A simple plant food can be made by using leaves, stems, and flowers of plants. Individual or mixes can be made for particular scenarios (example: wormwood for rust on currant bushes). It is a thrifty way of using what the garden already provides. Probably the most common and well known is comfrey, however nettle feed is considered the most all-round, effective feed. The plant material is placed in a vessel of water at around half water & half chopped plant material. A bucket is ideal, although bigger gardens may require a few buckets or a larger vessel. Spraying these liquids on injured / diseased plants is a brilliant remedy.
This example uses nettle (warning, unless boiled/cooked or dried, nettle has stingers):
Place gathered material in vessel, chop up finely and add water. Place in a warm spot for quicker dissolving:
Stir as often as possible. In around 7 – 21 days it will be ready. (Notice: As it breaks down it will begin to smell very strong)
It is worth putting a lid on once the material has broken down, as birds and other creatures will not be able to escape.
Follow this process for all other feeds. Combinations of different plants are fine to make as well.
Another method, instead of mixing the plant material in the water, is; the plant material can be suspended within a sack (hessian, hemp sacks etc), in the water, and then the liquid feed will be ready in around the same time.
To make a spray, strain this liquid and pour into a spray bottle.
In this example, cana/hemp leaves were dissolved, filtered into a spray bottle and sprinkled/sprayed onto pear tree leaves:
The remaining bits and residue at the bottom is ideal for the base of trees or to start a compost pile.
Due to the nature of nettle plants, they contain many nutrients because of the locations and soils that they grow in. Nettle feed is used as general plant food, and healer for poorly plants. Apply it neat to heavy feeding plants like tomatoes, for lighter feeders, dilute it down. Whenever planting seedlings/plants/trees etc, dip the root ball in the liquid mixture for many benefits. Also pour some into the planting hole.
A liquid feed of green onion leaves/stalks (or plants of the onion family like leeks, allium etc) is very good for strawberries, and the moulds / fungi that attack them.
Liquid feeds made of cabbage and similar plants will be nutritious for the garden.
Rhubarb and/or Horse radish liquid feed will help prevent club root in cabbages and other plants.
Liquid feeds (preferably nettle mixed with erbs), can be used to heal wounded tree trunks by painting it on. Use water glass to help it stick if needed.
Frost damaged trees can also be treated with the liquid feeds.
Mildew is prevented by using a horsetail spray.
A mixture of nettle, comfrey and cabbage feed is healthy for strawberries.
Comfrey (can supply potassium, especially certain varieties),
Woodland fern (supplies potash),
Valerian (encourages flowering),
Medicinal erbs and combinations of them,
Combinations of different plants
Use these carefully due to the strong chemical properties;
Wormwood (wormwood is unique – wherever it is growing, worms will vacate the area and there will be less worms in the area where it is growing, also the liquid feed will discourage worms which is not ideal because worms help work the soil. However wormwood planted near currants will help prevent “rust”, and wormwood liquid sprayed onto rust affected bushes will help).