In short, potassium helps plants grown for their fruiting and flowering, including rose bushes and fruit trees, rather than plants grown for their foliage, such as spinach, lettuce and Swiss chard. Banana peels are good fertilizer because of what they do not contain.

What vegetables benefit from potassium?

• Bananas, oranges, cantaloupe, honeydew, apricots, grapefruit (some dried fruits, such as prunes, raisins, and dates, are also high in potassium)
• Cooked spinach.
• Cooked broccoli.
• Potatoes.
• Sweet potatoes.
• Mushrooms.
• Peas.
• Cucumbers.

Does potassium help plants flower?

Nitrogen is an integral part of chlorophyll manufacture through photosynthesis, stimulates green leafy growth and promotes fruit and seed development; Phosphorus supports the transfer of energy throughout the plant for root development and flowering; Potassium is essential for photosynthesis and regulates many …