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B&Q£3.99Visit shop B&Q - Sunflower Astra Rose Hardy Annual Semi-Double Flowers Chocolate Centres 1 Packet X 25Seeds By
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Sunflower 'Astra Rose' is ideal for gardeners looking to introduce vintage charm and a delicate color palette to their borders. This hardy annual offers the unique benefit of multi-branching, providing an abundance of semi-double blooms in shades of cream, apricot, and pink over an extended season; however, gardeners should note that it requires consistent dead-heading to maintain this continuous flowering throughout the summer.
| Model Part Number | KF7245 |
|---|---|
| Brand | Thompson & Morgan |
Yes, they grow well in large, deep containers as long as you ensure they have high-quality, well-draining potting compost and receive plenty of sunlight.
While they are generally sturdy, if your garden is in a very windy location, providing a small bamboo cane for support can help protect the branching stems.
Dead-head as soon as the petals begin to fade or drop. This prevents the plant from putting energy into seed production.
Sunflowers are generally considered non-toxic to cats, dogs, and horses.
As a modern garden variety, the seeds may not grow 'true' to the parent plant, so it is recommended to buy fresh seeds annually for the best results.
Check soil drainage; sunflowers dislike 'wet feet' and may suffer root rot if the soil is too heavy or waterlogged.
The plant is likely not receiving enough direct sunlight; move to a location with full sun exposure.
Sowing Instructions: Seeds can be sown directly outdoors once the danger of frost has passed in early spring or started indoors in individual pots to get a head start on the season.
Location: Choose a spot in full sun, as sunflowers require significant light to develop their pigment and strength.
Soil & Water: Ensure the soil is well-drained. While they enjoy moisture, avoid waterlogged ground which can damage the roots. Apply a balanced liquid fertilizer during the growing season to support the high volume of blooms.
Maintenance: Regular dead-heading is essential. Pinch off spent flowers at the base of the stem to redirect the plant's energy into producing new buds rather than setting seeds.
