Liquid feeds or fertilizers are a great way to nourish your plants, providing nutrients in a readily available form, so they’re quickly absorbed. Many plants benefit from liquid feeds to give them a boost during their growing period, particularly crops such as: tomatoes, peppers, eggplants, cucumbers, zucchinis, pumpkins and beans.
Instructions for Making Comfrey Liquid Feed (Ready to Use Undiluted)
- Wear gloves, cut comfrey down with shears or pruning clippers to about 2 inches (5 cm) above soil level. Start cutting from April, and ideally before plants flower.
- Collect leaves, chopping into small pieces if easier to handle. Let plants reach 24 inches (60 cm) tall before cutting again. This takes about six weeks. Cut up to four times a year until September.
- Weigh about 2 pounds (1 kilogram) of leaves using scales.
- Add leaves to 4 gallons (15 liters) of water. Leave for about six weeks. Anaerobic bacteria will break down the comfrey leaves giving off a strong and unpleasant smell, so it’s best to use container with a cover or lid to contain the smell.
- Strain. Use liquid undiluted. This liquid will smell strongly. Add residue of comfrey leaves to a compost heap. Don’t try to store this liquid as it will ferment and may explode (concentrated feed can be stored – see below).
- Use the comfrey solution as a potassium-rich liquid fertilizer to encourage flowers and fruit set. Use once a week for tomatoes after their first flowers set fruit.