Species Lemmon's Rockcress
light-purple flowers and buds with green leaves on red-brown stems

Lemmon's Rockcress

Boechera lemmonii

Lemmon's Rockcress (Boechera lemmonii) is a flowering herb that can be found in dry, rocky places in the western United States, primarily in Utah and Nevada. It has thick, spiny leaves with pale yellow flowers that bloom in the spring. It's an alpine species, preferring full sun and well-drained, nutrient-poor soil. Its shallow root system makes it well adapted to arid environments. Lemmon's Rockcress is an important host plant for several species of butterflies, and its furry seed capsules are a valuable food source for small mammals. It is a hardy species and can thrive with minimal care.

Watering:

Minimal

Hardiness Zone:

Sun:

full sun,part shade

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Care Level:

Medium

watering

Water Graham's Rockcress moderately, once or twice a week in the growing season. Allow the soil to dry out between waterings and then provide enough water to moisten the soil to a depth of 6-8 inches. Water in the mornings and avoid getting the foliage wet. Reduce watering frequency to once a month during the winter months.

sunlight

Graham's Rockcress (Boechera grahamii) is a plant species that thrives in full sun. It prefers direct sun for at least 6 hours each day, and can tolerate partial sun in more extreme climates. It does best in temperatures between 60 and 70 degrees Fahrenheit. Graham's Rockcress is a cold weather plant, so it is best not to expose it to temperatures above 75 degrees Fahrenheit, as that can lead to leaf burn.

pruning

Graham's Rockcress should be pruned sparingly and immediately after flowering is complete. Pruning should remove about 1/3 of the plant's stem. If the plant has become too tall, an additional 1/3 can be removed to help shape the plant. Pruning will encourage the plant to bush out, allowing for more floral display in subsequent flowering seasons. It is best to prune the top of the plant, cutting the stem just above a set of leaves. Pruning is best done in early summer, after flowering is complete.

⚠️ 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.