Boechera yorkii Plant Care
Boechera yorkii S.Boyd
Updated · Sources · How we source care data
Boechera yorkii is a rare species of flowering plant in the mustard family known by the common name Last Chance rockcress. It is endemic to Inyo County, California, where it is known only from the Last Chance Range in Death Valley National Park.
Every 7–10 days
Full sun to partial shade
50–75°F
40–60%
At a glance
How do you care for Boechera yorkii?
Plant Boechera yorkii in full sun to partial shade (USDA zones 12a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 6 months during the growing season.
Where Is the Boechera yorkii Native To?
What Is the Boechera yorkii?
Boechera yorkii (Boechera yorkii) belongs to the Brassicaceae family within the Boechera genus. Boechera yorkii is native to Inyo County, California.
Boechera yorkii displays a low rosette, clumping growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Boechera yorkii produces small white or purple flowers in clusters.
Leaf size: approximately 2 inches.
How Often Should You Water a Boechera yorkii?
Water a young or newly planted Boechera yorkii every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Boechera yorkii Need?
Boechera yorkii thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Boechera yorkii Prefer?
Boechera yorkii tolerates temperatures of 50–75°F. Boechera yorkii prefers humidity levels of 40–60%.
Temperature
50–75°F
Humidity
40–60%
What Soil Mix Works Best for a Boechera yorkii?
Well-draining sandy loam with added organic matter. Good drainage is essential for Boechera yorkii to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Boechera yorkii?
Feed Boechera yorkii every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Boechera yorkii?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter. Avoid low spots where water collects after rain.
Boechera yorkii is suited to USDA Zone 12a.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Boechera yorkii?
Boechera yorkii can spread to about 1 ft (0.2 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.2 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Boechera yorkii?
Prune Boechera yorkii while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Boechera yorkii in Winter?
Boechera yorkii is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Boechera yorkii?
Boechera yorkii can be propagated through seeds, division of clumps. Similar propagation techniques also apply to boechera breweri plant care, which shares the same genus.
Is the Boechera yorkii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Boechera yorkii, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Boechera yorkii?
Boechera yorkii is susceptible to aphids, cabbage worms, flea beetles. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Boechera yorkii Need?
Boechera yorkii grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Boechera yorkii is native to Inyo County, California. In cooler regions, grow Boechera yorkii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Boechera yorkii is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Boechera genus — compare its care with other Boechera species on PlantoScan.
Boechera is part of the Brassicaceae plant family — browse all Brassicaceae genera and species.
Boechera yorkii thrives in bright light and direct sun — see other bright-light plants.
More Boechera Species
Other Boechera species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Boechera yorkii S.Boyd, family Brassicaceae (first published in Madroño 51: 387 (2004)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Boechera yorkii, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
