Growing sunflowers in Maryland is a great experience. Maryland’s climate and soil provide the perfect environment for sunflower growth, allowing these beautiful plants to thrive and bring a touch of sunshine to any garden.
Sunflowers require minimal maintenance, with the right conditions they will flower in abundance and bring bright bursts of color and beauty to the garden. Sunflower plants are known to attract bees and other beneficial insects, and their seeds are a great source of food for local wildlife. With the right care and attention, sunflowers in Maryland can be a wonderful addition to any garden or outdoor space.
Maryland’s climate and growing zones
Maryland has a humid subtropical climate, with hot and humid summers, and mild to cool winters. The state receives an average of 43 inches of rain a year and experiences four distinct seasons. Maryland has growing zones 5b through 8a.
Growing zone 5b is considered the “transition zone” of Maryland. This zone experiences cold winters and hot summers, but the temperatures rarely dip below -10 degrees Fahrenheit. This zone is suitable for many deciduous trees, shrubs, and perennials.
Growing zone 6a is slightly warmer than zone 5b, with cold winters and hot summers. The temperature rarely dips below -10 degrees Fahrenheit. This zone is suitable for many deciduous trees, shrubs, and perennials.
Growing zone 6b is slightly warmer than zone 6a, with cold winters and hot summers. While temperatures in this zone rarely dip below -5 degrees Fahrenheit, they can still be affected by occasional frosts. This zone is suitable for many deciduous trees, shrubs, and perennials.
Growing zone 7a is slightly warmer than zone 6b, with cold winters and hot summers. The temperature rarely dips below 0 degrees Fahrenheit. This zone is suitable for many deciduous trees, shrubs, and perennials.
Finally, growing zone 8a is the warmest zone in Maryland, with mild winters and hot summers. The temperature rarely dips below 10 degrees Fahrenheit. This zone is suitable for many deciduous trees, shrubs, and perennials.
Growing sunflowers in Maryland
Growing sunflowers in Maryland can be a rewarding experience; however, it can also be a challenge depending on the climate. Maryland typically has a moderate climate, with hot, humid summers and cold, wet winters.
In the warmer months, Maryland is an ideal place to grow sunflowers. The soil in Maryland is generally well-draining and high in organic matter, making it ideal for sunflower growth. Sunflowers prefer full sun, so make sure to plant your sunflowers in a sunny spot with lots of direct sunlight. You will also need to ensure that you provide plenty of water for your sunflowers, as they need a lot of moisture to thrive.
In colder months, however, growing sunflowers in Maryland can be a bit more challenging. Sunflowers are sensitive to cold temperatures and can be damaged by frost. To protect your sunflowers from the cold, you can cover them with a frost blanket or mulch when temperatures start to drop. Additionally, you can try to choose sunflower varieties that are more cold-hardy and can withstand lower temperatures.
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 Maryland
Sunflower seeds should be started indoors 4 weeks before your final frost date. In Maryland, the final frost dates are:
- Zone 5: Around April 30th
- Zone 6: Around April 21st
- zone 7: Around April 3rd
- zone 8: Around March 28th
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 5: Around April 1st
- Zone 6: Around March 24th
- zone 7: Around March 6th
- zone 8: Around February 27th
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 Maryland
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 Maryland
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!