Alcea rosea 'Blacknight'
Alcea 'Blacknight' is a dramatic hollyhock from the Spotlight series, bred for consistent flowering and strong garden performance. It produces striking single blooms in the deepest shades of purple, almost black, creating a bold vertical accent in midsummer borders.
Tall and architectural, this variety is perfect for adding height at the back of borders or against walls and fences. Thriving in full sun and fertile, well-drained soil, it is a classic cottage garden plant that brings both structure and rich colour to summer displays.
- Single flowers of deep purple to black in summer
- Flowers through midsummer with strong visual impact
- Ideal for garden beds, borders and cottage garden planting
- Best in full sun in a fertile moist but well-drained soil
- Rabbit resistant
- Height 150cm - Spread 50cm
Hollyhock
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EAN code5051424035463
- Pot Size1L (13cm)
- AspectSouth-facing, West-facing
- Attractive to WildlifeAttractive to Bees, Attractive to Butterflies & Moths
- Flower ColourBlack, Purple
- Flower FormSingle
- Flowering MonthJune, July, August
- Foliage ColourGreen
- Foliage TypeDeciduous
- Garden StyleArchitectural, City & Courtyard Garden, Coastal, Cottage & Informal Garden, Wildlife Garden
- Hardiness (RHS rating)H5 -15 to -10ºC. Hardy - cold winter
- Height150cm
- Spread50cm
- MoistureWell-drained
- pHAcid, Alkaline, Neutral
- Plant HabitClump-forming
- Plant TypePerennial
- Planting TypesBorders and Beds
- Season of InterestSummer
- Soil TypeChalk, Loam, Sand
- Special AttributesEasy to Grow, Low Maintenance
- SunlightFull Sun
The majority of our national delivery options fall under the categories below. Certain oversized or age restricted items carry an additional delivery charge, however this will be clearly displayed in your basket before checkout.
Tracked Delivery (Express) - £7.99
Zone 1 - England, Wales & Scotland (excluding Highlands & Islands)
- Orders are dispatched within 3-5 working days
- Parcels are sent via DX or DPD on a next day service, requiring a signature on delivery or safe place instructions
- Fully tracked from door to door with text or email notifications along the way to keep you informed
- 2 hour time slot notification
- Dispatch days Monday - Thursday (excluding Bank Holidays)
- Delivery days Tuesday - Friday
Tracked Delivery (2-4 Days) - £14.99
Zone 2 – Highlands & Islands of Scotland
- Parcels are sent via a tracked 48 service, requiring a signature on delivery or safe place instructions
- Tracking code provided on dispatch. Email or SMS notification on day of delivery
- Orders dispatched within two working days
- Please expect 2-4 days for delivery
- List of applicable postcodes
Tracked Delivery (3-4 Days) - £14.99
Zone 3 – Isle of Man, Isle of Wight & Isles of Scilly
- Parcels are sent via a tracked 48 service, requiring a signature on delivery or safe place instructions
- Tracking code provided on dispatch. Email or SMS notification on day of delivery
- Orders dispatched within two working days
- Please expect 3-4 days for delivery
Parcel Tracking
Your order will be sent using a fully tracked service, providing us with some information on the parcel's status, location and route. It also allows us to provide you with the same information. Once your order has been dispatched you will receive an email (please check spam/junk email folders) with a tracking code and instructions on how this information can be retrieved.
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