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Garden Plants

Growing guides for garden plants — soil, sun, hardiness, pruning and pests.

1,015 published · page 23 of 43

Horned Poppy (Glaucium flavum)Papaveraceae

Horned Poppy

Glaucium flavum

Glaucium flavum, commonly known as the Yellow Horned Poppy or Sea Poppy, is a striking biennial or short-lived perennial in the…

AsthmaBronchitisPersistent Coughs
Hosta (Hosta fortunei)Asparagaceae

Hosta

Hosta fortunei

Hosta fortunei, commonly known as Hosta or Plantain Lily, is a highly esteemed herbaceous perennial belonging to the…

Minor Skin Irritations (Traditional, Unverified)Superficial Wounds (Folk Remedy, Unproven)Localized Inflammation (Historical Topical Claim)
Hosta Sieboldiana (Hosta sieboldiana)Asparagaceae

Hosta Sieboldiana

Hosta sieboldiana

Hosta sieboldiana, commonly known as Siebold's Hosta or Giant Hosta, is a truly magnificent and robust herbaceous perennial. It…

Oxidative stress (exploratory)Inflammatory conditions (hypothetical)Digestive discomfort (folk use of related species)
Hydrangea (Hydrangea macrophylla)Hydrangeaceae

Hydrangea

Hydrangea macrophylla

Hydrangea macrophylla, commonly known as Bigleaf Hydrangea, Mophead Hydrangea, or Lacecap Hydrangea, is a captivating deciduous…

Urinary Tract Issues (Historical use of *related* Hydrangea species)Kidney Stones (Traditional use of *related* Hydrangea species)Inflammation (Preclinical research on *isolated constituents* from Hydrangea)
Hylotelephium Spectabile (Hylotelephium spectabile)Various

Hylotelephium Spectabile

Hylotelephium spectabile

Hylotelephium spectabile, commonly known as Autumn Joy Sedum or Showy Stonecrop, is a resilient and aesthetically appealing…

Skin inflammationsMinor cutsAbrasions
Hypericum (Hypericum calycinum)Hypericaceae

Hypericum

Hypericum calycinum

Hypericum calycinum, commonly known as Rose of Sharon, Aaron's Beard, or Creeping St. John's Wort, is a resilient, low-growing,…

Mild to moderate depressionAnxiety disordersNervous tension
Hypericum Kalmianum (Hypericum kalmianum)Hypericaceae

Hypericum Kalmianum

Hypericum kalmianum

Hypericum kalmianum, commonly known as Kalm's St. John's Wort, is an enchanting deciduous to semi-evergreen shrub native to the…

Mild to Moderate Depression (H. perforatum)Anxiety (H. perforatum)Premenstrual Syndrome (H. perforatum)
Idesia Polycarpa (Idesia polycarpa)Salicaceae

Idesia Polycarpa

Idesia polycarpa

Idesia polycarpa, often celebrated as the Chinese Wonder Tree or simply Idesia, stands as a captivating deciduous tree native to…

No established therapeutic claimsOxidative stress (potential research area)Inflammation (hypothetical research area)
Impatiens Walleriana (Impatiens walleriana)Balsaminaceae

Impatiens Walleriana

Impatiens walleriana

Impatiens walleriana, commonly known as Busy Lizzie or Waller's Balsam, is a widely cherished herbaceous perennial. In temperate…

Minor Skin Irritations (Topical, Traditional Impatiens spp.)Insect Bite Relief (Topical, Traditional Impatiens spp.)Stress Reduction (Horticultural Therapy)
Imperata Cylindrica Red Baron (Imperata cylindrica)Poaceae (Grass Family)

Imperata Cylindrica Red Baron

Imperata cylindrica

Imperata cylindrica, commonly known as Cogongrass or Japanese Blood Grass, is a resilient perennial grass in the Poaceae family.…

Epistaxis (nosebleeds)Hematemesis (vomiting blood)Hematuria (blood in urine)
Indian Pink (Spigelia marilandica)Loganiaceae

Indian Pink

Spigelia marilandica

Spigelia marilandica, commonly known as Indian Pink, Pinkroot, or Wormgrass, is a strikingly beautiful herbaceous perennial. It…

Intestinal Parasites (historically treated)Roundworm Infestations (traditional)Tapeworm Infections (historical vermifuge)
Indian Strawberry (Duchesnea indica)Rosaceae

Indian Strawberry

Duchesnea indica

Potentilla indica is a resilient perennial herbaceous plant in the diverse Rosaceae family. Many people still know it by its…

InflammationOxidative StressDiabetic Kidney Disease
Indian Summer Alstroemeria (Alstroemeria indian Summer)Alstroemeriaceae

Indian Summer Alstroemeria

Alstroemeria indian Summer

Alstroemeria 'Indian Summer', a celebrated hybrid within the Alstroemeriaceae family, is commonly known as Peruvian Lily, Lily…

Anti-inflammatoryAntioxidantWound healing
Indiangrass (Sorghastrum nutans)Poaceae (Grass Family)

Indiangrass

Sorghastrum nutans

Sorghastrum nutans, commonly known as Indiangrass, stands as a quintessential perennial warm-season grass, a defining species of…

Not traditionally used for human diseasesEcological restorationSoil stabilization
Indigofera Heterantha (Indigofera heterantha)Fabaceae (Leguminosae)

Indigofera Heterantha

Indigofera heterantha

Indigofera heterantha, commonly known as Himalayan Indigo or Indigo Bush, is a captivating deciduous shrub belonging to the…

Gastrointestinal disorders (traditional use)Abdominal discomfort (traditional use)Digestive issues
Inula Helenium (Inula helenium)Asteraceae

Inula Helenium

Inula helenium

Inula helenium, universally recognized as elecampane, is a commanding perennial herbaceous plant belonging to the Asteraceae…

BronchitisChronic CoughsAsthma (symptomatic relief)
Inula Magnifica (Inula magnifica)Various

Inula Magnifica

Inula magnifica

Inula Magnifica, commonly known as Giant Fleabane, Magnificent Elecampane, or Showy Elecampane, is a truly majestic herbaceous…

CoughsBronchitisRespiratory Ailments
Ipomoea Tricolor (Ipomoea tricolor)Convolvulaceae

Ipomoea Tricolor

Ipomoea tricolor

Ipomoea tricolor, commonly known as Morning Glory, is a captivating annual vine belonging to the Convolvulaceae family, renowned…

Spiritual exploration (traditional application)Divinatory states (traditional application)Anxiety relief (ceremonial context, not self-treatment)
Irish Moss (Sagina subulata)Caryophyllaceae

Irish Moss

Sagina subulata

Sagina subulata is commonly known as Irish Moss or Scotch Moss. This charming, evergreen perennial belongs to the…

None
Italian Arum (Arum italicum)Araceae

Italian Arum

Arum italicum

Arum italicum, commonly known as Italian Arum, Lords-and-Ladies, or Cuckoo-Pint, is a captivating perennial herbaceous plant…

None (due to high toxicity and lack of safe application)Historically targeted rheumatic conditions (external, highly dangerous)Historically targeted skin irritations (external, highly dangerous)
Itea Virginica (Itea virginica)Iteaceae

Itea Virginica

Itea virginica

Itea virginica, commonly recognized as Virginia sweetspire or simply sweetspire, is an elegant deciduous shrub indigenous to the…

Minor Bleeding (topical)Skin Irritations (topical)Minor Inflammation (hypothetical)
Ixia (Ixia viridiflora)Iridaceae

Ixia

Ixia viridiflora

Ixia viridiflora, commonly known as the green-flowered ixia or emerald ixia, is a captivating cormous perennial belonging to the…

Oxidative stressInflammationBacterial infections (potential)
Ixora Maui (Ixora hybrid)Rubiaceae

Ixora Maui

Ixora hybrid

Ixora Maui is a popular and visually striking cultivar. It is a hybrid within the expansive genus Ixora, which belongs to the…

InflammationOxidative StressBacterial Infections
Jack in the Pulpit (Arisaema triphyllum)Araceae

Jack in the Pulpit

Arisaema triphyllum

Arisaema triphyllum, commonly known as Jack-in-the-Pulpit, is a distinctive perennial herbaceous plant belonging to the Araceae…

Rheumatism (external)Skin ulcers (external)Swellings (external)