Sub-irrigated planter (SIP) is a generic name for a special type of planting box used in container gardening and commercial landscaping. A SIP is any method of watering plants where the water is introduced from the bottom, allowing the water to soak upwards to the plant through capillary action.Sub-irrigated planter FAQ , from Planter Technology It is possible to automate the watering and thus SIPs are popular with professional landscapers in buildings or urban settings. Commercialized versions of a Sub-irrigated planter condenses humidity from the environment and feed it directly into the plants' roots. SIPs are available as commercial products or as do-it-yourself projects made from plastic buckets,How To Make a Two Bucket Sub-Irrigated Planter boxes or storage totes.[https://albopepper.com/30-gallon-tote.php Creating a Sub-irrigated Tote Garden Planter] One of the disadvantages of such closed systems is that soluble salts cannot be flushed into the lower soil profile and build up over time.
See also Subirrigation Wicking bed
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