Species Arctic Rockcress
white flowers with yellow stamens, green leaves and stems

Arctic Rockcress

Arabidopsis arenosa subsp. arenosa

Arctic Rockcress (Arabidopsis arenosa subsp. arenosa) is a hardy, low-growing subarctic and boreal plant. It is commonly found in the Arctic, the Arctic tundra and Arctic fells. Its succulent leaves, in a distinctive arrowhead-shape, grow to a height of up to 16 inches. Its beautiful four-petaled, white flowers, have been described as “fairy lamps”, and its distinctive three-parted seed capsule often contains hundreds of black seeds. It is drought and salt-tolerant and can adapt to a wide range of conditions, from wet, nutrient-rich meadows to dry, infertile areas. Arctic Rockcress is a valuable resource for pollinators in the Arctic, providing much needed nectar and pollen for bees and other insects.

Watering:

Minimal

Hardiness Zone:

Sun:

full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Care Level:

Medium

watering

The Blue Limestone Columbine, Aquilegia jonesii, should be watered whenever the top 1 - 2 inches of soil have become dry. This is best achieved by sticking your finger into the soil around the plant and feeling how dry or moist it is. In general, it should receive a thorough watering once or twice per week, depending on the climate and how much sun the plant receives. When watering, it is important not to overwater the plant, as this can cause root rot. If in doubt, it is often better to underwater than overwater. Additionally, Aquilegia jonesii prefers well-draining soil as sitting in wet soil can cause root decay and other issues.

sunlight

Blue Limestone Columbine requires full sun to partial shade. This plant species does best when it receives 4-6 hours of direct sunlight per day, preferably in the morning. Avoid direct sunlight for more than 6 hours a day as it may cause damage to its leaves. The Columbine needs some shade during the hottest part of the day to keep its foliage from drying out. Blue Limestone Columbine should be planted in an area that receives strong reflected light off of nearby objects such as a building or rock.

pruning

Blue Limestone Columbine is a hardy deciduous perennial. Pruning should take place in late winter or early spring, before the new growth season begins. Trim off any dead stems and spent flowers, and thin out crowded or crossed branches to help the plant maintain its natural shape. Cut back the plant by a third or more to encourage strong, colourful new growth. Avoid drastic pruning, as Blue Limestone Columbine does not respond as well to being heavily cut.

⚠️ 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.