Are coffee grounds good for celery?
Written by
Michael Sullivan
Reviewed by
Prof. Martin Thorne, Ph.D.Coffee Grounds for Celery. Used rightly, coffee grounds are an excellent fertilizer for celery. They contain a good proportion of nitrogen and help to lighten and mellow the soil. Mischievous proportions, on the other hand, may impart too much acidity to the soil.
Compost Integration
- Mix grounds at 25% volume in compost piles
- Balance with brown materials like dried leaves
- Turn pile weekly for even decomposition
Soil Amendment
- Work 1/2 inch (1.3 cm) grounds into topsoil before planting
- Combine with crushed eggshells to counter acidity
- Limit to quarterly applications
Monitor the soil pH closely if you use grounds, testing it monthly with pH strips. Celery enjoys a soil pH of 6.0 to 6.8. If the pH ever drops below 6.0, apply lime. You can also marry your grounds to wood ash to neutralize the acidity. Do not use more than 2 cups per plant per month.
Your used coffee grounds are beneficial, and can be combined with other fertilisers: Mix with vegetable fertilisers such as alfalfa meal, this mellowes the time release of nitrogen; apply with rock phosphate, and your soil is restored of phosphorus; make a tea by soaking in water (1 cup of grounds to a gallon/240ml/4l), and apply once a week when your plants are on a growing rampage.
Be aware of the symptoms of over-application. Stressed plants will begin to show yellowing leaf edges from acidity. If you observe stunted growth, the soil may likely be lacking some essential nutrients. If you see the signs, then immediately flush out the soil with water. When you replant, consider using fewer coffee grounds.
When used correctly, coffee grounds can sustainably support the growth of celery. Use them sparingly at first and observe the plant's response. I would recommend demonstrating this technique to your class based on the results of the soil tests. Not only does this practice reduce waste, but it can also improve productivity in the garden.
Read the full article: How to Grow Celery: Expert Tips for Success
