Growing sunflowers in New Jersey is a great experience. With its temperate climate and ample sunshine, New Jersey is the perfect place to grow these stunning flowers. Sunflowers thrive in warm weather and require six to eight hours of direct sunlight each day, making New Jersey a great place to grow these beautiful plants.
Not only do sunflowers bring beauty to any garden, but they are also easy to care for and produce delightful blooms. Whether you want to bring some sunshine to your garden or are looking for a low-maintenance flower to brighten your home, growing sunflowers in New Jersey is a great option.
New Jersey climate and growing zones
New Jersey has four different growing zones, 6a, 6b, 7a, and 7b, that span the state. Zone 6a has an average yearly minimum temperature of -10 to -5°F, while zone 6b has an average yearly minimum temperature of -5 to 0°F. Both zones experience hot, humid summers, with temperatures reaching the mid-90s.
Zone 7a has an average yearly minimum temperature of 0 to 5°F and experiences cooler winters, with temperatures reaching the mid-20s. This zone also experiences hot, humid summers with temperatures reaching the mid-90s.
Finally, zone 7b has an average yearly minimum temperature of 5 to 10°F and experiences even milder winters, with temperatures reaching the mid-teens. Like the other zones, zone 7b experiences hot, humid summers, with temperatures reaching the mid-90s.
In general, all four zones experience mild winters and hot, humid summers, making them ideal for growing a variety of plants, fruits, and vegetables.
Growing sunflowers in New Jersey
Growing sunflowers in New Jersey can be a rewarding and challenging experience. New Jersey has a temperate climate, which means that temperatures vary greatly between the summer and winter months. In the summer months, temperatures can reach up to the mid-90s, with humidity levels being particularly high. This is great for sunflower growth as the heat and humidity can help to promote healthy plants and vibrant blooms.
In the winter months, temperatures can dip below freezing, with some areas experiencing snowfall. Although this can be challenging for growing sunflowers, there are ways to adapt to the cold climate. For example, it is important to select sunflower varieties that are cold-tolerant, as some varieties can better withstand colder temperatures. It is also essential to provide adequate protection to sunflowers during the winter months, such as covering the plants with a frost blanket to help insulate them from the cold.
Some of my favorite varieties of sunflower include:
- Mammoth Grey Stripe Sunflower (Helianthus annuus) – 75-100 days to maturity
- Teddy Bear Sunflower (Helianthus annuus) – 60-90 days to maturity
- Red Sun (Helianthus annuus) – 65-95 days to maturity
- Autumn Beauty Sunflower (Helianthus annuus) – 75-90 days to maturity
- Lemon Queen Sunflower (Helianthus annuus) – 75-95 days to maturity
- Velvet Queen Sunflower (Helianthus annuus) – 90-110 days to maturity
- Dwarf Sunspot Sunflower (Helianthus annuus) – 60-90 days to maturity
- Giant Sungold Sunflower (Helianthus annuus) – 85-110 days to maturity
- Evening Sun Sunflower (Helianthus annuus) – 75-95 days to maturity
- Sundance Kid Sunflower (Helianthus annuus) – 75-95 days to maturity
When to start sunflowers indoors in New Jersey
Sunflower seeds should be started indoors 4 weeks before your final frost date. In New Jersey, the final frost dates are:
- Zone 6: Around April 21st
- zone 7: Around April 3rd
You should also consider the size of the variety of sunflower you are planting, as shorter varieties can be planted later and taller varieties will need to be started a week or two earlier. Sunflowers should be started indoors:
- Zone 6: Around March 24th
- zone 7: Around March 6th
Starting sunflowers from seed is a relatively easy process that can be done both indoors and outdoors. To begin, you will need to purchase sunflower seeds from a garden center or online. When selecting seeds, make sure to look for the desired variety you want to grow. Once you have your seeds, you can choose to start them indoors 4 weeks before the last frost date for your region.
Fill a seed tray with starter soil and moisten it with a spray bottle. Place your seeds on top of the soil, cover them lightly with starter soil, and water them gently. Place the tray in a warm and sunny spot, and keep the soil moist. Once your plants have grown 2-3 sets of leaves, you can transplant them outdoors.
Planting sunflowers outside in New Jersey
Sunflower seeds should be planted outdoors after the last average frost date for your area. Planting sunflower seeds too early can result in poor germination and seedling growth and potentially death if there’s a hard freeze.
When planting outdoors, make sure the area has plenty of sunshine and well-draining soil. Dig a hole that is twice the size of the root ball, and fill the hole with compost or aged manure. Place the seedling in the hole and backfill with soil, then water deeply.
For the remainder of the sunflower’s life, make sure to keep the soil moist and fertilize regularly. With proper care, you should have beautiful sunflowers in no time!
When to harvest sunflower seeds in New Jersey
When sunflower seeds are ready to be harvested, the back of the flower head will be dry and start to turn brown. The individual seeds will be dry and firm. The green husks surrounding the seeds will have turned yellow or white and begun to dry out. To check if the seeds are ready to be harvested, lightly pinch the seed head between your thumb and forefinger. If the husks break open easily, the seeds are ready to harvest.
Harvesting sunflower seeds is easy. Cut the flower head off the stem and spread it out on a clean surface. To remove the seeds, use your hands to rub the flower head and release the seeds. Collect the seeds in a large bowl or container. Once the seeds are harvested, store them in an airtight container in a cool, dry place. Make sure the container is well sealed to keep the seeds from going bad. Sunflower seeds can last for up to a year if stored properly.
Sunflower seeds are delicious and nutritious snack food. They can be eaten raw, toasted, or sprouted. Sunflower seeds are also used in salads, cereals, granola, and energy bars. They are loaded with essential vitamins and minerals like Vitamin E, phosphorus, magnesium, and zinc. Sunflower seeds can also be used to make sunflower seed butter, which is a great alternative to peanut butter.
In addition to being a healthy snack, sunflower seeds are also used to make birdseed. You can leave your sunflowers intact outside well after the flowers have died to give your local birds a tasty snack!