Caucasian Rock Cress | Perennial | Groundcover | Rock Gardens
Seed Treatment
Cold Stratification: To improve germination, place seeds in a moist paper towel, seal in a plastic bag, and refrigerate for 3–4 weeks at 4°C (40°F).
If seedlings begin to emerge in the fridge, remove them immediately and plant them carefully.
Optimum Temperature
Germination occurs best at 18–22°C (64–72°F).
Germination Time
Under ideal conditions: 14–21 days
Under suboptimal conditions: Up to 35 days
Sowing Instructions
- Surface sow: Do not cover the seeds; they need light to germinate.
- Sow on moist, well-draining seed-starting mix.
- Mist gently to keep surface moist but not soggy.
Watering
Keep the soil evenly moist during germination. Reduce watering once seedlings are established.
Light Requirements
Provide bright, indirect light or partial sun during germination. Once established, plants thrive in full sun to part shade.
Transplanting
Transplant seedlings when they have 2–3 sets of true leaves. Handle with care to avoid root disturbance.
Aftercare
- Prefers well-draining, sandy or loamy soil.
- Drought-tolerant once mature. Water moderately.
- Deadhead to prolong bloom and maintain compact growth.
Bloom Time
Early spring | Fragrant flowers | Attracts pollinators