How to grow sunflowers in a pot

Container grown sunflowers are a great way to bring color from the garden and landscape onto your patio, porch, or even into your home. Although most potted sunflowers are dwarf varieties, growing to less than 4 feet, mammoth varieties can also be grown in containers; however, they will require a larger pot.

About Potted Sunflowers

Cultivars that grow to 2 feet (½ meter) or less should be planted in a 10- to 12-inch (25-30 cm.) diameter planter while those that grow 4 feet (1 m.) or taller require a larger 3- to 5-gallon (11-19 liter) or even larger pot.

Most sunflowers are annuals, meaning they only last for one growing season. However, with proper care, your potted sunflower should live for several months, and you may be able to grow a new one from its seeds.

If you want a longer flowering season, plan to deadhead sunflowers. Cutting back the spent blooms encourages new flower shoots to grow. If you‘d prefer to have sunflower seeds for roasting or future planting, do not cut the spent sunflower heads until they are dry and brown.

It is recommended that you only soak most seeds for 12 to 24 hours and no more than 48 hours. After soaking your seeds, they can be planted as directed. The benefit of soaking seeds before planting is that your germination time will be reduced, which means you can have happy, growing plants faster.

The seeds of sunflower can be planted. It needs to be noted which end is downward. In order to ensure better growth, when planting, it is better to put the tip part downward and the large part upward, because the tip part will grow roots so as to tie the soil tightly, and then the growth will be more smooth.

Select a sunflower variety.

It is not possible to grow plants from roasted sunflower seeds, but you can grow it from sunflowers in bird seed, as long as the outer shell is present.

The primary reasons for failed germination are: Seeds get eaten – mice, voles, birds, and wireworms all eat seeds. Check to see that the seed is still in the soil. Seeds rot – planted too deeply, over-watered, or in cold weather, our untreated seeds may simply rot.

Time It Right

Plant sunflowers in late spring, once the ground is nice and warm. Most sunflowers germinate when soil has reached 70 to 85 degrees F. The best time to plant sunflowers is just before the soil reaches this temperature. Look for a ground temp of between 60 to 70 degrees.

Sunflower seeds do not require light for germination. However, when grown indoors in pots, the plastic wrap is removed at the first sign of germination and the uncovered pots are placed in bright, indirect light.

Depending on the variety, sunflowers will mature and develop seeds in 80 to 120 days. Sow a new row every 2 to 3 weeks to enjoy continuous blooms until the first frost.

Sunflowers grown as annuals die after producing their flower heads go to seed. They do not grow and bloom again. These are usually the varieties cultivated for their large size, showy flower heads and edible seeds.

Sow sunflowers in full sun in moderately fertile, well-draining soil. Water them with one inch (2.5 cm.) of water per week depending upon rainfall. Check the soil prior to watering.

Sunflowers need full sun; see 6-8 hours of direct sunlight per day – the more the better if you are trying to grow them to their maximum potential. Choose a well-drained location, and prepare your soil by digging an area of about 2-3 feet in circumference to a depth of about 2 feet.

Sunflowers may begin dying if there’s a lack of sunlight.

In such situations, you will need to move the plants outside if you’re growing them indoors. They usually need at least 8-10 hours of bright sunlight to develop large showy flowers.

Sunflowers are sun worshipers that grow best in spots that get six to eight hours of direct sun per day. They have long tap roots that need to go several feet into the ground, so sunflower plants prefer loose, well-drained, somewhat alkaline soil with a pH of 6.0 to 7.5.

Nature’s top pollinators are bees, and sunflowers‘ showy outer petals draw many different species, including honeybees and bumble bees, to the high-quality nectar. The pretty flowers also bring birds to your yard to eat the sunflower seeds.

3 ways you can keep using your sunflower after it’s died

When it has run the course of its’ life, dried sunflower heads make tasty bird feeders in the winter. Harvest and roast the seeds and sprinkle on salads or enjoy as a healthy, tasty snack.

When it comes to the fertilization of sunflowers, nitrogen is extremely important. Fertilization of sunflowers with added nitrogen will contribute to the overall green growth of the plant. Fertilizing a sunflower with nitrogen will increase the height of the plant too.

Once the plant is past the seedling stage, sunflowers are good, sun-tolerant plants that require minimal care. Coffee grounds are highly acidic, they note, so they should be reserved for acid-loving plants like azaleas and blueberries. fertilizer for your sunflowers.