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B&Q£5.99Visit shop B&Q - Hollyhock Creme De Cassis 1 Seed Packet (50 Seeds + 50% Extra Free)
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This guide is for gardeners looking to add stunning, edible blooms to cottage or wildlife gardens. The Thompson & Morgan Hollyhock 'Crème de Cassis' offers unique blackcurrant-veined flowers that fade to a softer berry shade, attracting pollinators and providing culinary interest. A potential caveat is its need for a sheltered spot and well-drained soil to thrive. Key features include its RHS award for pollinators, versatile use in baking and syrups, and a hardy perennial nature.
| Model Part Number | 38461 |
|---|---|
| Brand | Thompson & Morgan |
You can sow seeds from February to March indoors, or from September to October outdoors. For earlier blooms and stronger plants, especially in heavy soils, consider sowing in a cool greenhouse in late summer and overwintering.
Plant seedlings at least 45cm (18in) apart, but for optimal air circulation and disease prevention, spacing them 60cm (24in) apart is recommended.
Yes, the flowers are edible. They can be crystallised for cake decorations or used to make a delicate syrup for desserts and drinks.
Hollyhocks prefer fertile, well-drained soil. Improving heavy or poorly drained soil is recommended for best results.
Hollyhocks grow very tall and can be susceptible to wind damage. A sheltered position helps prevent the stems from bending or breaking, ensuring the plant maintains its upright form.
This means the plant has been recognized by the Royal Horticultural Society for its value in attracting and supporting bees and other pollinating insects, contributing positively to garden biodiversity.
These hollyhocks can reach a height of up to 180cm (approximately 71 inches).
Ensure seeds are not buried too deeply, that light is reaching them, and that the germination temperature (15-20°C) is maintained. Check compost moisture levels; it should be damp but not waterlogged.
Check soil drainage. Wilting can indicate overwatering or poor drainage. Ensure the soil is well-draining. If underwatered, water thoroughly at the base of the plant.
Improve air circulation by spacing plants adequately (60cm apart). Remove and destroy affected leaves promptly. Avoid overhead watering. Fungicides can be used as a preventative measure, but good cultural practices are key.
Provide support by staking the plants early on, especially if grown in an exposed or windy location. Ensure plants are in a sheltered spot as recommended.
Sowing: Sow seeds either February to March indoors or September to October outdoors. For indoor sowing, use a good, free-draining, damp seed compost. Surface sow and cover very lightly with compost or vermiculite. Germination occurs best in a propagator or sealed container at 15-20°C (59-68°F). Do not exclude light, as it aids germination. For late summer sowing, use a cool greenhouse and overwinter plants in cool, well-lit conditions for larger plants the following spring, especially recommended for heavy or poorly drained soils.
Transplanting: Once seedlings are large enough to handle, transplant them into trays or 7.5cm (3in) pots. Grow them on in cooler conditions for 10-15 days before planting outdoors.
Planting Out: Plant outdoors after all risk of frost has passed. Space plants at least 45cm (18in) apart, and ideally 60cm (24in) apart to ensure good air circulation and help prevent fungal diseases like hollyhock rust.
Position: Choose a sunny border with fertile, well-drained soil. A position sheltered from strong winds is crucial to prevent the tall stems from breaking.
Care: Water regularly, especially during dry periods. Deadhead spent flowers to encourage further blooming. Consider staking taller plants if they are in an exposed location. Ensure good air circulation around the plants.
