Helianthus pumilus

The typical sunflower flourishes when it is exposed to plenty of light for the majority of the day. It can continue to bloom healthily even if there is a reduction in light for several hours. Accustomed to a surplus of sunlight in its natural, open setting, it can, however, experience less blooming if it gets too little sunlight, while an excess might result in the plant's color fading or wilting.

The common sunflower originates from climates where the average temperature typically fluctuates between 68 and 95℉ (20 to 35℃). These are the conditions in which it flourishes most. Altering the temperature to stay within this span, depending on the time of year, may potentially promote ideal growth.

When most of the blossoms on a Common sunflower have completely bloomed, it indicates it's the right time to resume fertilizing. Start the fertilizing process once again when the flowers are in their prime, typically once every three to four weeks depending on the weather conditions. Once the Common sunflower begins to produce fewer fresh blossoms, cease the fertilization as it becomes unnecessary when the plant is not capable of generating more blooms.

For repotting the Common sunflower, choose a pot with a diameter 1-2 inches bigger, making sure it has excellent drainage. Opt for a potting mix that drains well, and think about integrating perlite for additional drainage. Carry out the repotting in the spring or early summer, water it thoroughly and place it in a moderately shaded area at first.