How to choose a decorative pot: measuring, drainage, and watering without standing water

Deco Garden Practical Measurement Guide

A beautiful cachepot won't help if your nursery pot gets stuck at the opening, sinks too deep, or sits in water. Here, we distinguish between a cachepot and a planting pot, measure the three key points that determine fit, and water without leaving excess moisture around the roots.

First, decide: cachepot or planting pot?

A cachepot is a decorative vessel that houses the nursery pot with its drainage holes. You remove the inner pot for watering, drain it, and return it. A planting pot is the container that holds the soil and roots directly, so it must fit the root volume and allow excess water to escape.

Many decorative ceramic pots lack sufficient drainage. Until you have verified that a pot has an open drainage hole and the planting method is suitable for the plant, use it as a cachepot rather than planting directly in it.

Fit is determined by three measurements — not the size name

The number on the variant doesn't tell us what happens inside the vessel. A thick rim, curved walls, or a narrow base can reduce the usable space. Therefore, measure the nursery pot and the cachepot at the same points.

1. At the opening: Measure the widest outer diameter of the nursery pot, including the rim. It must fit within the inner diameter of the cachepot opening.
2. At the base: Measure the outer bottom diameter of the nursery pot and compare it to the inner base diameter of the pot. In vessels that taper downward, this is often the deciding measurement.
3. At the height: Measure the height of the nursery pot and compare it to the internal usable height. Leave space below for drainage and ensure you can grip the rim of the pot to remove it.

What do the 15, 21, and 30 cm sizes mean for this product?

In the modern Deco Garden ceramic line, the selector shows three commercial sizes: 15, 21, and 30 cm. The inner diameter, base diameter, and usable height have not yet been published as verified measurements. Therefore, the number helps select a starting point, but it is not proof that a nursery pot with the same number will fit.

If the fit is close or if the pot is intended for a precise niche, contact us with the three nursery pot measurements. We can measure the variant available in our warehouse before you order.

Want to choose a color and size?

The ceramic pot page displays 11 colors and three sizes. Only choose after measuring, and in borderline cases, ask us for a warehouse check.

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Watering: remove, drain, and only then return

Water remaining in the cachepot can keep the bottom of the nursery pot wet and reduce air circulation around the roots. Even if the amount seems small, do not use the outer pot as a reservoir unless it is a dedicated irrigation system with manufacturer instructions.

1. Remove the nursery pot from the cachepot and place it in the sink, shower, or a place that allows water to escape.
2. Water according to the plant's needs and moisten the soil evenly, without setting the same schedule for every plant.
3. Let the excess drain from all drainage holes. Do not return a pot that is still dripping into the cachepot.
4. Empty the cachepot and return the pot only when the bottom is no longer sitting in water.

Transferring to a new pot is a different decision

If the goal is to remove the plant from the nursery pot and replant it, the cachepot size is not the correct metric. Choose a planting pot with drainage based on the root ball, plant type, and soil medium.

For houseplants in pots smaller than 25 cm, RHS guidelines usually suggest starting with a pot about 2.5–5 cm wider and deeper than the current one. The University of Illinois describes this as a one-size increase, about 1–2 inches. This is just a starting range: damaged roots, plant division, or a species with special requirements can change the choice. A pot that is too large leaves more wet soil around few roots.

Frequently asked questions

My nursery pot is labeled 15 cm. Should I choose a 15 cm pot?

Not by the number alone. Measure the widest outer rim, the base, and the height of the nursery pot, and compare them to the opening, base, and internal height of the cachepot.

Can I water while the pot is inside the cachepot?

It is better to remove it. This way, you can see that the water has drained, empty the outer pot, and not leave the bottom of the plant in water.

Is a larger pot better so I don't have to replace it later?

As a cachepot, it can be larger if the plant is stable and easy to remove. As a planting pot, a large jump leaves a volume of soil that is not filled with roots and may dry out too slowly.

I don't have the internal measurements of the pot. What should I do?

Send us the three nursery pot measurements along with the desired color and size. If the fit is close, ask for a measurement of the available variant before ordering.

Have you measured the nursery pot?

Proceed to your desired color and size. If the measurement is borderline, write to us before ordering and we will check the ceramic pot available in our warehouse.

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