Find a reference
Since each plant has entirely different needs, it’s essential to find trustworthy references that will tell you everything you need to know about each specific plant. While you can find info on any plant with a quick Internet search, you’ll find that some sites have more information on certain plants than others. If you own a collection of houseplants, I highly recommend picking up a book such as “The House Plant Expert” by D. G. Hessayon.Inspect while you water
Even with all the knowledge in the world at your fingertips, your senses are the best tools in your arsenal. Every time you water, inspect each plant for problems such as pests, yellowed leaves or slow, lanky growth. A plant needs to be watered more if:- The top inch of potting mix is dry
- Leaves are wilting (unless soil is moist)
- Water runs over the soil and drains along the sides
- The plant feels lighter than usual
- The soil feels more soggy than moist
- The roots are beginning to rot
- You see fungus gnats every time you water
- It has been over a few months since purchasing the plant
- The time-release fertilizer pellets or fertilizer spikes are spent
- The palm fronds are yellowed
- The plant is growing at a glacial pace
- It’s been over a year since you fertilized
- You can’t remember the last time you fertilized
- The existing potting mix drains too quickly or slowly
- The plant’s roots coil tightly together in the pot, forming a solid mass
- The potting mix is practically older than dirt
- The exposed leaves are getting scorched and bronzy
- It’s a shade-loving plant but is receiving direct rays of sunlight
- Its new growth is spindly and stretched out
- The plant actually appears to reach for more light
- The leaves are very dark green
- It’s in a room without a window, such as a bathroom