Grow sunflowers as solitary plants
Sunflowers are heavy eaters whose roots dig deep into the earth. The plants cannot spread as well in the pot or tub. They therefore stay much smaller than sunflowers that you plant in the garden.
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Only one sunflower should grow per pot so that the plants don't rob each other of space and nutrients.
However, you should always sow several seeds at once, as not all kernels will germinate. If several seeds have sprouted, the weaker plants are cut off.
The right pot
The larger and, above all, the deeper the pot, the larger the sunflowers will grow. Balcony boxes (€ 106.25 at Amazon *) are only suitable for growing sunflowers. Later, the plants have to be transplanted into individual pots or tubs.
Pots with a diameter of 30 centimeters are ideal. Heavy buckets are more stable. They don't tip over as quickly when the sunflower is fully grown.
How to prepare the planters:
- Clean pots well
- Pierce the drainage hole, if not available
- Fill in nutritious potting soil
- Place on coaster
Prefer sunflowers for the tub
To give preference to sunflowers, you can use window boxes or small pots.
Fill them with potting soil and insert the seeds about two centimeters into the soil. Always sow three to five seeds in a pot or in a seed hole. Keep the soil moist.
As soon as the plants are large enough, they are separated.
Place the sunflowers in the pot as sunny as possible
Place the buckets or pots as sunny as possible. South balconies or terraces are ideal.
Water and fertilize the sunflowers frequently to allow them to develop plenty of flowers.
Tips & Tricks
Sunflowers intended for the garden can also be preferred in the pot. Flowers that have been brought forward have a big advantage over plants that are sown outdoors at the end of April.
