Today Open: 09:00 to 18:00

Dahlia 'Mister Optimist' (Pot Size 3L)

Shipping cost

Enter your full postcode to check delivery to your area.

Quick Guide

• Large, bicolour blooms

• Continuous blooming

• Great for borders

• Ideal for cut flowers

• Attracts pollinators

Dahlia ‘Mister Optimist’ is a striking perennial that brings vibrant colour to your garden with its large, fully double flowers. The blooms feature a beautiful combination of rosy-red petals tipped with golden yellow, creating a cheerful and eye-catching display. This dahlia is perfect for adding a splash of colour to garden borders or containers, where its showy flowers can be fully appreciated.

‘Mister Optimist’ blooms continuously from midsummer until the first frost, providing months of vibrant colour. It grows up to 90 cm in height, making it suitable for the back of sunny borders or as a standout feature in mixed flower beds. The sturdy stems and long vase life make it an excellent choice for cut flowers, adding a touch of elegance to indoor arrangements. Pair ‘Mister Optimist’ with plants like Cosmos, Zinnias, and Marigolds to create a dynamic, pollinator-friendly garden.

Plant Care Guide

Plant Dahlia ‘Mister Optimist’ in full sun and well-drained, fertile soil. Water regularly to keep the soil moist but not waterlogged. Support the tall stems with stakes to prevent wind damage. Deadhead spent flowers to encourage continuous blooming. In colder regions, lift and store the tubers over winter, or mulch heavily if left in the ground in warmer areas. Regularly monitor for pests such as aphids and slugs.

  • EAN code
    040884
  • Ultimate Height
    90cm (35.4In)
  • Ultimate Spread
    60cm (23.6In)
  • Flower Colour
    Rosy-red with yellow tips
  • Foliage Colour
    Green
  • Sunlight
    Full Sun
  • Care Guide
    Easy
  • Growth Rate
    Moderate
  • Drought Tolerant
    No
  • Pet Friendly
    Yes
  • Child Friendly
    Yes
  • Soil PH
    Neutral

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.

 

Buy Dahlia 'Mister Optimist' (Pot Size 3L) 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!