The weather has been warm and we’re now past the last expected frost date of the season here in New Jersey and you might be wondering…can I plant tomato seedlings outdoors yet?
The correct answer is…maybe, but it’s probably a good idea to wait another week or so if you want an early start.
Cold weather is unexpected but possible. Keep an eye on the 10-day forecast to ensure no cold spells that would kill your plants are coming this way.
Our current ten day forecast in New Jersey (2023) calls for highs in the 60s and low 70s and lows in the low 40s, so maybe you can keep them indoors another week.
Tomatoes are one of the most popular and beloved garden plants, and for good reason. For other crops, check the zone seven planting guidelines anywhere on the internet for guidance.
Here’s what you need to know.
Tomatoes are warm-season crops, meaning they need warm soil and air temperatures to grow and produce fruit. In New Jersey and Zone 7, the ideal time to plant tomato seedlings outdoors is after the last frost date has passed. This is typically in mid to late May, but it can vary slightly depending on your specific location and weather conditions.
To determine the last frost date in your area, you can check online resources or ask your local gardening center. It’s important to wait until after the last frost date because frost can damage or kill tomato plants. If you’re eager to get started earlier in the season, you can start your tomato seedlings indoors and then transplant them outdoors after the last frost date has passed.
Now that you know when to plant your tomato seedlings outdoors, here are some tips to help ensure success:
Choose a sunny location: Tomatoes need at least six hours of direct sunlight per day to thrive, so choose a location that receives plenty of sunlight.
Prepare the soil: Tomato plants prefer well-draining soil that’s rich in organic matter. Before planting, loosen the soil and add compost or other organic matter to improve its quality.
Plant at the right depth: When planting your tomato seedlings, bury them deep enough so that only the top two sets of leaves are above the soil. This will encourage strong root growth and help your plants withstand wind and weather.
Provide support: Tomato plants can grow quite tall and heavy, so it’s important to provide support such as stakes or cages to keep them upright and prevent them from collapsing under the weight of their fruit.
Water consistently: Tomatoes need consistent moisture to thrive, so water them regularly, especially during hot and dry weather. Avoid getting water on the leaves, as this can promote disease.
By following these tips and planting your tomato seedlings at the right time, you can enjoy a bountiful harvest of fresh, delicious tomatoes all summer long.