Rockville Centre, NY planting zone & frost dates
Rockville Centre is in USDA hardiness zone 7b. The last spring frost usually comes around April 7 and the first fall frost around November 8, for a growing season of about 212 days.
Planting calendar for Rockville Centre
Dates are counted from the average last spring frost (April 7) using the typical timing recommended by U.S. extension services. Warm-season crops go out only after the danger of frost has passed and the soil has warmed.
| Crop | When |
|---|---|
| Tomatoes | Start seeds indoors: Feb 10 – Feb 24 Transplant outdoors: Apr 14 – Apr 21 |
| Peppers | Start seeds indoors: Jan 27 – Feb 10 Transplant outdoors: Apr 21 – Apr 28 |
| Eggplant | Start seeds indoors: Jan 27 – Feb 10 Transplant outdoors: Apr 21 – Apr 28 |
| Broccoli | Start seeds indoors: Jan 27 – Feb 10 Transplant outdoors: Mar 10 – Mar 24 |
| Cabbage | Start seeds indoors: Jan 27 – Feb 10 Transplant outdoors: Mar 10 – Mar 24 |
| Onions (sets) | Plant outdoors: Mar 10 – Mar 24 |
| Peas | Sow outdoors: Feb 24 – Mar 10 |
| Spinach | Sow outdoors: Feb 24 – Mar 10 |
| Lettuce | Sow outdoors: Mar 10 – Mar 24 |
| Carrots | Sow outdoors: Mar 10 – Mar 24 |
| Potatoes | Plant outdoors: Mar 10 – Mar 24 |
| Beans | Sow outdoors: Apr 14 – Apr 21 |
| Sweet corn | Sow outdoors: Apr 14 – Apr 21 |
| Cucumbers | Sow outdoors: Apr 14 – Apr 21 |
| Squash & zucchini | Sow outdoors: Apr 14 – Apr 21 |
| Basil | Start seeds indoors: Feb 24 – Mar 10 Transplant outdoors: Apr 14 – Apr 21 |
Fall garden: cool-season crops like lettuce, spinach and kale can be sown again around Sep 13 (8 weeks before the average first fall frost on Nov 8).
Useful for zone 7b gardens
- Seed starting kit with dome — to start seeds indoors before the last frost
- LED grow light for seedlings — stops leggy seedlings
- Frost cloth / plant covers — for late spring and early fall frosts
- Soil thermometer — warm-season crops need soil above 60°F
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Frost risk in detail
| 90% chance | 50% chance | 10% chance | |
|---|---|---|---|
| Last 32°F frost in spring is after | Mar 24 | Apr 7 | Apr 26 |
| First 32°F frost in fall is before | Nov 23 | Nov 8 | Oct 27 |
How to read it: in spring there is a 10% chance of a frost after April 26, so that is a safe date for tender plants. In fall there is a 10% chance of frost before October 27. A hard freeze (28°F) usually ends around March 27.
Hardiness zone by ZIP code in Rockville Centre
- 11570 zone 7b
- 11571 zone 7b
Nearby cities
- Oceanside zone 7b, last frost Apr 7
- Lynbrook zone 7b, last frost Apr 7
- Baldwin zone 7b, last frost Apr 7
- West Hempstead zone 7b, last frost Apr 2
- Hempstead zone 7b, last frost Apr 2
- Roosevelt zone 7b, last frost Apr 7
- Freeport zone 7b, last frost Apr 7
- Franklin Square zone 7b, last frost Apr 2
Questions
What growing zone is Rockville Centre, NY?
Rockville Centre is in USDA Plant Hardiness Zone 7b (average extreme winter low 5°F to 10°F), according to the USDA 2023 map.
When is the last frost in Rockville Centre?
The average last spring frost (32°F) in Rockville Centre is April 7. There is still a 10% chance of frost until April 26.
When can I plant tomatoes in Rockville Centre?
Transplant tomatoes outdoors 1–2 weeks after the average last frost: around Apr 14 – Apr 21. Start seeds indoors 6–8 weeks before the last frost.
Frost dates: NOAA U.S. Climate Normals 1991–2020, station Oceanside, NY (USC00306138), 3.1 km (1.9 mi) from the city center, elevation 4 m, based on 12 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.