Save Big On Plant Monitoring! Offer Ends Soon.
Back
Iris pseudacorus
Iris pseudacorus
Iris pseudacorus
Iris pseudacorus

Iris pseudacorus

TAXONOMY

FamilyIridaceae
GenusIris
Zone4

ABOUT

Iris pseudacorus, commonly known as yellow flag or yellow iris, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia, and northwest Africa. This plant thrives in wetland areas and is often found along the edges of ponds, lakes, and rivers. It has a rhizomatous growth habit and can form dense colonies. The plant has a dormancy period during the winter months.

ALSO KNOWN AS

Acorus Adulterinus
Moraea Candolleana
Water Flag
Yellow Flag
Iris acoriformis
Iris acoroides
Iris bastardii
Iris curtopetala
Iris flava
Iris lutea
Iris pallidior
Iris paludosa
Iris palustris
Iris pseudacorus f. longiacuminata
Iris pseudacorus f. nyaradyana
Iris pseudacorus f. submersa
Iris pseudacorus subsp. acoriformis
Iris pseudacorus subsp. bastardii
Iris pseudacorus var. acoriformis
Iris pseudacorus var. acoroides
Iris pseudacorus var. bastardii
Iris pseudacorus var. citrina
Iris pseudacorus var. longifolia
Iris pseudacorus var. ochroleuca
Iris sativa
Limnirion pseudacorus
Limniris pseudoacorus
Pseudo-iris palustris
Vieusseuxia iridioides
Xiphion acoroides
Xiphion pseudoacorus
Xyridion acoroideum
Xyridion pseudacorus
Yellow iris
Yellow water iris

OVERVIEW

WaterVery Wet
SoilLoamy
LightDirect Bright (6 Hours)
Temperature18° C
Humidity70%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Iris pseudacorus requires bright, direct sunlight for optimal growth. It thrives in temperate climates with moderate temperatures and high humidity. The plant prefers consistently wet or waterlogged soil conditions. Regular watering is essential to maintain the moisture levels. It is best grown outdoors in a garden or near a water feature.
Soil
The yellow flag iris prefers loamy soil that is consistently wet or even waterlogged. Good drainage is not a primary concern for this plant, as it thrives in wet conditions. The soil should be rich in nutrients to support its vigorous growth.
Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 is suitable for Iris pseudacorus. Fertilize the plant during the growing season to promote healthy growth and flowering. Apply the fertilizer according to the manufacturer's instructions, typically once a month.
Repotting
Repotting is generally not necessary for Iris pseudacorus, as it is best grown in the ground. However, if grown in a container, repotting should be done every 2-3 years to refresh the soil and provide more space for the rhizomes. Repot in early spring before the growing season begins.
Propagation
Iris pseudacorus can be propagated by dividing the rhizomes. This is best done in late summer or early autumn after the flowering period. Carefully dig up the plant, separate the rhizomes, and replant them in suitable locations. Ensure each division has a healthy portion of rhizome and roots.
Pruning
Pruning is required to maintain the plant's appearance and health. Remove dead or damaged leaves and spent flower stalks after the flowering period. This helps to prevent disease and encourages new growth. Prune in late summer or early autumn.
Toxicity
Iris pseudacorus is toxic to pets and humans if ingested. All parts of the plant contain toxic compounds that can cause gastrointestinal distress, including vomiting and diarrhea. Handle the plant with care and keep it out of reach of children and pets.
REVOLUTIONIZE YOUR PLANT CARE
Make Every Plant Smart
Plant Monitor

Plant Monitor

STAYS IN YOUR PLANT

Accurately measures the core metrics of your plant – soil moisture, light, temperature and humidity - as well as compound metrics such as Vapor Pressure Deficit (VPD) and Growing Degree Days (GDD).

Shop Now
Mobile App

Mobile App

DOWNLOAD ON YOUR DEVICE

Evaluates your plants' data, current weather, seasonality and more to precisely notify you about your plants needs. The app also comes loaded with many extra features to ensure your plants flourish.

newsletter background

Join Our Growing Community

Join for 10% off your first purchase, exclusive offers, better plant care, and more