Frost Dates for Bloomsburg, PA 17815
Last spring frost April 29 · First fall frost October 15 · 169 frost-free days · USDA Zone 6b
ZIP 17815 has about 29,800 people.
Moderate season: 169 frost-free days. Spring frost risk spans April 14–May 13 (29 days). Fall frost risk spans October 1–October 28 (27 days).
Frost probability for 17815
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | May 13 | April 29 | April 14 |
| Fall (first frost) | October 1 | October 15 | October 28 |
Dates come from NOAA 1971–2000 freeze probabilities at SELINSGROVE 2 S (44.9 km away); the 50% date is the median year.
Which crops fit a 169-day season in Bloomsburg
In Bloomsburg (169 frost-free days, a moderate 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 | Mar 25 | May 13–May 20 | 127 | fits: 80 days to maturity, 127 available after May 13. | Jun 15 |
| Pepper | Mar 18 | May 13–May 20 | 127 | fits: 75 days to maturity, 127 available after May 13. | Jun 20 |
| Lettuce | Mar 4 | Apr 1–Apr 8 | 204 | two-plantings: Plant Apr 1 and again by Aug 24; both mature before Oct 22. | Aug 24 |
| Carrots | — | Apr 8–Apr 15 | 211 | fits: 70 days to maturity, 211 available after Apr 8. | Aug 13 |
| Cucumber | Apr 8 | May 13–May 20 | 141 | two-plantings: Plant May 13 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Beans | — | May 6–May 20 | 155 | two-plantings: Plant May 6 and again by Jul 26; both mature before Oct 8. | Jul 26 |
| Peas | — | Mar 4–May 13 | 232 | fits: 65 days to maturity, 232 available after Mar 4. | Aug 4 |
| Zucchini | Apr 15 | May 13–May 20 | 141 | two-plantings: Plant May 13 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Onion | Feb 4 | Apr 1–Apr 15 | 204 | fits: 100 days to maturity, 204 available after Apr 1. | — |
| Spinach | — | Mar 4–Apr 22 | 246 | two-plantings: Plant Mar 4 and again by Sep 12; both mature before Nov 5. | Sep 12 |
| Kale | Feb 18 | Apr 1–Apr 15 | 218 | two-plantings: Plant Apr 1 and again by Aug 28; both mature before Nov 5. | Aug 28 |
| Broccoli | Mar 4 | Apr 1–Apr 15 | 204 | fits: 80 days to maturity, 204 available after Apr 1. | Jul 20 |
| Cabbage | Mar 4 | Apr 1–Apr 15 | 218 | fits: 70 days to maturity, 218 available after Apr 1. | Aug 13 |
| Radish | — | Mar 4–May 27 | 232 | two-plantings: Plant Mar 4 and again by Sep 13; both mature before Oct 22. | Sep 13 |
| Beets | — | Mar 4–May 27 | 232 | two-plantings: Plant Mar 4 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Potatoes | — | Apr 15–Apr 22 | 190 | fits: 90 days to maturity, 190 available after Apr 15. | — |
| Garlic | — | Oct 15 | 274 | overwinter: Plant Oct 15 to Nov 5; harvest the following summer. | Nov 5 |
| Strawberry | — | Mar 25–May 20 | 225 | perennial: A perennial: plant Mar 25; it fruits from the following year and keeps producing for several years. | — |
| Corn | Apr 1 | May 6–May 13 | 141 | fits: 75 days to maturity, 141 available after May 6. | Jun 27 |
| Pumpkin | Apr 15 | May 13–May 13 | 134 | fits: 100 days to maturity, 134 available after May 13. | Jun 2 |
| Cauliflower | Mar 18 | Apr 22–May 6 | 183 | fits: 75 days to maturity, 183 available after Apr 22. | Jul 25 |
| Swiss Chard | Mar 4 | Apr 15–Apr 15 | 190 | two-plantings: Plant Apr 15 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Arugula | — | Mar 4–May 27 | 246 | two-plantings: Plant Mar 4 and again by Sep 12; both mature before Nov 5. | Sep 12 |
| Brussel Sprouts | Mar 4 | Apr 1–Apr 15 | 218 | fits: 100 days to maturity, 218 available after Apr 1. | Jul 14 |
| Butternut Squash | Apr 15 | May 13–May 20 | 134 | fits: 100 days to maturity, 134 available after May 13. | Jun 2 |
| Eggplant | Mar 11 | May 13–May 20 | 127 | fits: 70 days to maturity, 127 available after May 13. | Jun 25 |
| Okra | Apr 1 | May 6–May 13 | 148 | two-plantings: Plant May 6 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Basil | Mar 25 | May 20–May 20 | 134 | two-plantings: Plant May 20 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Cilantro | — | Apr 1–Apr 22 | 204 | two-plantings: Plant Apr 1 and again by Aug 19; both mature before Oct 22. | Aug 19 |
| Parsley | Feb 18 | May 6–May 13 | 169 | fits: 70 days to maturity, 169 available after May 6. | Jul 30 |
| Celery | Feb 18 | May 6–May 20 | 169 | fits: 120 days to maturity, 169 available after May 6. | Jun 10 |
| Scallions | Feb 18 | Apr 1–Apr 15 | 218 | two-plantings: Plant Apr 1 and again by Aug 23; both mature before Nov 5. | Aug 23 |
| Turnip | — | Apr 1–Apr 15 | 218 | two-plantings: Plant Apr 1 and again by Sep 2; both mature before Nov 5. | Sep 2 |
| Kohlrabi | — | Mar 18–Apr 1 | 232 | two-plantings: Plant Mar 18 and again by Aug 28; both mature before Nov 5. | Aug 28 |
| Bok Choy | Apr 1 | Apr 22–Apr 29 | 183 | two-plantings: Plant Apr 22 and again by Aug 24; both mature before Oct 22. | Aug 24 |
| Collards | Feb 18 | Apr 1–Apr 15 | 218 | two-plantings: Plant Apr 1 and again by Aug 23; both mature before Nov 5. | Aug 23 |
| Cantaloupe | Apr 15 | May 13–May 20 | 127 | fits: 85 days to maturity, 127 available after May 13. | Jun 10 |
| Chives | Feb 4 | May 6–May 13 | 183 | fits: 90 days to maturity, 183 available after May 6. | — |
| Dill | — | Mar 4–May 27 | 232 | two-plantings: Plant Mar 4 and again by Aug 14; both mature before Oct 22. | Aug 14 |
| Oregano | Feb 18 | May 6–May 13 | 183 | fits: 80 days to maturity, 183 available after May 6. | — |
| Rosemary | Feb 4 | May 6–May 13 | 169 | fits: 80 days to maturity, 169 available after May 6. | — |
| Sage | Mar 4 | May 6–May 13 | 183 | fits: 75 days to maturity, 183 available after May 6. | — |
| Thyme | Feb 18 | May 6–May 13 | 183 | fits: 90 days to maturity, 183 available after May 6. | — |
| Calendula | Mar 18 | Apr 15–Apr 29 | 190 | two-plantings: Plant Apr 15 and again by Aug 19; both mature before Oct 22. | Aug 19 |
| Cosmos | Apr 1 | Apr 29–May 13 | 155 | two-plantings: Plant Apr 29 and again by Jul 19; both mature before Oct 1. | Jul 19 |
| Lavender | Feb 4 | Apr 29–May 13 | 190 | fits: 90 days to maturity, 190 available after Apr 29. | — |
| Marigolds | Mar 18 | Apr 29–May 6 | 155 | two-plantings: Plant Apr 29 and again by Jul 29; both mature before Oct 1. | Jul 29 |
| Melons | Apr 15 | May 13–May 20 | 127 | fits: 85 days to maturity, 127 available after May 13. | Jun 10 |
| Mint | — | Apr 29–May 13 | 190 | fits: 90 days to maturity, 190 available after Apr 29. | — |
| Nasturtiums | Apr 1 | Apr 29–May 6 | 155 | two-plantings: Plant Apr 29 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Pole Beans | — | May 6–May 20 | 148 | fits: 65 days to maturity, 148 available after May 6. | Jul 14 |
| Spaghetti Squash | Apr 15 | May 13–May 20 | 134 | fits: 90 days to maturity, 134 available after May 13. | Jun 12 |
| Sunflowers | — | Apr 29–May 13 | 155 | fits: 70 days to maturity, 155 available after Apr 29. | Jul 9 |
| Tomatillos | Mar 4 | May 6–May 13 | 134 | fits: 75 days to maturity, 134 available after May 6. | Jun 20 |
| Watermelon | Apr 15 | May 6–May 13 | 134 | fits: 80 days to maturity, 134 available after May 6. | Jun 15 |
| Yellow Squash | Apr 15 | May 13–May 20 | 141 | two-plantings: Plant May 13 and again by Jul 24; both mature before Oct 1. | Jul 24 |
| Zinnias | Apr 1 | Apr 29–May 13 | 155 | two-plantings: Plant Apr 29 and again by Jul 19; both mature before Oct 1. | Jul 19 |
Month by month in Bloomsburg
| Month | What to do |
|---|---|
| January | Plan your garden layout and order seeds. Research varieties suited to your frost dates. |
| February | Start indoors: Chives (Feb 4), Lavender (Feb 4), Onion (Feb 4), Rosemary (Feb 4), Celery (Feb 18), Collards (Feb 18), +5 more. |
| March | Start indoors: Broccoli (Mar 4), Brussel Sprouts (Mar 4), Cabbage (Mar 4), Lettuce (Mar 4), Sage (Mar 4), Swiss Chard (Mar 4), +8 more. Direct sow from: Arugula (Mar 4), Beets (Mar 4), Dill (Mar 4), Peas (Mar 4), Radish (Mar 4), Spinach (Mar 4), +1 more. Plant: Strawberry (Mar 25). |
| April | Start indoors: Bok Choy (Apr 1), Corn (Apr 1), Cosmos (Apr 1), Nasturtiums (Apr 1), Okra (Apr 1), Zinnias (Apr 1), +9 more. Direct sow from: Cilantro (Apr 1), Turnip (Apr 1), Carrots (Apr 8), Potatoes (Apr 15), Sunflowers (Apr 29). Transplant from: Broccoli (Apr 1), Brussel Sprouts (Apr 1), Cabbage (Apr 1), Collards (Apr 1), Kale (Apr 1), Lettuce (Apr 1), +12 more. Last frost around April 29. |
| May | Direct sow from: Beans (May 6), Pole Beans (May 6). Transplant from: Celery (May 6), Chives (May 6), Corn (May 6), Okra (May 6), Oregano (May 6), Parsley (May 6), +17 more. |
| June | Last sowing dates: Butternut Squash (Jun 2), Pumpkin (Jun 2), Cantaloupe (Jun 10), Celery (Jun 10), Melons (Jun 10), Spaghetti Squash (Jun 12), +6 more. |
| July | Last sowing dates: Sunflowers (Jul 9), Brussel Sprouts (Jul 14), Pole Beans (Jul 14), Basil (Jul 19), Cosmos (Jul 19), Cucumber (Jul 19), +10 more. |
| August | Last sowing dates: Peas (Aug 4), Cabbage (Aug 13), Carrots (Aug 13), Beets (Aug 14), Dill (Aug 14), Swiss Chard (Aug 14), +8 more. |
| September | Last sowing dates: Turnip (Sep 2), Arugula (Sep 12), Spinach (Sep 12), Radish (Sep 13). |
| October | Direct sow from: Garlic (Oct 15). First frost around October 15. |
| November | Last sowing dates: Garlic (Nov 5). |
| December | Clean up spent plants. Add compost to beds. Rest, review, and plan next year's garden. |
Frequently Asked Questions
What is the last frost date for Bloomsburg, PA (ZIP 17815)?
The median last spring frost date for Bloomsburg, PA (ZIP code 17815) is around April 29. 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 April 14; one in ten it runs past May 13.
What is the first fall frost date in Bloomsburg, PA?
The median first fall frost date for Bloomsburg, PA is around October 15. 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 October 1 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Bloomsburg, PA?
The frost-free growing season in Bloomsburg is about 169 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 Bloomsburg (169 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Bloomsburg, PA?
Bloomsburg, PA is in USDA hardiness zone 6b (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 Bloomsburg, PA?
Start tomatoes indoors Mar 25 and plant out May 13 in Bloomsburg. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Bloomsburg?
Two: plant Apr 1 and again by Aug 24; both mature before Oct 22.
When do I plant garlic in Bloomsburg?
Oct 15 to Nov 5; it overwinters and is ready the following summer.
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