Almost all plants will benefit from frequent, regular fertilizing or feeding. Although there are many good commercially produced organic and chemical plant foods, over-fertilization is a risk with chemical plant foods, and organic foods are often expensive. Making your own organic plant food is a cost-effective way to give your plants a balanced, natural organic food.
Add the ingredients to your bin or tub: four parts seed meal, 1/4 part finely ground agricultural lime, between 1/4 and 1/2 part gypsum, 1/2 part dolomitic lime, one part bone meal and 1/2 to one part kelp meal.
Mix the ingredients thoroughly with your hands or a small hand shovel.
Place the powered organic plant food in sealed containers or zip top bags to keep it dry.
Sprinkle a handful of the mixture on your 12" pots every six to eight weeks. Adjust the quantity to suit the size of the pot or outdoor plant. Because this fertilizer is organic, there is very little risk of over-fertilization. Alternately, mix the fertilizer with the top layer of soil.
Water the plant immediately after fertilization so it can begin taking nutrients further into the soil.