Buttonwood Bonsai Care

Buttonwood bonsai care includes lots of sun and water.

Tropical hobbyists grow their Conocarpus in as much sun as each yard allows.

Vigorous growth begins in spring and continues through mid-summer.

This plant likes water, however, when planted in heavy soil, fungus and/or root rot can become a problem.

Coarse, fast draining soil is always best.

Safeguard all your tropical bonsai from frosts. 

buttonwood bonsai care, buttonwood bonsai, conocarpus

It may not kill them, but it will burn the leaves and you may have some residual damage such and dead branches.

If you have small bonsai, bring them indoors when cold nights even threaten.

Otherwise, place them under cover for protection.

Even a cool night of 50 F can cause a buttonwood bonsai to wilt, although it rarely causes damage. 



Photo by B. Hulnick

Root Pruning and Repotting

I consider root pruning and the timing of it, one of the most important parts of buttonwood bonsai care notes.

Leaf Reduction

In the tropics Conocarpus can be defoliated two or three times a year with no problem. In other climates, there have been reports of dieback from complete defoliation.

Over time, full sun, root restriction and regular pruning will also reduce leaf size.

Lots of twigging encourages smaller leaves, so prune frequently.


Conocarpus roots are often brittle at the point they connect to the trunk - and can break away easily. It is not unusual for a collected specimen to have very few primary roots (sometimes only one!).

Nevertheless, there is often what looks like lots of root ramification. This can be a deceiving situation. Never ‘comb out’ buttonwood roots!

Lightly hose off the old soil first ... to determine what’s really going on.


Timing is very important. The best time to repot and/or root prune this plant is during the season of warmest nights. But, don’t wait too long. Allow the tree recovery time.

For example, in South Florida it's better to root prune this tree during May, June or July, not late August. The tree then has time to re-establish new roots before an early (although improbable) cool spell.

In more tropical climates (e.g. the Caribbean) timing the root pruning is not such a problem.

Outside of those tropical regions, timing is a serious consideration.


Buttonwood Bonsai Care
During Tropical Dormancy

During the winter months Conocarpus erectus has a natural “dormancy” period.

As with many tropicals, this dormancy is not necessarily one with fallen leaves. However, the leaves can become unattractive during this interval.

This is not the time to try to make it look better.

While the tree is resting, additional branches are forming. These buds will explode into the new growth of spring. This new growth causes old leaves to drop; it is a natural process.

Another ‘slow down’ period for your buttonwood is in the heat of summer.  Again, it may not look 100%, but don’t encourage any special buttonwood bonsai care to make it better, let it rest.

Pests and Diseases

As with any dead wood, watch for borers and termites. “Sawdust” may be the first sign.

Old trees frequently have heavily textured bark ... good hiding places for damaging bugs.

A wire brush is ideal for both the dead wood and cleaning the bark of buttonwood. At first, it may seem you are removing too much bark, probably not. You may be pleasantly surprised at the new color and texture exposed from the brushing.

buttonwood bonsai care, buttonwood bonsai, bonsai  picture

Two pests which can be more annoying than harmful are the leaf-cutting bee and the citrus root weevil.

(Citrus root weevils are often called “greenies” because of their pastel green color.)

Damage from both of these critters appears in the form of chewed leaves.

Moving your bonsai may be all that's needed to discourage the bee.

Removing the difficult-to-see, pastel green beetle by hand will best take care of him. Neither of these pests arrives en masse.

If you have mites, aphids or mealy bugs, the tree most likely needs more sun and/or better air circulation.

Also, make sure your buttonwood bonsai care includes fertilizing on a regular basis. A healthy tree has fewer problems.

The leaves are particularly sensitive to chemicals … never use Malathion on this plant. If necessary, consider using a spray with a pyrethrin or a soap based product. (Even then, test spray one area first.)

Buttonwood shown above (with seed clusters) is growing in the rocks on Biscayne Bay.


Conocarpus e. Driftwood

The natural jin and shari of Conocarpus erectus trees are very desirable as a driftwood bonsai.

buttonwood bonsai care, driftwood, bonsai care, conocarpus bonsai


Conocarpus driftwood is very hard (at one time used for buttons).

The features can be enhanced by hard brushing and hand carving.

They can even be created with power tools.

It is difficult to replicate the inherent beauty of driftwood, but it can be done.

Practice on throw-away pieces of wood first.


Dead Wood Maintenance

Dead wood on any bonsai requires maintenance.

Buttonwood bonsai care is no exception.

To prevent rot, brush it, keep it clean and treat with lime sulfur. (When possible, use lime sulfur outdoors; the smell resembles rotten eggs.)

Lime sulfur is available from most bonsai dealers. To see instructions for applying, go to the National Arboretum page on applying lime sulfur.

Outside of the Tropics?
Indoors?


Buttonwood bonsai care indoors can be a little tricky. When grown in low light (not its favorite location) buttonwood is highly susceptible to scale insects, mealybugs, mites, etiolation (lengthening of space on stems between leaves) and large leaves.

Rather than fight these problems continually, move the tree into high artificial light. Metal halide lights may be the most successful light for indoor buttonwood bonsai care.

Water with warmish water. Water straight from the tap in winter, may be too cold.

Another helpful tip for other than tropical environments is:

      Use a propagation mat to keep the buttonwood’s feet warm.

Where to Go From Here

Leave this Buttonwood bonsai care page and see the introductory Buttonwood page

More About Driftwood Bonsai




.


Bonsai Banter

is my free monthly newsletter. Subscribe to get current tips, ideas and photos that may not appear on this site.

Enter Your E-mail Address
Enter Your First Name (optional)
Then

Don't worry — your e-mail address is totally secure.
I promise to use it only to send you Bonsai Banter.

Read Bonsai Banter Back Issues





Popular Pages

Indoor Bloomer?

Greenhouse 4 U ?



What Visitors are Saying about BonsaiMary

So glad to know you're a real person!
. . . Bob C

I knew you would know. Perfect!
. . . Carol S

Mary, thank you so much for your quick response and info. You are terrific!
. . . B

Finding your website was like finding that needle in a haystack! I truly enjoy your straightforward information on all the topics you write about.
. . . Kristian M

People like you solidify novices like me and our desire to continue in creating Bonsai.
. . . Brian P




SBI!