No, you should not water parsley every day in most cases. The smart approach to watering parsley is one deep soak about once a week, not a quick daily splash. A plant that gets that weekly soak roots deeper and wilts far less than one you sprinkle each morning. So if you have wondered how often to water parsley, the short answer is less often but more thorough.
Here is why the rhythm matters so much. A daily splash only wets the top of the soil, so the roots stay shallow and crowd near the surface. A deep soak pulls water down past the root zone, and the roots chase it. Deeper roots reach moisture during dry spells, so the plant handles heat and missed days with no trouble. A shallow-rooted plant, on the other hand, droops the moment the sun gets harsh or you forget a single morning.
Shallow watering also sets your plant up for two problems at once. The top of the soil stays damp all the time, which invites root rot and fungus near the crown. Yet the soil an inch down can still go bone dry, so the plant feels drought stress even though you water often. A deep weekly soak fixes both. It floods the whole root zone, then lets the surface dry out before the next round.
The locked rule for an in-ground parsley plant is simple. Give it a deep watering at least once a week, and adjust for your weather and soil. Sandy soil drains fast and may want water twice a week in summer. Heavy or clay soil holds moisture longer, so you can stretch the gap. Rain counts too, so skip a soak after a good downpour. Parsley likes rich, well-drained ground, and that kind of soil holds a weekly soak well without staying soggy.
When I water my own parsley bed, I let the hose run slow at the base for a minute or two per plant rather than misting the leaves. A slow, low stream sinks straight down to the roots instead of running off the top. Wet leaves dry out, but wet roots are what the plant actually needs. Morning is the best time, since the foliage dries before the cooler evening air settles in.
One deep soak a week wets the whole root zone, drives roots down, and builds a sturdier, more drought-resistant plant.
A daily splash only dampens the surface, encourages shallow roots, and can leave the plant both stressed and prone to rot.
Pots change the math, though. A small container holds little soil and dries out fast under hot sun. In a heat wave, parsley in pots watering can mean a drink every day or two, not once a week. The pot size and the weather drive that pace. A tiny pot on a sunny balcony in July is a whole different job than a big planter in the shade.
So skip the fixed daily schedule and let the soil tell you when to act. Push a finger into the top inch (2.5 cm) of soil near the plant. Water when that layer feels dry, and wait when it still feels damp. This one check beats any calendar, in the ground or in a pot. It keeps you from drowning the roots and from letting them dry out.
Watering parsley well comes down to depth over frequency. Soak it deep, let the top inch dry, and water again only when it does. Do that and you grow a tougher plant with darker leaves and far less wilting. Daily watering, by contrast, just trains weak roots and rots the crown.
Read the full article: Parsley Plant Guide: Grow, Harvest, Use
