Clarkia (Clarkia unguiculata), known as the porcelain cup, is an annual plant from the forget-me-not family, native to California and Chile. Reaching up to one meter in height, it features dark foliage with reddish veins and vibrant flowers, creating a striking visual contrast in the garden. The plant is undemanding: it grows easily in loose, slightly acidic soil, prefers sunny spots and moderate moisture. To improve planting conditions, it is recommended to dig over the area, apply fertilizers high in potassium, and add peat or lime powder if necessary, depending on the soil pH.
Growing from seeds is simple even for beginners: before sowing, seeds are treated with a weak manganese solution to prevent diseases. Seedlings are planted in boxes in March. After true leaves appear, they are pricked out and transplanted into open ground in early May. The distance between plants should be at least 20 cm, and pinching off and removing withered flowers promote the formation of lush bushes.
Clarkia blooms quickly: the first pink or white buds appear about two months after planting and continue to bloom until October. Flowers are often called 'cherry blossoms' due to their brightness and saturation, and the variety of shades makes the plant popular in mixed borders with roses, chamomile, peonies, oleander, or delphinium. The plant easily reproduces by self-seeding, and the seeds undergo cold stratification, which promotes healthier growth and larger flowers.
