When to Plant Dahlias in New Jersey
In a typical New Jersey location, plant outdoors Apr 22 – May 6. Across the state, the outdoor planting window starts as early as Apr 2 in Atlantic City and as late as May 7 in Manville.
Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.
Dahlias Planting Dates by City
| City | Plant outdoors |
|---|---|
| Newark | Apr 11 – Apr 25 |
| Jersey City | Apr 11 – Apr 25 |
| Paterson | Apr 22 – May 6 |
| Elizabeth | Apr 9 – Apr 23 |
| Edison | Apr 22 – May 6 |
| Trenton | Apr 24 – May 8 |
| Toms River | Apr 30 – May 14 |
| Clifton | Apr 22 – May 6 |
| Camden | Apr 6 – Apr 20 |
| Brick | Apr 30 – May 14 |
| Passaic | Apr 10 – Apr 24 |
| Cherry Hill | Apr 22 – May 6 |
| Union City | Apr 6 – Apr 20 |
| Bayonne | Apr 9 – Apr 23 |
| Middletown | Apr 24 – May 8 |
| East Orange | Apr 11 – Apr 25 |
| North Bergen | Apr 6 – Apr 20 |
| Irvington | Apr 11 – Apr 25 |
| Vineland | Apr 18 – May 2 |
| South Vineland | May 1 – May 15 |
| Wayne | Apr 21 – May 5 |
| New Brunswick | Apr 22 – May 6 |
| Union | Apr 18 – May 2 |
| Piscataway | Apr 22 – May 6 |
| Jackson | May 5 – May 19 |
| Lakewood | Apr 30 – May 14 |
| Hoboken | Apr 6 – Apr 20 |
| West New York | Apr 6 – Apr 20 |
| Perth Amboy | Apr 22 – May 6 |
| Plainfield | Apr 18 – May 2 |
Showing the 30 most populous of 223 New Jersey cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all New Jersey cities.
Frequently Asked Questions
When should I plant dahlias in New Jersey?
In a typical New Jersey location, plant outdoors Apr 22 – May 6. Across the state, the outdoor planting window starts as early as Apr 2 in Atlantic City and as late as May 7 in Manville.
When is the last frost in New Jersey?
The average last spring frost in New Jersey ranges from March 26 in Atlantic City to April 30 in Manville, based on NOAA 1991–2020 climate normals.
How long do dahlias take to grow?
Dahlias typically take 90–120 days from planting to harvest. Plant tubers 1-3 weeks after last frost once soil is warm (60F+); very frost-sensitive.
Other Crops in New Jersey
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
When to plant dahlias in other states