Rock cress is a charming perennial plant that adds beauty to any garden.
To ensure your rock cress thrives and flourishes, it’s essential to provide the proper care and maintenance.
Adequate sunlight is crucial for promoting healthy growth and abundant flowering in this resilient perennial plant.
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Soil
Rock cress thrives in well-drained soil that is slightly acidic to neutral in pH.
Additionally, rocky or sandy soil types mimic its natural habitat and are ideal for promoting healthy growth.
Water
Rock cress, once established, is remarkably drought-tolerant and requires minimal watering.
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Generally, rock cress thrives with moderate moisture levels, making it an ideal choice for low-maintenance landscapes.
Fertilizer
For optimal growth, choose a balanced fertilizer with an N-P-K ratio of 10-10-10 or similar.
Additionally, remove any leggy or overgrown stems to promote bushy growth and maintain the plant’s compact form.
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Avoid cutting into old wood, as this can inhibit new growth.
Water the newly potted plant thoroughly and place it in a sunny location.
Monitor the soil moisture and water when the top inch of soil feels dry.
When repotting rock cress, select a slightly larger pot to accommodate its growing root system.
Gently remove the plant from its current pot, being careful not to damage the roots.
Inspect the roots for any signs of disease or overcrowding, and trim away any damaged or circling roots.
Water the repotted rock cress thoroughly and continue to provide proper care as it adjusts to its new container.
Overwintering
In regions with mild winters, rock cress may remain evergreen, requiring minimal protection.
Avoid heavy mulching or covering, which can trap moisture and lead to rot.
Applying a fungicidal spray may also help manage fungal issues.
Some varieties may continue to produce sporadic blooms throughout the summer, especially with deadheading and proper care.
However, the peak bloom period for rock cress is generally during the spring season.
What Do Rock Cress Flowers Look and Smell Like?
Deadhead spent flowers promptly to stimulate continuous blooming and redirect the plant’s energy.
Additionally, dividing overcrowded plants every few years can rejuvenate them and promote better blooming.
Prune back any leggy or overgrown stems to maintain a compact shape and stimulate new growth.
Rock cress typically blooms for a few weeks in spring.
Yes, rock cress is often considered deer resistant due to its strong fragrance.
