Shipping cost
Enter your full postcode to check delivery to your area.
Quick Guide
- Dramatic jet-black foliage year-round
- Small pale flowers in early summer
- Easy-growing, very hardy groundcover
- Perfect for edging, borders, containers
- RHS Award of Garden Merit winner
This striking mondo grass displays dense tufts of dramatically dark, strap-shaped leaves that emerge purplish-green before deepening to near-jet black in full sun. Small pale pinkish-white flowers appear in early to midsummer on dark stems, followed by glossy dark berries in autumn. Forms a compact, slowly expanding groundcover reaching 15–20cm tall with a mature spread of 25–30cm, ideal for edging, rock gardens, container displays, and underplanting beneath trees and shrubs. Best in moist, well-drained, slightly acidic, fertile, humus-rich soil. Thrives in full sun to partial shade, with darker foliage colour intensifying in stronger light. Entirely pest-free with no serious diseases, making it a trouble-free choice for any garden.
Plant Guide
Plant in spring in moist, well-drained soil that is slightly acidic, fertile and humus-rich. Tolerates clay, loam and sandy soils. Position in full sun in northern regions for the darkest foliage, or partial shade in warmer areas. Evergreen foliage remains attractive year-round. Slow to establish but very reliable once growing. No serious pests, diseases or maintenance required once established. Hardy throughout most UK gardens.
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EAN code012815
- Ultimate Height15-20cm
- Ultimate Spread25-30cm
- Flower ColourPinkish White
- Foliage ColourBlack-Purple
- ScentNone
- SunlightFull Sun or Partial Shade
- UK Hardiness ZoneH5
- Care GuideEasy
- Planting SeasonSpring
- Season of InterestYear-round
- Growth RateSlow
- Drought TolerantNo
- Award of Garden MeritYes
- Pet FriendlyYes
- Child FriendlyYes
- Soil TypeLoam, Humus Rich, Moist but not waterlogged
- Soil PHAcid
- Pot Diameter cm14
- Approximate Height10-15cm
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.
Third-Party Couriers
For London postcodes outside a 5-mile radius of our Kentish Town garden centre, we may occasionally use a third-party courier for delivery. In these cases, we try our best to still deliver the items in the requested delivery time slot but please be aware that occasionally this may not always be possible and is out of our control.
Delivery Discrepancies
Please check your order as soon as it arrives. If there is any discrepancy — such as a missing, incorrect, or damaged item — please contact us within 48 hours of delivery so we can put things right. After this time, we will assume the order was received complete and in good condition. We are unable to take responsibility for damage that has occurred after this period.
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.
Recommended by Customers
Buy Ophiopogon planiscapus 'Nigrescens' (Pot Size 14cm) Black Mondo Grass 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 products in our webshop. We look forward to seeing you soon!