Plantes d’extérieur
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Les jardins de l'écoumène
Zinnia haageana ‘Aztec Burgundy Bicolor’ — Aztec Burgundy Bicolor Zinnia. Organic Aztec Burgundy Bicolour zinnia is a bright annual flower that immediately brings a sense of warmth and richness to both garden beds and container arrangements. Compact and freely flowering, this Mexican zinnia covers itself in double blooms with rich purple and burgundy tones, delicately shaded with yellow and white throughout the summer. Its generous flowering is continually renewed until frost arrives, creating colourful ribbons along the edges of beds and keeping those borders lively through the growing season. The flowers are appreciated by bees and butterflies, bringing activity to the garden while contributing a generous display of ornamental colour around the other plants.
Recommended planting period: after the last frost. The depth to be respected is 0.5 to 1 cm (0.2 to 0.4 in). Germination usually takes 5 to 12 days. For germination, keep the soil at 21 to 27°C (70 to 81°F). Transplant the young flowering plants once their true leaves have developed and their roots hold the root ball together. Handle the seedlings gently and avoid squeezing their delicate stems. Under grow lights, gradually space the containers farther apart so that the foliage does not overlap. Hardening off then prepares the plants for outdoor sunlight, wind and changes in temperature.
Plan the arrangement around each plant’s mature habit and the distance from which the flowers will be viewed. Position smaller flowers close to a path for easy viewing, while taller plants can provide a focal point at the back of a bed. Repeat groups of the same variety to create a clear, visible colour pattern. Leave room to reach the plants for cutting, and avoid crowding clumps simply to fill the space right away. Choose between prolonging flowering and keeping flower seeds on a few stems. Deadheading is suitable for many annuals, while developing seed heads and dried flower clusters can also provide ornamental interest.
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