| Strawberry | — | Jan 25–Mar 22 | 325 | perennial: A perennial: plant Jan 25; it fruits from the following year and keeps producing for several years. | — |
| Corn | Feb 1 | Mar 8–Mar 15 | 241 | fits: 75 days to maturity, 241 available after Mar 8. | Aug 7 |
| Pumpkin | Feb 15 | Mar 15–Mar 15 | 234 | fits: 100 days to maturity, 234 available after Mar 15. | Jul 13 |
| Cauliflower | Jan 18 | Feb 22–Mar 8 | 283 | fits: 75 days to maturity, 283 available after Feb 22. | Sep 4 |
| Swiss Chard | Jan 4 | Feb 15–Feb 15 | 290 | two-plantings: Plant Feb 15 and again by Sep 24; both mature before Dec 2. | Sep 24 |
| Arugula | — | Jan 4–Mar 29 | 346 | two-plantings: Plant Jan 4 and again by Oct 23; both mature before Dec 16. | Oct 23 |
| Brussel Sprouts | Jan 4 | Feb 1–Feb 15 | 318 | fits: 100 days to maturity, 318 available after Feb 1. | Aug 24 |
| Butternut Squash | Feb 15 | Mar 15–Mar 22 | 234 | fits: 100 days to maturity, 234 available after Mar 15. | Jul 13 |
| Eggplant | Jan 11 | Mar 15–Mar 22 | 227 | fits: 70 days to maturity, 227 available after Mar 15. | Aug 5 |
| Okra | Feb 1 | Mar 8–Mar 15 | 248 | two-plantings: Plant Mar 8 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Basil | Jan 25 | Mar 22–Mar 22 | 234 | two-plantings: Plant Mar 22 and again by Aug 29; both mature before Nov 11. | Aug 29 |
| Cilantro | — | Feb 1–Feb 22 | 304 | two-plantings: Plant Feb 1 and again by Sep 29; both mature before Dec 2. | Sep 29 |
| Parsley | Dec 21 | Mar 8–Mar 15 | 269 | fits: 70 days to maturity, 269 available after Mar 8. | Sep 9 |
| Celery | Dec 21 | Mar 8–Mar 22 | 269 | fits: 120 days to maturity, 269 available after Mar 8. | Jul 21 |
| Scallions | Dec 21 | Feb 1–Feb 15 | 318 | two-plantings: Plant Feb 1 and again by Oct 3; both mature before Dec 16. | Oct 3 |
| Turnip | — | Feb 1–Feb 15 | 318 | two-plantings: Plant Feb 1 and again by Oct 13; both mature before Dec 16. | Oct 13 |
| Kohlrabi | — | Jan 18–Feb 1 | 332 | two-plantings: Plant Jan 18 and again by Oct 8; both mature before Dec 16. | Oct 8 |
| Bok Choy | Feb 1 | Feb 22–Mar 1 | 283 | two-plantings: Plant Feb 22 and again by Oct 4; both mature before Dec 2. | Oct 4 |
| Collards | Dec 21 | Feb 1–Feb 15 | 318 | two-plantings: Plant Feb 1 and again by Oct 3; both mature before Dec 16. | Oct 3 |
| Cantaloupe | Feb 15 | Mar 15–Mar 22 | 227 | fits: 85 days to maturity, 227 available after Mar 15. | Jul 21 |
| Chives | Dec 7 | Mar 8–Mar 15 | 283 | fits: 90 days to maturity, 283 available after Mar 8. | — |
| Dill | — | Jan 4–Mar 29 | 332 | two-plantings: Plant Jan 4 and again by Sep 24; both mature before Dec 2. | Sep 24 |
| Oregano | Dec 21 | Mar 8–Mar 15 | 283 | fits: 80 days to maturity, 283 available after Mar 8. | — |
| Rosemary | Dec 7 | Mar 8–Mar 15 | 269 | fits: 80 days to maturity, 269 available after Mar 8. | — |
| Sage | Jan 4 | Mar 8–Mar 15 | 283 | fits: 75 days to maturity, 283 available after Mar 8. | — |
| Thyme | Dec 21 | Mar 8–Mar 15 | 283 | fits: 90 days to maturity, 283 available after Mar 8. | — |
| Calendula | Jan 18 | Feb 15–Mar 1 | 290 | two-plantings: Plant Feb 15 and again by Sep 29; both mature before Dec 2. | Sep 29 |
| Cosmos | Feb 1 | Mar 1–Mar 15 | 255 | two-plantings: Plant Mar 1 and again by Aug 29; both mature before Nov 11. | Aug 29 |
| Lavender | Dec 7 | Mar 1–Mar 15 | 290 | fits: 90 days to maturity, 290 available after Mar 1. | — |
| Marigolds | Jan 18 | Mar 1–Mar 8 | 255 | two-plantings: Plant Mar 1 and again by Sep 8; both mature before Nov 11. | Sep 8 |
| Melons | Feb 15 | Mar 15–Mar 22 | 227 | fits: 85 days to maturity, 227 available after Mar 15. | Jul 21 |
| Mint | — | Mar 1–Mar 15 | 290 | fits: 90 days to maturity, 290 available after Mar 1. | — |
| Nasturtiums | Feb 1 | Mar 1–Mar 8 | 255 | two-plantings: Plant Mar 1 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Pole Beans | — | Mar 8–Mar 22 | 248 | fits: 65 days to maturity, 248 available after Mar 8. | Aug 24 |
| Spaghetti Squash | Feb 15 | Mar 15–Mar 22 | 234 | fits: 90 days to maturity, 234 available after Mar 15. | Jul 23 |
| Sunflowers | — | Mar 1–Mar 15 | 255 | fits: 70 days to maturity, 255 available after Mar 1. | Aug 19 |
| Tomatillos | Jan 4 | Mar 8–Mar 15 | 234 | fits: 75 days to maturity, 234 available after Mar 8. | Jul 31 |
| Watermelon | Feb 15 | Mar 8–Mar 15 | 234 | fits: 80 days to maturity, 234 available after Mar 8. | Jul 26 |
| Yellow Squash | Feb 15 | Mar 15–Mar 22 | 241 | two-plantings: Plant Mar 15 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Zinnias | Feb 1 | Mar 1–Mar 15 | 255 | two-plantings: Plant Mar 1 and again by Aug 29; both mature before Nov 11. | Aug 29 |
Month by month in Conroe
| Month | What to do |
|---|---|
| January | Start indoors: Broccoli (Jan 4), Brussel Sprouts (Jan 4), Cabbage (Jan 4), Lettuce (Jan 4), Sage (Jan 4), Swiss Chard (Jan 4), +8 more. Direct sow from: Arugula (Jan 4), Beets (Jan 4), Dill (Jan 4), Peas (Jan 4), Radish (Jan 4), Spinach (Jan 4), +1 more. Plant: Strawberry (Jan 25). |
| February | Start indoors: Bok Choy (Feb 1), Corn (Feb 1), Cosmos (Feb 1), Nasturtiums (Feb 1), Okra (Feb 1), Zinnias (Feb 1), +9 more. Direct sow from: Cilantro (Feb 1), Turnip (Feb 1), Carrots (Feb 8), Potatoes (Feb 15). Transplant from: Broccoli (Feb 1), Brussel Sprouts (Feb 1), Cabbage (Feb 1), Collards (Feb 1), Kale (Feb 1), Lettuce (Feb 1), +6 more. |
| March | Direct sow from: Sunflowers (Mar 1), Beans (Mar 8), Pole Beans (Mar 8). Transplant from: Cosmos (Mar 1), Lavender (Mar 1), Marigolds (Mar 1), Mint (Mar 1), Nasturtiums (Mar 1), Zinnias (Mar 1), +23 more. Last frost around March 1. |
| April | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| May | Succession plant lettuce and greens. Keep beds weeded and watered consistently. |
| June | Harvest regularly to encourage production. Monitor for pests and disease. |
| July | Last sowing dates: Butternut Squash (Jul 13), Pumpkin (Jul 13), Cantaloupe (Jul 21), Celery (Jul 21), Melons (Jul 21), Spaghetti Squash (Jul 23), +4 more. |
| August | Last sowing dates: Eggplant (Aug 5), Corn (Aug 7), Sunflowers (Aug 19), Brussel Sprouts (Aug 24), Pole Beans (Aug 24), Basil (Aug 29), +4 more. |
| September | Last sowing dates: Nasturtiums (Sep 3), Okra (Sep 3), Yellow Squash (Sep 3), Zucchini (Sep 3), Cauliflower (Sep 4), Beans (Sep 5), +10 more. |
| October | Last sowing dates: Collards (Oct 3), Scallions (Oct 3), Bok Choy (Oct 4), Lettuce (Oct 4), Kale (Oct 8), Kohlrabi (Oct 8), +4 more. |
| November | Direct sow from: Garlic (Nov 25). First frost around November 25. |
| December | Start indoors: Chives (Dec 7), Lavender (Dec 7), Onion (Dec 7), Rosemary (Dec 7), Celery (Dec 21), Collards (Dec 21), +5 more. Last sowing dates: Garlic (Dec 16). |
Frequently Asked Questions
What is the last frost date for Conroe, TX (ZIP 77306)?
The median last spring frost date for Conroe, TX (ZIP code 77306) is around March 1. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before February 6; one in ten it runs past March 29.
What is the first fall frost date in Conroe, TX?
The median first fall frost date for Conroe, TX is around November 25. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around November 2 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Conroe, TX?
The frost-free growing season in Conroe is about 269 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Conroe (269 frost-free days, a very long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Conroe, TX?
Conroe, TX is in USDA hardiness zone 9a (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.
When should I start tomatoes indoors in Conroe, TX?
Start tomatoes indoors Jan 25 and plant out Mar 15 in Conroe. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Conroe?
Two: plant Feb 1 and again by Oct 4; both mature before Dec 2.
When do I plant garlic in Conroe?
Nov 25 to Dec 16; it overwinters and is ready the following summer.
Can I get two tomato crops in Conroe?
Yes: plant out Mar 15 for a summer crop, and set out a second round of transplants by Jul 26 for a fall crop.
Which nearby ZIP has a longer season?
Conroe (ZIP 77304) has 276 frost-free days, 7 more than Conroe (ZIP 77306). See Conroe ZIP 77304 frost dates
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