Most trees need about 2–3 US quarts (2,000–3,000 ml) of water once per week for every foot in height (spread evenly around its root system). Thus, a 20 feet (6. 1 m) tall tree should get 40–60 US quarts (38,000–57,000 ml) of water once per week. Or, about 18 liters (4. 8 US gal) per week for a 6-meter tree. [1] X Research source
Most sprinkler systems will hook up directly to your hose, making for simple installation. More complex underground sprinkler systems will usually need to be installed by a professional. [2] X Research source
Water your landscape on a regular schedule even if it looks like it may rain. It’s unlikely you will over-water your garden even if it does rain.
For each week thereafter, water once per week so the landscape gets 1 inch (2. 5 cm) per week.
Follow the fertilizer package directions and apply balanced liquid fertilizer to your landscape using the garden feeder that attaches to your sprinkler. [5] X Research source
Compost or manure can be obtained at garden centers or hardware stores in 40-pound bags for under $3 per bag (USD).
If your landscape is mulched, rake away the mulch before applying the compost. Then replace the mulch.
Wear long pants and a long sleeved shirt to protect yourself from bugs and ticks. If you need to get rid of pests, make sure the insecticides you use won’t damage your plants.
Many diseases that affect plants spread quickly. If you find a plant that’s diseased, you can treat it with fungicide, or remove the plant from your landscape and burn it. [10] X Trustworthy Source Royal Horticultural Society Leading gardening charity in the U. K. providing resources for identifying, growing and caring for flowers and other plants Go to source Fungicide sprays can be found at gardening supply stores.
Plants can also get too much sun and end up sunburned. Check the leaves. If there are brown spots (and they haven’t just bean eaten by bugs), they may be sunburned. Try moving the plants to a more shaded area.