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Euonymus hamiltonianus 'Koi Boy' Tree

Spindle Trees
  • £75 (inc VAT)

Euonymus hamiltonianus 'Koi Boy' features white fruits that open to reveal contrasting bright red seeds resembling the colours of Japanese Koi Carp. Small white-cream flowers in summer and yellow leaves in autumn extend the interest provided by this very small tree.

Growing to just 2.5 metres in height and 1.5 metres spread in 20 years, Euonymus hamiltonianus 'Koi Boy' has arching branches and a bushy habit. 'Koi Boy' is hardy and can cope with all soils that are moist yet well-draining and tolerates exposure to the elements.

AKA Euonymus 'Koi Boy', Spindle Tree, Burning Bush, Spindle Tree

  • Common name: Spindle Koi Boy
  • Great for: Outstanding autumn interest
  • Height and spread in 20 years: 2.5 x 1.5 metres
  • Foliage: Deciduous green spring/summer leaves turn yellow in autumn
  • Position: Full sun or partial shade
  • Soil: Suits most soils inc. chalk. Prefers well-drained, tolerates dry

Planting Advice for Euonymus hamiltonianus 'Koi Boy'

Our pot grown Koi Boy Spindle trees can be planted at any time of year. Remove weeds and grass near the planting site, then dig a square hole as deep as the root mass and twice as wide. We recommend sprinkling root grow in the hole to aid establishment, especially if you have poor soil.

Remove the pot, gently loosen the roots and place into the planting hole. Mix 50% of the original soil with 50% high quality compost, fill in the hole and firm around gently. Make sure not to bank soil up around the collar of the tree.

For single stem forms of Euonymus, use a staking kit with the stake inserted into the ground at an angle to avoid penetrating the rootmass. Water around the base.

Aftercare Advice for Euonymus hamiltonianus 'Koi Boy'

If you’re planting Spindle trees in spring, summer or dry weather, water well and regularly for the first few months. Make sure to keep an eye on young plants and increase watering if there are periods of hot and dry weather. If you’re planting in autumn, you may only need to water a little.

Keep the area around Euonymus free of competing weeds and grass for the first couple of growing seasons.

Pruning Advice for Euonymus hamiltonianus 'Koi Boy'

Spindle trees do not require regular pruning. If you wish to tidy Euonymus up, do this during the dormant season. Focus on removing any damaged, diseased or overcrowded branches. If you require a clear trunk, remove any side shoots to help raise the crown.

Delivery Costs

*Free delivery promotion excludes mature trees, extra large kits and delivery to Highlands or Islands. Discount applies at checkout.

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Mainland UK ex. Scottish Highlands £8 for any quantity £35 for 1-4 trees From £55 for any quantity
Scottish Highlands & the Islands From £30    
Outside Mainland UK Currently we are unable to deliver outside of Mainland UK

Delivery Times

Next Day Despatch
We will always try to get your plants to you as quickly as possible.  For many of our trees and plants, if you order today we will despatch your order within 24 hours.  We are constantly adding to our range of next day plants, and we do not add a surcharge for this service. Click here to see our next day delivery plants.

Standard Delivery
We have one of the widest range of trees in the UK, and for those plants which we cannot despatch next day we will normally despatch within 4 weeks. The despatch time for different products will be confirmed when products are added to your shopping basket

We will only want to deliver your orders when they are perfect for planting! Depending on the season and how well the plants are growing, we will give our best estimates of the despatch dates for pre-orders.  These dates may vary and by species and while we will always try to deliver within these timeframes if the expected despatch does change then we will notify you by email.

Special Orders
Orders containing pleached or mature trees (trees over 2.5m in height) are delivered within 3 weeks. They require specialist delivery and are grouped geographically. Any customers ordering pleached or mature trees will be contacted and notified of their delivery date.

If your trees are required by a specific date, please let us know as soon as possible; while we can’t offer any guarantees we will always do our best to accommodate you. You can leave instructions in the notes field on the Delivery Page of the Checkout or send us an email at [email protected].

Please note that orders are shipped once all the trees in the order are ready.

Collections are by appointment only at our West Yorkshire-based nursery. If you would like to place an order for collection, please get in touch before placing your order. You will not be charged a delivery cost for a collection and any delivery cost that has been applied will be refunded.

The product table at the bottom of the page gives the forms and sizes available for this variety. Please note, photos are a guideline as all plants are unique. *Pot sizes may vary. Below are definitions of terms:

Supplied Size: Height measured from the top of the pot.

Single Stem tree: Classic tree with one trunk, pruned for a beautiful, natural shape.

Top grafted tree: A height next to this form refers to the length of clear stem, which will not grow taller. Only the head of branches will develop. Ideal for small spaces.

Feathered tree: Branches from the bottom of the trunk all the way up. These branches can be removed if a clear stem is required.

Multi Stem tree: Two or more stems arising from or near ground level, growing from one root system.

Bush: A plant with many stems low down, rather than one clear stem.

Clump: Several plants in one pot that give the appearance of a bushy multi stem tree.

Climber: Naturally climbing plant. Usually delivered running up a cane, ready to position in the garden.

Standard Tree: A more mature tree with an upright clear stem of approximately 1.8m-2.0m (measured from the soil to the lowest branches of the crown). Standards are available in different forms relating to their girth size (circumference of the stem measured 1m above soil level), not height.


Plant Specification Form Supplied Size Root type Price Quantity Qty
Euonymus hamiltonianus 'Koi Boy' Form: Single Stem Tree Supplied Size: 150-200cm Root type: 12L pot* Euonymus hamiltonianus 'Koi Boy' Price £75 (inc VAT)
Single Stem Tree 150-200cm 12L pot* £75 (inc VAT)
Total: £0 (VAT Free)