Frost Dates for Lansdowne, PA 19050
Last spring frost April 6 · First fall frost November 4 · 212 frost-free days · USDA Zone 7b
ZIP 19050 has about 29,400 people.
Long season: 212 frost-free days. Spring frost risk spans March 24–April 19 (26 days). Fall frost risk spans October 20–November 18 (29 days).
Frost probability for 19050
| Frost | 10% | 50% | 90% |
|---|---|---|---|
| Spring (last frost) | April 19 | April 6 | March 24 |
| Fall (first frost) | October 20 | November 4 | November 18 |
Dates come from NOAA 1971–2000 freeze probabilities at PHILA INTL AP (7.8 km away); the 50% date is the median year.
Which crops fit a 212-day season in Lansdowne
In Lansdowne (212 frost-free days, a 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 | Mar 2 | Apr 20–Apr 27 | 170 | fits: 80 days to maturity, 170 available after Apr 20. | Jul 5 |
| Pepper | Feb 23 | Apr 20–Apr 27 | 170 | fits: 75 days to maturity, 170 available after Apr 20. | Jul 10 |
| Lettuce | Feb 9 | Mar 9–Mar 16 | 247 | two-plantings: Plant Mar 9 and again by Sep 13; both mature before Nov 11. | Sep 13 |
| Carrots | — | Mar 16–Mar 23 | 254 | fits: 70 days to maturity, 254 available after Mar 16. | Sep 2 |
| Cucumber | Mar 16 | Apr 20–Apr 27 | 184 | two-plantings: Plant Apr 20 and again by Aug 8; both mature before Oct 21. | Aug 8 |
| Beans | — | Apr 13–Apr 27 | 198 | two-plantings: Plant Apr 13 and again by Aug 15; both mature before Oct 28. | Aug 15 |
| Peas | — | Feb 9–Apr 20 | 275 | fits: 65 days to maturity, 275 available after Feb 9. | Aug 24 |
| Zucchini | Mar 23 | Apr 20–Apr 27 | 184 | two-plantings: Plant Apr 20 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Onion | Jan 12 | Mar 9–Mar 23 | 247 | fits: 100 days to maturity, 247 available after Mar 9. | — |
| Spinach | — | Feb 9–Mar 30 | 289 | two-plantings: Plant Feb 9 and again by Oct 2; both mature before Nov 25. | Oct 2 |
| Kale | Jan 26 | Mar 9–Mar 23 | 261 | two-plantings: Plant Mar 9 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Broccoli | Feb 9 | Mar 9–Mar 23 | 247 | fits: 80 days to maturity, 247 available after Mar 9. | Aug 9 |
| Cabbage | Feb 9 | Mar 9–Mar 23 | 261 | fits: 70 days to maturity, 261 available after Mar 9. | Sep 2 |
| Radish | — | Feb 9–May 4 | 275 | two-plantings: Plant Feb 9 and again by Oct 3; both mature before Nov 11. | Oct 3 |
| Beets | — | Feb 9–May 4 | 275 | two-plantings: Plant Feb 9 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Potatoes | — | Mar 23–Mar 30 | 233 | fits: 90 days to maturity, 233 available after Mar 23. | — |
| Garlic | — | Nov 4 | 317 | overwinter: Plant Nov 4 to Nov 25; harvest the following summer. | Nov 25 |
| Strawberry | — | Mar 2–Apr 27 | 268 | perennial: A perennial: plant Mar 2; it fruits from the following year and keeps producing for several years. | — |
| Corn | Mar 9 | Apr 13–Apr 20 | 184 | fits: 75 days to maturity, 184 available after Apr 13. | Jul 17 |
| Pumpkin | Mar 23 | Apr 20–Apr 20 | 177 | fits: 100 days to maturity, 177 available after Apr 20. | Jun 22 |
| Cauliflower | Feb 23 | Mar 30–Apr 13 | 226 | fits: 75 days to maturity, 226 available after Mar 30. | Aug 14 |
| Swiss Chard | Feb 9 | Mar 23–Mar 23 | 233 | two-plantings: Plant Mar 23 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Arugula | — | Feb 9–May 4 | 289 | two-plantings: Plant Feb 9 and again by Oct 2; both mature before Nov 25. | Oct 2 |
| Brussel Sprouts | Feb 9 | Mar 9–Mar 23 | 261 | fits: 100 days to maturity, 261 available after Mar 9. | Aug 3 |
| Butternut Squash | Mar 23 | Apr 20–Apr 27 | 177 | fits: 100 days to maturity, 177 available after Apr 20. | Jun 22 |
| Eggplant | Feb 16 | Apr 20–Apr 27 | 170 | fits: 70 days to maturity, 170 available after Apr 20. | Jul 15 |
| Okra | Mar 9 | Apr 13–Apr 20 | 191 | two-plantings: Plant Apr 13 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Basil | Mar 2 | Apr 27–Apr 27 | 177 | two-plantings: Plant Apr 27 and again by Aug 8; both mature before Oct 21. | Aug 8 |
| Cilantro | — | Mar 9–Mar 30 | 247 | two-plantings: Plant Mar 9 and again by Sep 8; both mature before Nov 11. | Sep 8 |
| Parsley | Jan 26 | Apr 13–Apr 20 | 212 | fits: 70 days to maturity, 212 available after Apr 13. | Aug 19 |
| Celery | Jan 26 | Apr 13–Apr 27 | 212 | fits: 120 days to maturity, 212 available after Apr 13. | Jun 30 |
| Scallions | Jan 26 | Mar 9–Mar 23 | 261 | two-plantings: Plant Mar 9 and again by Sep 12; both mature before Nov 25. | Sep 12 |
| Turnip | — | Mar 9–Mar 23 | 261 | two-plantings: Plant Mar 9 and again by Sep 22; both mature before Nov 25. | Sep 22 |
| Kohlrabi | — | Feb 23–Mar 9 | 275 | two-plantings: Plant Feb 23 and again by Sep 17; both mature before Nov 25. | Sep 17 |
| Bok Choy | Mar 9 | Mar 30–Apr 6 | 226 | two-plantings: Plant Mar 30 and again by Sep 13; both mature before Nov 11. | Sep 13 |
| Collards | Jan 26 | Mar 9–Mar 23 | 261 | two-plantings: Plant Mar 9 and again by Sep 12; both mature before Nov 25. | Sep 12 |
| Cantaloupe | Mar 23 | Apr 20–Apr 27 | 170 | fits: 85 days to maturity, 170 available after Apr 20. | Jun 30 |
| Chives | Jan 12 | Apr 13–Apr 20 | 226 | fits: 90 days to maturity, 226 available after Apr 13. | — |
| Dill | — | Feb 9–May 4 | 275 | two-plantings: Plant Feb 9 and again by Sep 3; both mature before Nov 11. | Sep 3 |
| Oregano | Jan 26 | Apr 13–Apr 20 | 226 | fits: 80 days to maturity, 226 available after Apr 13. | — |
| Rosemary | Jan 12 | Apr 13–Apr 20 | 212 | fits: 80 days to maturity, 212 available after Apr 13. | — |
| Sage | Feb 9 | Apr 13–Apr 20 | 226 | fits: 75 days to maturity, 226 available after Apr 13. | — |
| Thyme | Jan 26 | Apr 13–Apr 20 | 226 | fits: 90 days to maturity, 226 available after Apr 13. | — |
| Calendula | Feb 23 | Mar 23–Apr 6 | 233 | two-plantings: Plant Mar 23 and again by Sep 8; both mature before Nov 11. | Sep 8 |
| Cosmos | Mar 9 | Apr 6–Apr 20 | 198 | two-plantings: Plant Apr 6 and again by Aug 8; both mature before Oct 21. | Aug 8 |
| Lavender | Jan 12 | Apr 6–Apr 20 | 233 | fits: 90 days to maturity, 233 available after Apr 6. | — |
| Marigolds | Feb 23 | Apr 6–Apr 13 | 198 | two-plantings: Plant Apr 6 and again by Aug 18; both mature before Oct 21. | Aug 18 |
| Melons | Mar 23 | Apr 20–Apr 27 | 170 | fits: 85 days to maturity, 170 available after Apr 20. | Jun 30 |
| Mint | — | Apr 6–Apr 20 | 233 | fits: 90 days to maturity, 233 available after Apr 6. | — |
| Nasturtiums | Mar 9 | Apr 6–Apr 13 | 198 | two-plantings: Plant Apr 6 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Pole Beans | — | Apr 13–Apr 27 | 191 | fits: 65 days to maturity, 191 available after Apr 13. | Aug 3 |
| Spaghetti Squash | Mar 23 | Apr 20–Apr 27 | 177 | fits: 90 days to maturity, 177 available after Apr 20. | Jul 2 |
| Sunflowers | — | Apr 6–Apr 20 | 198 | fits: 70 days to maturity, 198 available after Apr 6. | Jul 29 |
| Tomatillos | Feb 9 | Apr 13–Apr 20 | 177 | fits: 75 days to maturity, 177 available after Apr 13. | Jul 10 |
| Watermelon | Mar 23 | Apr 13–Apr 20 | 177 | fits: 80 days to maturity, 177 available after Apr 13. | Jul 5 |
| Yellow Squash | Mar 23 | Apr 20–Apr 27 | 184 | two-plantings: Plant Apr 20 and again by Aug 13; both mature before Oct 21. | Aug 13 |
| Zinnias | Mar 9 | Apr 6–Apr 20 | 198 | two-plantings: Plant Apr 6 and again by Aug 8; both mature before Oct 21. | Aug 8 |
Month by month in Lansdowne
| Month | What to do |
|---|---|
| January | Start indoors: Chives (Jan 12), Lavender (Jan 12), Onion (Jan 12), Rosemary (Jan 12), Celery (Jan 26), Collards (Jan 26), +5 more. |
| February | Start indoors: Broccoli (Feb 9), Brussel Sprouts (Feb 9), Cabbage (Feb 9), Lettuce (Feb 9), Sage (Feb 9), Swiss Chard (Feb 9), +6 more. Direct sow from: Arugula (Feb 9), Beets (Feb 9), Dill (Feb 9), Peas (Feb 9), Radish (Feb 9), Spinach (Feb 9), +1 more. |
| March | Start indoors: Basil (Mar 2), Tomato (Mar 2), Bok Choy (Mar 9), Corn (Mar 9), Cosmos (Mar 9), Nasturtiums (Mar 9), +11 more. Direct sow from: Cilantro (Mar 9), Turnip (Mar 9), Carrots (Mar 16), Potatoes (Mar 23). Transplant from: Broccoli (Mar 9), Brussel Sprouts (Mar 9), Cabbage (Mar 9), Collards (Mar 9), Kale (Mar 9), Lettuce (Mar 9), +6 more. Plant: Strawberry (Mar 2). |
| April | Direct sow from: Sunflowers (Apr 6), Beans (Apr 13), Pole Beans (Apr 13). Transplant from: Cosmos (Apr 6), Lavender (Apr 6), Marigolds (Apr 6), Mint (Apr 6), Nasturtiums (Apr 6), Zinnias (Apr 6), +23 more. Last frost around April 6. |
| May | Frost has passed. Transplant tomatoes, peppers, and basil outdoors. Direct sow beans, cucumbers, squash, and zucchini. |
| June | Last sowing dates: Butternut Squash (Jun 22), Pumpkin (Jun 22), Cantaloupe (Jun 30), Celery (Jun 30), Melons (Jun 30). |
| July | Last sowing dates: Spaghetti Squash (Jul 2), Tomato (Jul 5), Watermelon (Jul 5), Pepper (Jul 10), Tomatillos (Jul 10), Eggplant (Jul 15), +2 more. |
| August | Last sowing dates: Brussel Sprouts (Aug 3), Pole Beans (Aug 3), Basil (Aug 8), Cosmos (Aug 8), Cucumber (Aug 8), Zinnias (Aug 8), +10 more. |
| September | Last sowing dates: Cabbage (Sep 2), Carrots (Sep 2), Beets (Sep 3), Dill (Sep 3), Swiss Chard (Sep 3), Calendula (Sep 8), +8 more. |
| October | Last sowing dates: Arugula (Oct 2), Spinach (Oct 2), Radish (Oct 3). |
| November | Direct sow from: Garlic (Nov 4). First frost around November 4. Last sowing dates: Garlic (Nov 25). |
| December | Harvest remaining cold-hardy crops: kale, carrots, and beets. Plant garlic bulbs for next year. |
Frequently Asked Questions
What is the last frost date for Lansdowne, PA (ZIP 19050)?
The median last spring frost date for Lansdowne, PA (ZIP code 19050) is around April 6. 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 March 24; one in ten it runs past April 19.
What is the first fall frost date in Lansdowne, PA?
The median first fall frost date for Lansdowne, PA is around November 4. 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 20 in the earliest one-in-ten years, so cover tomatoes and peppers from then.
How long is the growing season in Lansdowne, PA?
The frost-free growing season in Lansdowne is about 212 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 Lansdowne (212 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.
What USDA hardiness zone is Lansdowne, PA?
Lansdowne, PA is in USDA hardiness zone 7b (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 Lansdowne, PA?
Start tomatoes indoors Mar 2 and plant out Apr 20 in Lansdowne. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.
How many plantings of lettuce fit in Lansdowne?
Two: plant Mar 9 and again by Sep 13; both mature before Nov 11.
When do I plant garlic in Lansdowne?
Nov 4 to Nov 25; it overwinters and is ready the following summer.
Can I get two tomato crops in Lansdowne?
Yes: plant out Apr 20 for a summer crop, and set out a second round of transplants by Jul 5 for a fall crop.
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