The Horta plant library

Every plant, kept true.

Care facts, cultivars, and provenance for the plants people grow — sourced and tiered, and honest about what we don’t know yet. Search a name, or browse the genera below.

Browse by genus

Every genus with a plant in the library. Open one for its species, then a species for its full care record.

AcalyphaJacob's Coat · Chenilleplant · Dwarf Chenilleplant3 species AcorusCalamus · Slender Sweet Flag2 species AdeniumDesert Rose1 species AdiantumMaidenhair Fern · Delta Maidenhair Fern · Northern Maidenhair4 species AechmeaUrnplant · Orangeade Bromeliad · Matchstick Plant5 species AeoniumTree Aeonium · Haworth's Aeonium · Canary Aeonium4 species AgaveTequila Agave · Fox Tail Agave · Caribbean Agave16 species AglaonemaChinese Evergreen · Chinese Evergreen2 species AlocasiaAmazonian Elephant Ear · Zebra Plant · Giant Taro12 species AloeBarbados Aloe · Flat-flowered Aloe · Tiger Tooth Aloe7 species AnanasPineapple1 species AnthuriumFlamingo-Lily · Velvet Cardboard Anthurium · Crystal Anthurium7 species AphelandraSaffron Spike · Coral Aphelandra2 species AraucariaMonkey Puzzle · Norfolk Island Pine · Bunya Bunya6 species AristaloeGuinea-fowl Aloe1 species AsparagusAsparagus · Common Asparagus Fern · Asparagus Fern5 species AspidistraCast Iron Plant1 species AspleniumBird's-nest Fern · Hart's-tongue Fern · Maidenhair Spleenwort5 species AstrophytumSand Dollar Cactus · Bishop's-cap · Monk's-hood3 species

BeaucarneaBottle-palm · Ponytail Palm · Mexican Ponytail3 species BegoniaCane Begonia · Painted-leaf Begonia · Hybrid Tuberous Begonia14 species BillbergiaQueen's-Tears · Foolproofplant2 species BisnagaGlaucous Barrel Cactus · Barrel Cactus2 species BorzicactusSilver Torch · Monkey's Tail · Golden Rat Tail3 species

CaladiumHeart Of Jesus1 species CalatheaCuban Cigar Plant1 species CallisiaCreeping Inchplant · Basketplant2 species CaryotaJaggery Palm · Burmese Fishtail Palm · Fishtail Palm3 species CattleyaChristmas Orchid1 species CereusApple Cactus · Queen Of The Night · Lady Of The Night Cactus4 species CeropegiaString of Hearts · Zulu Giant · Carrion-Flower3 species ChamaecereusPeanut Cactus1 species ChamaedoreaParlor Palm · Bamboo Palm2 species ChamaeropsEuropean Fan Palm1 species ChlorophytumSpider Plant · Pongol Sword2 species CissusVeldt Grape · Princess Vine2 species CitrusLemon · Pummelo · Citron12 species CliviaClivia1 species CodiaeumGarden Croton1 species ColocasiaCocoyam1 species CordylineGood Luck Plant · Narrow-leaf Palm-lily2 species CotyledonPig's Ear · Bear-paws2 species CrassulaJade Plant · String of Buttons · Toy-cypress10 species CrossandraFirecracker-flower1 species CtenantheNever-never-plant · Fishbone Prayer Plant · Never Never Plant3 species CurioString of Pearls · Creeping Berry · Bluestraws4 species CycasSago Palm1 species CyclamenFlorist's Cyclamen · Sowbread · Eastern Sowbread3 species CyperusUmbrella Sedge · Miniature Flatsedge2 species CyrtomiumHouse Holly Fern1 species

DavalliaLacy Hare's-foot Fern1 species DendrobiumNoble Dendrobium · Pink Rock Orchid · Rock-lily6 species DieffenbachiaDumb Cane1 species DionaeaVenus Flytrap1 species DracaenaSnake Plant · Madagascar Dragon Tree · African Bowstring Hemp11 species DroseraCape Sundew1 species DypsisYellow Butterfly Palm · Triangle Palm2 species

EcheveriaMexican Snowball · Molded-wax · Chenilleplant11 species EchinocactusCandy Barrel Cactus1 species EchinopsisPink Easter-lily Cactus1 species EnseteAbyssinian Banana1 species EpidendrumFire Star Orchid · Lopsided Star Orchid · O'Brien's Star Orchid3 species EpiphyllumDutchman's Pipe Cactus · Nightblooming Cactus · Climbing Cactus3 species EpipremnumGolden Pothos · Centipede Tongavine2 species EpisciaFlame Violet1 species EuphorbiaPoinsettia · Crown Of Thorns · Firestick Pencil Cactus35 species

FatsiaFatsia1 species FerocactusCalifornia Barrel Cactus · Devil's-tongue Cactus · Mexican Lime Cactus6 species FicusFiddle Leaf Fig · Rubber Plant · Weeping Fig14 species FittoniaMosaic-plant1 species

GardeniaCape Jasmine · Tahitian Gardenia · Cape Jessamine3 species GasteriaKeeled Oxtongue1 species GibasisDotted Bridalveil1 species GoeppertiaCalathea Orbifolia · Brainplant · Rose Painted Calathea12 species GraptopetalumGhostplant1 species GraptophyllumCaricature-Plant1 species GuzmaniaDroophead Tufted Airplant1 species GymnocalyciumRed-cap1 species GynuraVelvetplant · Red-vegetable2 species

HatioraDancing Bones1 species HaworthiaBristle Haworthia · Cathedral Window Haworthia2 species HaworthiopsisZebra Haworthia · Fasciated Haworthia · Fairy Washboard4 species HederaEnglish Ivy · Canary Ivy · Persian Ivy4 species HeptapleurumDwarf Umbrella Tree · Australian Umbrella Tree · Common Schefflera3 species HibiscusBladder Ketmia · Scarlet Rose-mallow · Smooth Rose-mallow5 species HippeastrumStriped Barbados Lily · Barbados Lily · Netted-veined Amaryllis3 species HomalomenaRed Shield Homalomena1 species HoweaKentia Palm1 species HoyaHoneyplant · Heart Hoya · Hoya4 species HuerniaRed Dragon Flower1 species HypoestesPolkadot-Plant · Ribbon Bush2 species

IresineBloodleaf · Juba's Bush2 species

JasminumArabian Jasmine · Summer Jasmine · Pink Jasmine7 species JusticiaMalabar Nut · Shrimp Plant · Warer Willow8 species

KalanchoePaddle Plant · Cathedral Bells · Madagascar Widow's Thrill16 species KleiniaBarberton Senecio1 species

LecanopterisKangaroo Fern1 species LiriopeBig Blue Lilyturf · Creeping Liriope2 species LivistonaChinese Fan Palm · Cabbage Tree Palm2 species LudisiaJewel Orchid1 species

MammillariaGolden Star Cactus · Spiny Pincushion Cactus · Little Candles9 species MarantaPrayer Plant · Arrowroot2 species MedinillaShowy Medinilla · Medinilla formosana2 species MicrocitrusFinger Lime1 species MicrosorumMonarch Fern · Climbing Bird's Nest Fern · Musk Fern4 species MonsteraSwiss Cheese Plant · Adanson's Monstera · Window-Leaf Monstera6 species · 3 cultivars MusaEdible Banana · Japanese Banana · Pink Velvet Banana5 species

NeoregeliaBlushing Bromeliad · Neoregelia cruenta2 species NepenthesTropical Pitcherplant1 species NephrolepisSword Fern · Tuber Ladder Fern · Giant Sword Fern5 species

OncidiumKandyan Dancer Orchid1 species OphiopogonDwarf Lilyturf · Black Mondo · Lilyturf3 species OpuntiaAngel's-wings · Bakersfield Beaver-tail Cactus · Cochineal Cactus21 species OxalisWood Sorrel · Four-Leaved Pink Sorrel · Garden Pink-Sorrel5 species

PachiraGuiana Chestnut · French-peanut2 species PachystachysLollipop Plant1 species PandanusFragrant Pandan · Screw Pine · Screw-pine4 species ParodiaBalloon Cactus · Golden Ball Cactus2 species PelargoniumPeppermint-Scented Geranium · Lemon-scent Pelargonium · Regal Pelargonium4 species PeperomiaBaby Rubberplant · Watermelon Pepper · String of Turtles10 species PhalaenopsisMoth Orchid1 species PhilodendronHeartleaf Philodendron · Blushing Philodendron · Black-gold Philodendron10 species PhlebodiumGold-foot Fern1 species PhoenixPygmy Date Palm · Loureir's Date Palm2 species PileaChinese Money Plant · Aluminium Plant · Artillery Plant4 species PlatyceriumElkhorn Fern · Staghorn Fern2 species PlectranthusWhorled Plectranthus · Speckled Spur Flower · Ecklon Spurflower4 species PlerandraFalse Aralia1 species PodocarpusBig-leaf Podocarp · Totara · True Yellowwood7 species PolysciasMing Aralia · Shield Aralia · Geranium Aralia4 species PortulacariaElephant Bush1 species PterisLadder Brake · Slender Brake2 species

RavenalaTraveler's Tree1 species RaveneaMajestic Palm1 species RhaphidophoraMini Monstera · Creeping Philodendron2 species RhapisBamboo Palm1 species RhipsalisMistletoe Cactus1 species RuelliaFringe-leaf Ruellia · Violet Wild Petunia · Carolina Wild Petunia5 species

SarraceniaHuntsman's Cup · Trumpets · Purple Trumpet-leaf3 species SaxifragaStrawberry Saxifrage · Garden Mossy-saxifrage2 species ScheffleraDwarf Umbrella Tree1 species SchlumbergeraChristmas Cactus · Claw Cactus2 species ScindapsusSatin Pothos · Sterling Silver2 species SedumBaby Burro's Tail · Burro's-tail · Christmas-cheer20 species SelaginellaKrauss's Clubmoss · Blue Spike-moss2 species SelenicereusNightblooming Cactus · Fishbone Cactus2 species SempervivumHouse-Leek · Cobweb House-leek · Limestone Houseleek4 species SenecioOld-man-in-the-spring · Cape Ivy · Senecio niveoaureus4 species SinningiaBrazilian Gloxinia1 species SoleiroliaMind Your Own Business1 species SpathiphyllumPeace Lily1 species StapeliaCarrion Flower1 species StephanotisBridalwreath · Jukti2 species StrelitziaBird-Of-Paradise Tree · Bird Of Paradise · African Desert Banana3 species StreptocarpusFalse African Violet · African-violet · African Violet3 species StrobilanthesRed Ivy · Persian Shield2 species StromantheStromanthe Triostar · Stromanthe Triostar2 species SyngoniumAmerican Evergreen · Fivefingers2 species

TetrapanaxRice Paper Plant1 species ThaumatophyllumTree Philodendron · Xanadu · Thaumatophyllum undulatum3 species TillandsiaSpanish Moss · Ballmoss · Blushing Bride6 species TradescantiaInchplant · Purple Queen · Small-leaf Spiderwort8 species

VandaOrchid1 species

XanthosomaArrowleaf Elephant's Ear · Purplestem Taro · Capote3 species

YuccaSpineless Yucca · Beaked Yucca · Banana Yucca11 species

ZamiaFlorida Arrowroot · Cardboard Palm2 species ZamioculcasZZ Plant1 species ZantedeschiaCalla Lily · Pink Arum · Spotted Arum3 species