Sunflowers reach full maturity in around three months, after which they're ready to harvest. You'll notice their colors start to brown, and the seeds grow heavy and thick and feel loose.

Harvest when seeds are plump and developed. Harvest when flower petals begin to dry out and fall off. Harvest when the back of [the] flower turns from green to yellow (if you are cutting the stem ...

Observe sunflower progression through the four growth phases. Wait for heads to reach the senesce stage, indicated by wilting of the showy ray petals and color changes of the back of the head ...

To harvest the seeds, cut the heads and place them in a paper sack, or leave a foot of stem attached and hang the heads upside down to dry. Cover the heads to prevent seeds from dropping as they dry.

She said: “You can harvest sunflower seeds to eat them as well as save them to plant in your garden next year. “You can also use them to feed birds and other wildlife through the winter.

So, to know when it’s harvest time, you have to check for mature flower heads. "After the flower blooms, it can take an additional 20 to 30 days for the seeds to mature," she says.

If you're growing sunflowers, find out what experts have to say about how long it takes for sunflowers to grow and when to harvest them.

Sunflowers are a favorite of kids of all ages. Not only are they fun to grow, but they're great to eat - that is - if you can beat the birds and squirrels to the seeds. Protect your harvest from ...

This characteristic, "petal drop", which in some varieties can occur within a day of the flowers' opening, ruins the appearance of sunflowers and damages their market value.

Sunflowers are usually planted April through July with harvest from late summer into fall. Most varieties bloom in about 50 days. They like a lot of water on a regular basis.