This small fern will make a pretty summation to your houseplant collection or outdoor garden .
David J. Stang
Korean rock fern ( Polystichum tsus - simense ) are beautiful and easy - to - spring up fern that can be develop both indoors as a houseplant and outdoors as a garden plant in tender climate ( USDA Hardiness Zones 7 - 10 ) . Native to eastern Asia , these fern are often found growing on rock walls in locations from full Dominicus to full tint . Their power to develop in deep shade and where they regularly dry out , along with their dogged light-green frond and dark stems , make Korean John Rock ferns an first-class choice for protected field outside where few other plants will survive . Indoors , these fern can growin less light than other common houseplants .
Credit:David J. Stang
Where to Plant Korean Rock Ferns
In general , Korean tilt fern do best as an indoor plant but can be grown outdoors in warm , wet climate zones . Being belittled , clump - forming plants , they do not postulate frequent repotting and can be acquire with likewise sized industrial plant that have similar cultural requirements . force breeze venthole , fans , and cold drafts should be keep off .
out of doors , Korean rock fern will do well in protected locating with bright , collateral light and regular moisture , but they can survive with some drying between watering . Because of their fibrous beginning system , they do well in locating with shallow grease , but benefit from mulching for more consistent moisture . Avoid planting these fern near sharply spreading plants such aslilyturf ( Liriopespp.)orEnglish ivy ( Hedera helix ) .
How and When to Plant Korean Rock Ferns
Outdoors , plant Korean stone ferns in spring to allow plants to become established throughout the raise time of year . Dig a hole twice the width of the root clump and place in the center of the hole . Sprinkle some granular fertilizer around the ancestor lump and refill with soil . Water gently and keep moisture throughout the first growing time of year .
Care Tips for Korean Rock Fern
Light
These fernsprefer bright collateral brightness , but can acclimatise to full sunlight in cool conditions . Korean rock fern can also grow , but not thrive , in dimmer firing where they will maintain their color , but show very piffling growth .
Soil and Water
Korean rock ferns favour moist condition , but will not tolerate standing water for long periods of time so ensure to plant it inwell - drain soil . In a container , pot admixture with added perlite will ensure plentiful wet keeping while maintain right drainage .
Temperature and Humidity
As with most ferns , these plants will do best when given warm temperature and eminent humidness . temperature over 90 ° F or lower than 32 ° farad will slow growth or vote out plant .
Maintain humidness around flora outdoors byapplying an organic mulch around uncovered soil . Indoors , Korean rock ferns will do well in more humid location around the sign of the zodiac such as the kitchen and bathrooms .
Fertilizer
Abalance fertilizeronce a calendar month , while plants are actively spring up , will keep plants green and thriving . Outdoors , the addition of compost and mulch to the soil will help keep moisture locked in the land while also ply plant life with nutrients .
Potting and Repotting
When uprise indoors , Korean rock music fern can berepotted anytime during the class . Due to clip-clop growth , plants only require repotting when they have begin to outgrow their current pot . Excessive root growth from the bottom of the pot and protrude slope ( in plastic green goddess ) will indicate repotting is necessary .
Pests and Problems
Korean rock-and-roll ferns feel few diseases by from root rot andmealybugs . Root rot can be avoided by using a well - draining soil mix and never allowing plants to sit in standing water . Treat mealybug with an constitutive pesticide such asneem oil . Individual mealybugs can be withdraw with your finger if you are n’t squeamish .
How to Propagate Korean Rock Fern
Like most fern , Korean tilt fernsgrow from sporesand require at least a class before true frond are noticeable . But if you ’re patient , you’re able to collect spores and grow them into novel ferns .
Companion Plants for Korean Rock Fern
Outdoors , embed your Korean rock ferns with non - aggressive plant such aswild ginger ( Asarum candense ) , smallerhostas ( Hostaspp . ) , andlungwort ( Pulmonariaspp . )
Ferns geminate well with other moisture - loving houseplants such aspeace lilies(Spathiphyllumspp.),pilea ( Pileaspp . ) , andpothos(Pothosspp . ) .
Frequently Asked Questions
Unlike many other plants , Korean rock fern will grow in a north - confront window . However , they will do well with brighter , collateral light .
Yes , these fern are generally safe for African tea and dogs , although if run through , they may get some venter upset .
