Upcycle mason jars into planters

A Sept. 8 post on X by user @suman44617999 presented mason jars as small succulent planters, with step photos showing jars, potting mix, drainage material and compact plants. The post framed the project as a low-cost indoor DIY and did not include product links. The format was familiar: reuse a common kitchen item, add a small plant, and turn it into decor. Extension guidance adds a practical constraint that the post did not fully address. Illinois Extension says “a hole at the bottom of the container is critical” because waterlogged soil limits air around roots and can lead to rot. Colorado State University Extension similarly says the “most important thing to consider is drainage” and advises making multiple holes in containers that do not already have them. ### Can a mason jar work as a planter if it has no drainage hole? Illinois Extension says few plants tolerate sitting in stagnant water, and it recommends drainage holes so water can move freely through the soil. For succulents, that matters more than for many other houseplants because the plants are adapted to infrequent rain and need periods of drying between waterings. (x.com) Iowa State University Extension outlines one workaround for containers without drainage holes: place the nursery pot with drainage inside a decorative outer container. That approach preserves the mason-jar look while keeping the plant in a pot designed to drain. Commenters on the X thread suggested saucers, which fit the same basic concern — controlling excess water — but a saucer alone does not solve the problem if the jar itself has no hole. (extension.illinois.edu) ### What kind of soil do succulents need in a jar? Ask Extension recommends a fast-draining mix made from potting soil, coarse sand and perlite or pumice. Illinois Extension’s succulent container guide likewise lists pre-mixed cactus and succulent potting mix, or container mix amended with perlite or coarse sand, among the basic supplies. Montana State University Extension says succulent care starts with the same basics as other plants — water, light and nutrients — but should be guided by the conditions succulents evolved in. (yardandgarden.extension.iastate.edu) In practice, that means avoiding heavy, moisture-retentive mixes and using soil that dries relatively quickly indoors. ### Are rocks at the bottom enough for drainage? Utah State University Extension says rocks can be used over a drainage hole to keep soil from falling out, but the advice assumes the container already has a hole. (ask.extension.org) UC Master Gardeners of Santa Clara County warns against creating layers that trap water above the interface between materials, and instead recommends improving drainage by amending the potting mix with coarse materials such as perlite, crushed lava or pumice. (extension-store.montana.edu) That distinction matters for jar projects because decorative pebbles are often treated as a substitute for drainage. Extension sources describe them as, at most, part of a broader setup — not a replacement for a drainage opening and fast-draining soil. ### Which jar size makes the most sense? Ball’s mason jar catalog shows jars sold across multiple sizes, including common canning formats such as pint and quart. (extension.usu.edu) For a single small succulent or a nursery pot nested inside, a smaller jar reduces the amount of extra soil that can stay wet around the roots. The next step for anyone copying the Sept. 8 post is straightforward: choose a jar size from Ball’s standard lineup, use cactus or succulent mix with perlite or coarse sand, and either add drainage holes or keep the plant in a smaller draining pot set inside the jar. (extension.usu.edu) (ballmasonjars.com)