Which plants do not like used coffee grounds?
In most cases, the grounds are too acidic to be used directly on soil, even for acid-loving plants like blueberries, azaleas and hollies. Coffee grounds inhibit the growth of some plants, including geranium, asparagus fern, Chinese mustard and Italian ryegrass.
What plants can I put coffee grounds on?
Your acid-loving plants like hydrangeas, rhododendrons, azaleas, lily of the valley, blueberries, carrots, and radishes can get a boost from fresh grounds. However, tomatoes do not like fresh coffee grounds; keep them out of that area of the garden.
What does Epsom salt do for ferns?
They help in chlorophyll production, healthy plant growth, and resistance against diseases and pest. Both of them are required if you want to grow Lush and Green Ferns.