Plant Care Austroblechnum Penna-Marina

Austroblechnum Penna-Marina

Also known as

Austroblechnum penna-marina, Antarctic hard-fern, alpine water fern, pinque and Austroblechnum penna-marina


Blechnum penna-marina

How to care for Austroblechnum Penna-Marina


How often to water your Austroblechnum Penna-Marina

Water needs for Austroblechnum Penna-Marina
0.5 cups
every 7

Austroblechnum Penna-Marina needs 0.5 cups of water every 7 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 Austroblechnum Penna-Marina

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Austroblechnum Penna-Marina in your home

Light needs and placement for plant Austroblechnum Penna-Marina: 3ft from a window
3ft or less from
a window

Austroblechnum Penna-Marina may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

Select your region to see how the current weather in your area affects the placement of Austroblechnum Penna-Marina in your home 🏡.


How to fertilize Austroblechnum Penna-Marina

Nutrient, fertilizer, and repotting needs for Austroblechnum Penna-Marina: 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 Austroblechnum Penna-Marina after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs

Care Summary for Austroblechnum Penna-Marina

Austroblechnum Penna-Marina

Austroblechnum Penna-Marina

Greg recommends:


0.5 cups every 7 days


< 3ft from a window


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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