If you’ve been scrolling through plant groups on social media, you’ve probably seen people placing their pots in sinks or trays filled with water. This is called “bottom watering,” and it’s a trend that is taking the plant parent world by storm. But is it really better than the traditional way of pouring water from the top?
The truth is, both methods have their pros and cons. Let’s break down which one is best for your indoor jungle.
What is Top Watering? This is the classic method: you pour water onto the soil surface until it drains out of the bottom holes.
- The Pro: It’s fast and convenient. It also helps wash away accumulated salts and minerals from fertilizers that build up on the soil surface.
- The Con: If the soil has become “hydrophobic” (so dry that it repels water), the water might just run down the sides of the pot without actually reaching the roots in the center.
What is Bottom Watering? You place your plant (in a pot with drainage holes) into a bowl or tray containing about an inch or two of water. The soil acts like a sponge, pulling water upward through capillary action.
- The Pro: It ensures the roots at the very bottom get a thorough drink. More importantly, it keeps the top layer of soil dry, which is the #1 way to prevent fungus gnats (those pesky little black flies).
- The Con: It takes time (usually 15-30 minutes per plant) and it doesn’t wash away excess salts from the top of the soil.
The Verdict: Which should you use? For most plants, a combination of both is the secret to success!
- Use Bottom Watering for your regular routine. It encourages roots to grow deep and strong as they reach down for moisture.
- Use Top Watering once every two months. This “flushes” the soil and prevents mineral buildup that can eventually burn your plant’s roots.
Frequently Asked Questions (FAQ)
How long should I leave my plant in the water? Usually, 15 to 30 minutes is enough. Once the top of the soil feels slightly moist to the touch, the plant has had its fill. Don’t leave it overnight, as this can lead to root rot!
Can I bottom water all my plants? Almost all! However, plants in very large, heavy pots are difficult to move, so top watering is usually the only practical option for them.