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Douglas Iris

About Douglas Iris

Douglas Iris is a relatively rare houseplant 🌿 that needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Douglas Iris likes soil that is good at retaining moisture. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Douglas Iris belongs to the Iris genus, and is native to Southwestern North America.

⚠️ Douglas Iris is extremely dangerous if consumed. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian immediately. These plants are not recommended for homes with children, cats, or dogs.

Taxonomy

Scientific name

Iris douglasiana

Genus

Iris

Family

Iridaceae

Order

Asparagales

How to care for Douglas Iris

💦 Water

How often to water your Douglas Iris

Douglas Iris needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Douglas Iris in your home

Douglas Iris love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Douglas Iris does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Douglas Iris in your home 🏡.

🪴 Nutrients

How to fertilize Douglas Iris

Nutrient, fertilizer, and repotting needs for Douglas Iris: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Douglas Iris after it doubles in size or once a year—whichever comes first.

Browse #DouglasIris

💡 FAQs

💦 Water Needs

Douglas Iris prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Douglas Iris Water Frequency →

Douglas Iris Root Rot →

☀️ Sunlight Needs

Douglas Iris requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Douglas Iris Light Requirements →

Douglas Iris Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Douglas Iris is extremely dangerous if consumed. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian immediately. Douglas Iris is not recommended for homes with children, cats, or dogs.

🪴 Soil

Douglas Iris is very sensitive to dry soil, so choose a potting soil that retains moisture. A good soil will still drain well and contain lots of organic matter such as coco coir or sphagnum moss.

Best Soil Mix for Douglas Iris →

Best Pots for Douglas Iris →

When and How to Successfully Repot Douglas Iris →

What Are Healthy Douglas Iris Roots →

💩 Fertilizer

Douglas Iris should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as it’s refreshed yearly, you shouldn’t need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Douglas Iris →

⬆️ ⬇️ Growth Pattern

Douglas Iris grows vertically and new growth will emerge from the top of the plant.

Douglas Iris Lifecycle →

Douglas Iris Size Guide →

How and When to Prune Douglas Iris →

🌦️ Growing Outdoors

USDA Hardiness Zone
Douglas Iris can be grown outdoors in USDA Hardiness Zones 7a-9b. Find your local hardiness zone here.

Douglas Iris Temperature Tolerance →

Douglas Iris Hardiness Zones →

Landscaping Ideas with Douglas Iris →

When to Plant Douglas Iris →

How to Plant Douglas Iris →

Where to Plant Douglas Iris →

Winter Care for Douglas Iris →

Best Companion Plants for Douglas Iris →

Is Douglas Iris a Weed? →

🍂 Yellow Leaves

Yellow leaves aren’t always a reason to panic, and can be a normal part of a plant’s life cycle. Unless brand new leaves are turning yellow or all the leaves change color at once, it’s likely just your plant shedding old leaves.

Overwatering and root rot are the most likely cause of problems in Douglas Iris, since they are sensitive to wet soil. The leaves may also appear to be curling or drooping. Less often, yellow leaves are caused by underwatering, nutrient deficiencies, or pests.

Replace soggy soil with fresh, dry soil and download Greg to make sure your plant never gets overwatered again!

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.