Growing strawflowers (Xerochrysum bracteatum) from seeds is a relatively easy and rewarding process. These flowers are known for their papery blooms that retain their color even after drying. Here's a step-by-step guide on how to grow strawflower seeds:
Materials Needed:
Strawflower seeds
Well-draining potting mix
Small pots or seed trays
Plastic wrap or a humidity dome
Watering can or spray bottle
Grow lights or a sunny windowsill
Fertilizer (balanced, water-soluble)
Garden space (for transplanting outdoors)
Procedure:
Timing for Planting:
Start strawflower seeds indoors 6-8 weeks before the last expected frost in your area. Strawflowers can also be directly sown outdoors after the last frost.
Preparing Potting Mix:
Use a well-draining potting mix suitable for seed starting. Strawflowers prefer soil that doesn't stay overly wet.
Planting Seeds:
Plant strawflower seeds about 1/8 to 1/4 inch deep in small pots or seed trays. Place one or two seeds per pot. Press the soil gently to ensure good seed-to-soil contact.
Covering Seeds:
Cover the pots or trays with plastic wrap or use a humidity dome to create a warm and humid environment for germination. This helps retain moisture during the initial stages.
Germination:
Place the pots or trays in a warm location or under grow lights. Strawflower seeds typically germinate within 7-14 days. Once the seedlings emerge, remove the cover.
Providing Light:
Strawflower seedlings require plenty of light. If growing indoors, provide them with at least 6-8 hours of sunlight daily or use grow lights.
Transplanting:
When the strawflower seedlings have developed several sets of true leaves and are large enough to handle, transplant them into larger pots or directly into the garden. Maintain proper spacing.
Outdoor Planting:
If transplanting outdoors, choose a sunny location with well-draining soil. Space the strawflowers according to the recommended guidelines for the specific variety.
Watering:
Keep the soil consistently moist, especially during dry periods. Once established, strawflowers are somewhat drought-tolerant, but consistent watering encourages better blooms.
Fertilization:
Use a balanced, water-soluble fertilizer diluted to half the recommended strength. Fertilize every 3-4 weeks during the growing season.
Deadheading (Optional):
Deadheading, or removing spent flowers, can encourage continuous blooming. However, strawflowers are valued for their long-lasting blooms, so leaving some for drying purposes is common.
Drying Flowers:
Strawflowers are excellent for drying. Harvest flowers when they are fully open but before they start to fade. Hang them upside down in a cool, dry place to dry.
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