For best results, sow seeds indoors 6-8 weeks before the last expected frost.

To start strawflowers (Xerochrysum bracteatum) indoors using soil blocks, prepare the soil blocks with a well-draining seed-starting mix, moistening it until it holds together but isn’t overly wet. Fill each block with the mix, then scatter a few seeds on the surface of each block. Lightly press the seeds into the mix, but do not cover them, as strawflower seeds need light to germinate. Place the soil blocks under grow lights or in a bright location, maintaining a temperature of 70-75°F (21-24°C). Keep the soil consistently moist, but avoid waterlogging by misting the surface gently. Germination usually occurs within 7 to 14 days, setting the stage for healthy seedlings.

Once your strawflower seedlings have developed 2-3 true leaves and are robust, it’s time to transplant them. If you’re moving them outdoors, wait until after the last frost date and gradually harden off the plants by exposing them to outdoor conditions over a week. Choose a sunny spot with well-drained soil, and transplant the seedlings into larger pots or directly into the garden, spacing them about 12 inches apart. Continue to provide consistent moisture and light to support their growth. If transplanting into pots, ensure they have adequate drainage and keep the plants in a bright location. With proper care, your strawflowers will thrive and reward you with vibrant blooms throughout the growing season.

To harvest strawflowers (Xerochrysum bracteatum), wait until the blooms are fully open and the petals are dry and papery, indicating they are at their peak for both fresh use and drying. Use sharp, clean shears to cut the stems about 1-2 inches below the flower head, ideally in the morning when the flowers are fully hydrated to avoid wilting. If you plan to dry the flowers, remove any excess foliage from the stems and bundle them in small groups, securing each bundle with a rubber band or string. Hang the bundles upside down in a dry, well-ventilated area away from direct sunlight to ensure proper drying and prevent mold. This method will help maintain the vibrant colors and shape of the strawflowers for lasting beauty in both fresh and dried arrangements.