Drainage holes, pot size, material — it all affects how your plant grows. The wrong pot can undo all your careful watering and light management. Here's what actually matters when choosing a new home for your plant.

Size: Go Up Only One or Two Inches

This is the most common mistake. A pot that's too big holds excess soil, which stays wet longer and can cause root rot. The soil should roughly match the root ball — an extra inch or two of soil around the edges is fine, but don't double the pot size.

General rule: the new pot should be 1-2 inches larger in diameter than the current one. For a 6-inch pot, move to an 8-inch. For an 8-inch pot, go to 10-inch. Anything larger creates the "too much wet soil" problem.

Drainage Holes Are Non-Negotiable

Every pot needs drainage holes. Period. No exceptions. If you fall in love with a decorative pot that has none, use it as a cachepot — keep the plant in a plastic nursery pot with holes inside the decorative one. Lift the inner pot to water, let it drain fully, then put it back.

Material Matters

Terra cotta: Porous, so soil dries faster. Great for plants that like to dry out (succulents, snake plants, pothos). Not ideal for plants that want consistent moisture (ferns, calatheas).

Plastic or nursery pots: Retain moisture longer. Inexpensive and functional. Many people double-pot with these inside decorative containers.

Ceramic (glazed): Less porous than terra cotta, so moisture stays longer. Good for tropicals that like humidity but not soggy soil.

Concrete: Extremely porous and dries soil quickly. Good for drought-tolerant plants. Heavy, so best for large, stable plants.

Depth vs. Width

Some plants want depth (fiddle leaf figs, monstera) — they have deep root systems. Others are shallow-rooted and prefer width (pothos, spider plants). Know your plant's root structure before choosing a pot shape.

When to Repot

  • Roots growing out of drainage holes
  • Plant is top-heavy and tips over easily
  • Water runs straight through without absorbing
  • Growth has slowed significantly in spring/summer
  • It's been 2+ years since the last repot

The Repotting Process

Water the plant a day before repotting. Gently remove it from the old pot — if it sticks, squeeze the plastic or run a knife around the edge. Place the plant in the new pot at the same depth it was before (burying the stem deeper can cause rot). Fill with fresh potting mix, pressing gently to eliminate air pockets. Don't water for a few days to let roots recover.

After repotting, your plant might look stressed for a week or two. That's normal — it's adjusting to its new space. Keep it out of direct sun and don't fertilize for at least a month.

See also: Fell for a pot with no hole? Pots Without Drainage Holes: What Works and How to Water covers cachepots, drilling and watering doses.