Housekeeping · 화분 관리

Reuse Terracotta Pots in 6 Steps: Remove Soil, Salts and Clean Safely

Used clay pots can hold soil debris, mineral salts and plant pathogens. Learn to inspect, scrub, rinse, assess whether disinfection is needed and prepare the pot for reuse.

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Wikimedia Commons / Pelarmian · Pelarmian, 'Red terracotta flowerpots.jpg', Wikimedia Commons, CC BY-SA 3.0; original image unmodified. · CC BY-SA 3.0 ↗

Unglazed terracotta is porous and may show white mineral deposits on its surface. Using Iowa State University Extension and RHS advice, this guide separates routine soil removal from disinfection when past plant disease poses a risk. The photo shows unused retail pots, not a before-and-after cleaning test.

Your try-it-at-home checklist

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1. After removing the plant, empty loose soil and root debris from the pot. Inspect the rim, walls and drainage hole for cracks or damage before reusing it.
2. Brush off stuck soil and the white mineral deposits common on porous clay. Begin gently; harder scrapers can chip the pot or injure your hand.
3. Wash the inside and outside with water and mild dishwashing detergent, then rinse thoroughly. Check the rim and base for remaining soil and soap residue.
4. If the former plant was diseased, or you plan to start vulnerable seedlings, decide whether disinfection is required in addition to washing. Follow horticultural guidance and the product label; never mix cleaning chemicals.
5. If a disinfectant was used, rinse and ventilate as the label directs. Protect skin and eyes and keep children and pets away from the working solution.
6. Before repotting, check that drainage is open and use appropriate clean potting mix. For storage, drain and place the pot somewhere dry and safe from breakage; avoid conditions where waterlogged terracotta can freeze and crack.

Iowa State University ExtensionHow to Clean and Disinfect Plant Containers ↗Primary instructions: soil and salt deposits removed before cleaning, porous terracotta needs scrubbing, washing and rinsing; disinfection relevant to reused pots with disease risk. No ratios recommended in the adapted article; product label controls.Royal Horticultural SocietyPreventing pest and disease problems ↗Garden hygiene advice includes cleaning garden pots and preventing cross-contamination from plant diseases.Royal Horticultural SocietyGrowing plants in containers ↗Unglazed terracotta porous and dries quicker; prone to frost cracking, keep pot drainage clear.Wikimedia CommonsFile:Red terracotta flowerpots.jpg ↗2014 photo by Pelarmian of Whichford pottery flowerpots for sale at Great Dixter Garden; CC BY-SA 3.0, credits checked.Wikimedia CommonsCommons:Reusing content outside Wikimedia/technical ↗Official source-level permission for hotlinking; attribution and individual file licences remain mandatory.

Your try-it-at-home checklist

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