Plant Care Royal Fern

Royal Fern

About Royal Fern

Osmunda regalis is a tall, deciduous fern. It usually occurs on moist bluffs and ledges and along streams. It is best grown in medium to wet soils in part shade. It prefers moist, rich, humusy, acidic soils and cool summer climates.

Taxonomy

Osmunda regalis
Osmunda
Osmundaceae
Osmundales

Also known as

Flowering fern

How to care for Royal Fern

💦 Water

How often to water your Royal Fern

Water needs for Royal Fern
0.5 cups
every 9

Royal Fern 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.

Calculate water needs of Royal Fern

Water 0.5 cups every
9

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Royal Fern in your home

Light needs and placement for plant Royal Fern: 1ft from a window
1ft or less from
a window

Royal Fern love being close to bright, sunny windows 😎.

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

Royal Fern does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Royal Fern

Nutrient, fertilizer, and repotting needs for Royal Fern: 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 Royal Fern after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

Royal Fern is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Benefits of Growing Royal Fern →

Common Royal Fern Problems →


💦 Water Needs

Royal Fern 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.

Royal Fern Water Frequency →

Royal Fern Root Rot →


☀️ Sunlight Needs

Royal Fern 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 🏡.

Royal Fern Light Requirements →

Royal Fern Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.


🪴 Soil

Royal Fern does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!

When and How to Successfully Repot Royal Fern →


💩 Fertilizer

Royal Fern 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 Royal Fern →


⬆️ ⬇️ Growth Pattern

Royal Fern grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Royal Fern →


🌦️ Growing Outdoors

USDA Hardiness Zone
Royal Fern can be grown outdoors in USDA Hardiness Zones 3a-10b. Find your local hardiness zone here.

Royal Fern Temperature Tolerance →


🧐 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.


Care Summary for Royal Fern

Royal Fern

Royal Fern


Greg recommends:

Water

0.5 cups every 9 days

Placement

< 1ft from a window

Nutrients

Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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