Kiku Professionally Annealed Copper Bonsai Wire

  • $25.00
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Kiku wire is striving to produce the best copper bonsai wire available in America.  99.9% pure solid copper wire is professionally wound to the appropriate size rolls (larger than most) to help eliminate the hardening of the wire as you uncoil it.  This is less important in the smaller sizes which is why the smaller sizes have tighter coils.  Each coil is wound to a precise weight resulting in consistent rolls.
The wire is then taken to a professional metal hardener that has been heating metal for 40+ years.  He also happens to be a bonsai guy so he knows good wire.  Here the wire is heated to the appropriate temperature to make the softest copper in the states.  The wire is then pulled and carefully cooled through a proprietary process that significantly reduces the scale or black coating you find on some annealed copper wire.  This black scale can "spray" off the wire as you use it causing eye injury.  We do our best to keep this to a minimum, especially on larger sizes where spraying is much more common.  This also makes for a cleaner bonsai experience with less black on your hands after wiring.  If you are wiring a pine, you obviously don't care about this as your hands will be destroyed by the end anyway.

Each roll is inspected, re-bundled and tagged with a Kiku label and small wrap of Velcro to keep your wire together after the zip-ties and label are removed.

Cheaper annealed copper wire is readily available, but none that combine the quality, softness, cleanliness and love that we put into this wire.  We intentionally made this wire to higher standard. If you are looking for the best copper on the market, look no further than Kiku Annealed Copper Bonsai Wire!


 Copper Feet Per KG (approximate)
Wire Guage Feet Per 1/2 KG  Diameter (mm)
#22 665 .64
#20 375 .81
#18 230 1.02
#16 144 1.29
#14 93 1.63
#12 58 2.05
#10 35 2.58
#8 22 3.26
#6 15 4.11
#4 8 5.19

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Ask a Question
  • If using on a small Japanese maple outside. What guage should I get? Branches are at most 1/2 inch thick to much less.

    In general if you are wireing a deciduous tree, you use aluminum bonsai wire.  It is cheaper and will be less likely to strip the bark off of the tree.

    Size all depends on the branch that you are wireing.  If you plan to fully wire the tree, you will likely need many sizes.  Generally speaking, you use wire about 1/2 the diameter of the branch you want to bend for aluminum wire.  For copper wire you should use wire that is about 1/3 the diameter of the branch.

If you are not 100% satisfied with your purchase from Superfly Bonsai, simply visit our returns center to get started.  Items must be returned at your expense.  If you beleive that we messed up somehow please let us know and we will evaluate the situation on a case by case basis.  When a return is authorized simply send the product back in sellable condition for a full refund of the product price.

Visit our Returns Center to start a return.

We utilize several different carriers to provide accurate shipping rates. Rates are calculated by distance, weight and package dimensions. A custom shipping quote will be provided in the shipping section during checkout.

How Long Does It Take To Ship?
In most cases we ship the same or following business day.  During peak season (March - May) it could take a day or two longer, especially for orders placed after noon on Fridays.  We do our best to geat all orders out as fast as possible.

How Long Will It Take To Get Here?
If you are paying for your own shipping, the amount of days will be listed when you choose your shipping preference at checkout.  If you reached our Free Shipping Minimum, we will ship the lowest cost method.  This usually takes 1-5 business days plus our handling time of 1-2 business days.  An email will be sent when your order ships with tracking information.

Free Shipping
Superfly Bonsai currently offers Free Shipping for All Retail orders over $99.00

Plants & Tree Shipping:
We ship bonsai trees and plants from either our parnter nursery or our in house nursery depending on the tree.  We may limit when we ship trees to help limit their exposure to extreme environments.  For example we may not ship if it will cause the tree to sit in a truck over a weekend or holiday in very low temperatures or very high temps.

If we are shipping from our Harrisburg, PA location, the tree may arrive via any carrier, but usually UPS or USPS.  Time in transit will be 1-2 days in the northeast, 2-3 days in the southeast, 3-4 days in the midwest and usually 5 days for the west coast.

Trees are shipped in custom boxes made just for shipping trees.  Sometimes we wrap the pot and soil in plastic to prevent it from spilling out in transit.  Many times we use packing peanuts as they have proven to be very reliable in keeping trees safe in shipping.  If a box is noticiably damaged, please take pictures prior to opening.

Please Note:  We do not ship plants and trees to California

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