here is a couple more ideas for you for household and cheap ideas....
Fill a five-gallon bucket about 1/3 full with fallen tree leaves(oak works best, but most will do great even cannabis leaves); add water almost to the top of the bucket. Place the bucket in a sunny spot, ideally on a paved surface, and let it steep for about a week or until the water takes on the color of iced tea. Or try this speedy version of the same recipe: add boiling water to the leaves, and use the solution once it's cooled. Pour the leaf "tea" around the base of your plants, and in no time they will perk up. The leftover oak leaves make a dandy mulch, especially when shredded first.
Add 1 pint of 5 percent white distilled vinegar to 2 gallons of water, and stir. Pour the solution around the base of plants every three months during the growing season.
Vinegar is also great for giving houseplants a boost. A simple solution of 1 tablespoon apple vinegar to 1 gallon of water will help houseplants green up, especially if the tap water is alkaline. Vinegar does more than lower the pH; it's also loaded with as many as 50 trace minerals.