'Oxycedre' Sunflower (Heliopsis helianthoides) is a wild plant seed product offered by Northern Wildflowers. The 'Oxycedre' Sunflower (Heliopsis helianthoides) offered by seed company Northern Wildflowers is a robust and attractive perennial with yellow flowers resembling small sunflowers. Growing between 3 and 5 feet tall, this plant blooms from June to September and thrives in full sun to partial shade. Suitable for hardiness zones 3 to 8, it is ideal for prairie gardens and flowerbeds, adding a touch of color throughout the summer. Height: Approximately 3 to 5 feet. Exposure: Full to partial sun. Soil: Dry to medium, well-drained. Watering: Drought tolerant.

For sowing, follow the depth, period, pretreatment, and duration indicated on the product packet. Keep the seedbed consistently moist during germination without saturating it, then adjust watering according to observed conditions. Careful soil preparation, good contact with the substrate, and constant monitoring promote uniform establishment. Keep the packet closed in a cool, dry, and dark place until sowing. For sowing, follow the depth, period, pretreatment, and duration indicated on the product packet.

The supplier associates this product with native flora. Published information links it to butterflies and pollinating insects. Keep the seedbed consistently moist during germination without saturating it, then adjust watering according to observed conditions. Careful soil preparation, good contact with the substrate, and constant monitoring promote uniform establishment. Keep the packet closed in a cool, dry, and dark place until sowing. Keep the seedbed consistently moist during germination without saturating it, then adjust watering according to observed conditions.