How to Grow Caucasian Rockcress Old Gold
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Caucasian Rockcress Old Gold
Arabis caucasica 'Old Gold'
flowerCaucasian Rockcress 'Old Gold' is a compact, semi-evergreen perennial ground cover with soft yellow-variegated foliage that develops golden tones in cooler seasons. It produces delicate white or pale pink flowers in spring and is valued for its ornamental foliage and low-growing habit. This hardy cultivar is excellent for rock gardens, borders, and alpine troughs.
When should you plant Caucasian Rockcress Old Gold in your zone?
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Example Caucasian Rockcress Old Gold timeline · Pittsburgh, PA (Zone 6b)
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Plant Caucasian Rockcress Old Gold
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Caucasian Rockcress Old Gold blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 4-8, with cold hardiness to zone 3
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Get my Caucasian Rockcress Old Gold timeline →Growth Stages
Germination & Seedling
2-3 weeksTiny rosettes with cotyledons and first true leaves emerging; foliage begins showing subtle yellow variegation
Keep soil consistently moist but not waterlogged. Provide bright light. Thin seedlings to appropriate spacing once they have 2-3 true leaves.
Bud Formation
2-3 weeksDense flower spikes emerging from rosette centers; pale buds forming along upright stems; foliage develops deeper golden tones in cool weather
Reduce nitrogen fertilization to encourage flowering. Ensure excellent drainage during this stage. Monitor for early pest activity.
Flowering
4-6 weeks (typically April-May in temperate zones)Multiple short spikes (4-8 inches tall) covered with small white to pale pink four-petaled flowers above variegated mounding foliage
Deadhead spent flowers to extend bloom and maintain tidiness. Water at soil level only. Apply balanced low-nitrogen fertilizer sparingly if needed.
Post-Bloom & Dormancy
6-8 monthsFlowering diminishes; foliage remains attractive through summer and into fall, developing richer golden tones in autumn; may stay semi-evergreen in mild winters
Cut back lanky growth by one-third in summer if needed to maintain compact form. Reduce watering gradually. Protect from winter moisture with gravel mulch; avoid heavy snow cover that traps moisture.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Use fine netting to exclude adult butterflies. Hand-pick larvae. Apply neem oil or spinosad if infestation occurs. Encourage natural predators.
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Row covers during vulnerable seedling stage. Dust with diatomaceous earth. Insecticidal soap for severe infestations.
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Ensure excellent drainage and gravel mulch to deter. Hand-pick. Beer traps or copper barriers. Remove debris that provides hiding spots.
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(fungal, Pythium and Phytophthora spp.)
Prevent through exceptional drainage and gravel mulch. Avoid overhead watering. Reduce winter moisture. Remove affected plants promptly.
Uses
Rock Garden & Alpine Display
OrnamentalThe variegated golden foliage and spring flowers make this plant exceptional for rock gardens, alpine troughs, and scree gardens. Its compact mounding form provides year-round visual interest. [source]
Ground Cover & Border Edging
HouseholdExcellent low-maintenance ground cover for sunny slopes, stone walls, and border edging. The dense habit prevents weed growth while the striking foliage adds color contrast. [source]
Dried Flower Arrangements
CraftDelicate flower spikes can be dried and used in floral arrangements, providing delicate texture and pale color to dried bouquets. [source]
Early Season Pollinator Support
WildlifeSpring flowers attract early-emerging bees and other pollinators, providing crucial early-season nectar and pollen when food sources are scarce. [source]
Harvest Tips
Caucasian Rockcress is ornamental and not typically harvested for consumption. Cut stems of fresh flowers for short-lived bouquets if desired in spring. Deadhead faded flowers regularly to maintain appearance and encourage continued blooming.
Fun Facts
- 🌱 Caucasian Rockcress is native to the Caucasus Mountains and was selected and bred into the 'Old Gold' cultivar specifically for its superior variegated golden foliage that intensifies in cool weather.
- 🌱 Despite being a member of the Brassicaceae (cabbage family), this ornamental rockcress produces foliage so tough and bitter that it is generally unpalatable to herbivores, helping it thrive in rocky, exposed alpine settings.
- 🌱 'Old Gold' is semi-evergreen, retaining its attractive variegated foliage through most winters, providing welcome color and structure to alpine and rock gardens during the dormant season.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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