Chlorophytum comosum
Spider plants store water in thick, fleshy roots, so they handle a missed watering better than an extra one. Brown leaf tips are the usual complaint, and they have more than one cause.
Short answer: for a spider plant, with the starting settings below (a 6 inch pot with a drainage hole), check the soil about every 6 to 8 days in spring and summer and every 8 to 13 days in winter, and water when the top inch of soil is dry. Give it a full drink until water runs out the bottom.
Your answer
Water when the soil reaches this point
How it shifts through the year
Check the soil about every 6 to 8 days in spring and summer and water only when the top inch of soil is dry. In winter, growth slows and soil stays wet longer, so expect roughly 8 to 13 days between checks. Always confirm with your finger first.
Water slowly until water runs out the drainage holes, then empty the saucer within an hour. The right amount depends on pot size, so go by drainage and how dry the soil is, not a fixed measure. Fleshy roots store water, so err toward less rather than more.
Common causes are soil that gets too dry, minerals or fluoride in tap water, and dry air. Fix the watering rhythm first, then try filtered water.
No. It does well slightly root-bound, and a pot that is too large keeps the soil wet for too long.
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Related guides
Estimates use rules of thumb. Always confirm with your finger: push it about an inch into the soil before you water.