Species Korean rock fern
lime foliage with green stems

Korean rock fern

Polystichum luctuosum ( syn. P. tsus-simense )

Korean rock fern (Polystichum luctuosum) is a species of fern native to East Asia. It produces soft green fronds which form a low mound of foliage. The fronds are semi-evergreen and leather-like in texture. The leaves often grow in a rosette pattern. The bright green foliage creates a beautiful contrast against the dark, volcanic rocks of its habitat. Grown in part to full shade, this tough fern makes a great addition to any shady woodland garden. It is also slow spreading, making it ideal for rock gardens.

Cycle:

Perennial

Watering:

Frequent

Hardiness Zone:

11

Sun:

filtered shade,part sun/part shade

Leaf:

Yes

Leaf Color:

green,yellow

Growth Rate:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Tropical:

Yes

Indoors:

Yes

Care Level:

Medium

watering

Balfour Aralia plants should be watered sparingly, typically aiming for about once per week. Depending on the environment, however, more or less water may be necessary. In warmer climates, more frequent watering (every 3-5 days) may be required, whereas in cooler climates, watering every 10-14 days may be sufficient. When watering, thoroughly drench the soil and ensure that all of the soil is evenly moist. Allow the soil to almost completely dry out before the next watering.

sunlight

The Balfour Aralia is a shade-loving plant species that prefers partial to full shade, rather than direct sunlight. It is important to note that while the plant can tolerate some direct sunlight, too much can cause the leaves to scorch. Therefore, if it does get any direct sunlight, it should be limited to less than 2 hours a day during the morning or late afternoon. Additionally, you should make sure to place it away from any direct midday sunlight as the intense heat and UV radiation can damage the foliage.

pruning

Pruning for a Balfour aralia (Polyscias balfouriana) is best done in the spring or summer months. Depending on the specific care needs of the plant, pruning should be done anywhere between once a month up to once every couple of months. If pruning too often, it can be damaging to the plant. When it comes to how much, light pruning should be done just to remove any discoloration or withered leaves that are visible. Aggressive pruning should be avoided unless the plant is wildly overgrown.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Harvest Fruit

Hardiness Map

⚠️ Perenual and its members cannot be held liable for any health issues that may arise from the information provided on the website or from using any of the plants found on the site. The information provided is intended to be used as general guidelines only.