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Quick Guide
- An interesting shrub with an upright growth habit and the almost black sword-like foliage
- An incredible useful evergreen shrub for adding year-round foliage interest and structure to the garden
- Great statement plant for the middle of a planted border
- Ideal for adding life and interest to large containers on a patio or deck
Phormium cookianum 'Platts Black', or New Zealand Flax, is a striking ornamental plant that adds a touch of drama and elegance to any landscape. This captivating flax cultivar is known for its deep, rich black-purple foliage, creating a bold statement and providing a stunning contrast in gardens and containers.
With its graceful arching leaves and upright habit, 'Platts Black' reaches a mature height of about 2 meters, making it a versatile choice for both focal points and as part of mixed planting arrangements. Its unique coloration sets it apart from traditional greenery, making it a standout choice for modern and contemporary landscapes.
Hardy and low-maintenance, Phormium cookianum 'Platts Black' thrives in full sun to partial shade and well-draining soil. Its ability to withstand coastal conditions adds to its adaptability and popularity in various regions. Ideal for adding drama to borders, as a striking accent plant, or for creating a bold focal point, 'Platts Black' is a must-have for garden enthusiasts seeking a touch of sophistication and visual impact.
Plant Care
- Trim in late spring taking older stem back down to the plants base
- In autumn remove untidy foliage around the base of the plant
- Older plants will flower in summer so remove these flower stems in autumn after flowering
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EAN code034920
- BrandBoma
- Foliage ColourDark Purple almost black
- ScentNone
- Care GuideEasy
- Growth RateFast
- Drought TolerantYes
- Award of Garden MeritYes
- Bee FriendlyYes
- Soil PHNeutral
Delivery Areas
We deliver within the M25 area of London. For deliveries of Pots & Planters outside this zone, we may be able to help on a case-by-case basis — please contact our sales team at [email protected]. You are also welcome to visit our garden centre in Kentish Town, where our team will be happy to help in person.
Delivery Costs & Delivery Day
Delivery charges are based on postcode zone within the M25. Enter your postcode at the top of this page to see your zone and cost, or check at checkout. You can also select your preferred delivery day at checkout.
Delivery Timeframes
We aim to deliver orders within 2–4 working days. During peak seasons, such as Christmas, delivery times may vary slightly due to increased demand. We will keep you informed at every stage.
Click & Collect
We encourage you to collect from our garden centre in Kentish Town — it saves on delivery costs and gives you the chance to see our full range of plants and products in person.
All Click & Collect orders must be collected within 7 days of being ready, unless a later date has been arranged with us in advance. If an order is not collected within this time, it will be cancelled and a refund issued.
Returns Policy
If you need to return an item, please contact us within 14 days of receipt to arrange a return or exchange. Products must be in their original condition and packaging. Plants may be non-refundable unless they arrive damaged or defective.
Items bought in-store or collected can be returned directly at the garden centre. If you would like us to collect a return and it is in good condition (e.g. you have changed your mind), it must be in its original condition, and the same delivery cost will apply for the return.
Plants marked as reduced for end-of-season clearance are non-refundable, as they are sold specifically to clear stock. This does not apply to special offers or multibuy promotions, which are eligible for returns as per our standard terms.
Questions about delivery or returns? Email [email protected] or call +44 (0) 20 7284 4999.
| Located in Kentish Town, London, Boma garden centre is proud of its vision to transform the city into an urban paradise. The garden centre has created a plant lover's paradise, a place where you can relax, unwind and de-stress among the foliage and flowers. The Webshop makes it easier to order online if you can't get to the garden centre, with nationwide delivery. But we encourage plant lovers to pop in for a visit and chat with the team. |
Creating an urban paradise
Our dream is to transform urban living into a plant lovers' paradise. Making our neighbourhoods a wonderful place is good for our wellbeing and more friendly to the environment. A shared vision that gets us out of bed in the morning.
We've curated a botanical sanctuary
Our team of horticulturists planned our garden centre to show plants in their natural habitat, with inspirational displays. Looking for plants is like taking a walk in a botanical sanctuary.
And for those that consider our canine friends an essential part of life, bring your best mate along. Hopefully, they'll get along with our house cat Blue Bell.
It so happens we stock some fabulous plants
Our garden centre specialises in rare specimen plants beyond the common garden varieties. We also stock everything you need to cultivate your dream garden, home and office, with the largest range of plants, pots and containers in North London. Apparently, visitors consider us The gardener's garden centre.
| Located in Kentish Town, London, Boma garden centre is proud of its vision to transform the city into an urban paradise. The garden centre has created a plant lover's paradise, a place where you can relax, unwind and de-stress among the foliage and flowers. The Webshop makes it easier to order online if you can't get to the garden centre, with nationwide delivery. But we encourage plant lovers to pop in for a visit and chat with the team. |
Creating an urban paradise
Our dream is to transform urban living into a plant lovers' paradise. Making our neighbourhoods a wonderful place is good for our wellbeing and more friendly to the environment. A shared vision that gets us out of bed in the morning.
We've curated a botanical sanctuary
Our team of horticulturists planned our garden centre to show plants in their natural habitat, with inspirational displays. Looking for plants is like taking a walk in a botanical sanctuary.
And for those that consider our canine friends an essential part of life, bring your best mate along. Hopefully, they'll get along with our house cat Blue Bell.
It so happens we stock some fabulous plants
Our garden centre specialises in rare specimen plants beyond the common garden varieties. We also stock everything you need to cultivate your dream garden, home and office, with the largest range of plants, pots and containers in North London. Apparently, visitors consider us The gardener's garden centre.
Recommended by Customers
Buy Phormium cookianum 'Platt's Black' (3L) New Zealand Flax at The Boma Garden Centre in Kentish Town, London. Visit our garden centre in London and check our wide range of plants & gardening products. We also offer many other Boma products in our webshop. We look forward to seeing you soon!