First, confirm what kind of moisture your plants need.
Are your plants like you, and need a good drink when they’re a bit thirsty? Or do they like it drier, with a long drink every now and then? Or are they happiest in a wetter environment when they have “soggy feet?” It’s a good idea to keep plants with similar watering needs together so you can ensure they get what they need to live happy, healthy lives.Check the soil before watering to see if it’s dry.
Water at the root level.
Rather than watering over the top of your plant, getting the leaves saturated (and creating an environment where mold and mildew can form), it’s best to direct the water at the soil, letting it soak in and making sure the entire root ball is getting a nice, thirst-quenching drink. Your plant’s roots may be just as wide as your plant itself, and maybe a foot or so deep, so picture that when you’re doing your watering
Water in the morning.
The idea is that if you water in the morning and you do happen to get the leaves wet, your plant has time for the sun to dry them out. When foliage is dry, it’s harder for diseases to take hold.
Also, the morning is better than mid-day when evaporation can be a real issue.
Second choice if you can’t water in the morning is to water in the evening to avoid evaporation. (But be even more careful not to get leaves wet…)
Water slowly and deeply.
Just like you, your plant needs time to drink appropriately, rather than have a blast that either runs off the soil’s surface or makes inefficient puddles. When you water slowly, especially in the beginning, the top few inches of the soil get moist, making it easier for more water to be absorbed.
Also, watering slowly and deeply encourages your plants’ roots to stretch out and reach down for residual water, even when the surface of the soil appears dry.
Check out this watering video courtesy of Dramm Visit: https://youtu.be/dAT6PNUgyRc?feature=shared