Plants can be grown in pots or directly in the ground. They can be started off indoors in the early spring and will grow well on a window sill for a while. Once the risk of frost has passed, seeds can be planted outside.
The compost should be 1 cm below the rim. Compost will make a good pot. If you do n’t have a plant pot, consider using yogurt pots, tin cans, plastic cups, old bottles, and toilet rolls which can be planted into bigger pots or into ground soil later. If you want the compost to be moist, you need to sow one seed per pot. You should label your pots if you are growing different types of sunflowers.
If you sow your seeds in a warm environment, you should see the seeds start to shoot within a week to ten days. Supporting them with a cane will keep them upright until they are big enough to support themselves.
Sunflowers should be introduced to the outside world slowly, with a couple of hours outside during the day before returning them inside overnight, to prepare them for being outside permanently.
Reading: How to grow sunflowers
After the threat of frost has passed, sowing seeds outdoors is best done. In pots, seeds can be sown directly into the garden border. If you are sowing your sunflowers outdoors, be aware that some animals have a good appetite for baby sunflowers.
There are things you can do to protect your sunflowers. If you want to protect your sunflowers from being eaten, cut a plastic milk bottle in half, remove the base and put it over the top. Throwing gravel or egg shells around the base of your sunflowers makes it difficult for slugs and snails to move on. In garden centres, you can buy copper tape or bands.
Watching your plant grow.
Sunflowers like to be kept moist. If you want to get the best exposure to the sun, choose a sunny spot. Make sure you water it regularly, but do n’t let it get water logged.
When sunflowers are established you can feed them with lawn feed or tomato feed but be careful not to get this on the leaves as it can cause the plants to rot. If your plants look like they need help, they can be tied to canes with string or ribbon if they are not tight enough to cut into the stem.
Further information is available.
Dobbies Garden Centres has short films about growing sunflowers.
You can find a printed version of this page in the resources area of the website.
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