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Spruce Bonsai Care Guide | Repotting, Pruning, etc.

Spruce Bonsai Care Guide

This blog post is all about Spruce Bonsai Care. We’ll discuss the importance of bonsai trees, the type of spruce tree that’s most appropriate for bonsai care, and how to properly prune your spruce tree. If you’re looking for a new hobby or an interesting conversation piece, then read on!

General Information about Spruce Bonsai

Spruce Bonsai (Picea abies) trees are one of the broadest categories of bonsai trees, consisting of over 40 different species. Spruce trees grow throughout the world, and they come in a wide variety of shapes and sizes. One thing is for certain: spruce bonsai trees are relatively simple to care for and maintain.

Spruce Bonsai trees require bright sunlight, so be sure that they’re placed near windows where enough sunlight can enter the room. Spruce Bonsai trees also need water regularly as well as misting their leaves regularly. If you begin caring for your spruce bonsai tree regularly, it will reward you with years of beauty and enjoyment!

Like all bonsai trees, spruce bonsai require regular care and maintenance to stay healthy and looking their best.

Types of Spruce Bonsai

There are several types of spruce bonsai, each with their own specific care requirements. Some of the most popular types of spruce bonsai include the black spruce, the white spruce, and the Colorado blue spruce.

  • The black spruce is a small to medium-sized tree that can grow up to 50 feet tall in the wild. It has dark green needles that are about 1 inch long. The black spruce is a hardy tree and can tolerate cold temperatures and wet soil.
  • The white spruce is a medium-sized tree that can grow up to 60 feet tall in the wild. It has light green needles that are about 2 inches. The white spruce is also a hardy tree and can tolerate cold temperatures and wet soil.
  • The Colorado blue spruce is a medium-sized tree that can grow up to 60 feet tall in the wild. It has short, dark green needles that are about 1 inch long. This type of spruce bonsai will produce pine cones during the summer months for extra interest. The Colorado blue spruce is also a hardy tree and can tolerate cold temperatures and wet soil.
Spruce Bonsai Care Guide

Here are some tips on how to care for your spruce bonsai:


Spruce bonsai should be watered regularly, but be careful not to overwater them. The soil should feel damp but not wet. Watering spruce bonsai is probably the most neglected aspect of their care, but it’s actually very important (if you want your spruce bonsai to live that is).

Watering correctly will encourage healthy growth and lush foliage. Make sure your trees are watered thoroughly before beginning lengthy drying periods, which can cause any fine roots in the pot to die due to lack of water. Droughted plants look droopy for a day or so until they perk up again once re-watered. Under Watered plants may wilt or pull themselves out of shape permanently if not re-potted properly until they recover their vigor.

Always check soil moisture daily by sticking your fingers into the dirt down to about 1/2″. If you feel moisture at that level, there’s no need to water. If the soil is completely dry, thoroughly soak the potting medium until you see drainage from holes in the bottom of your bonsai pot. Let it drain completely. Then wait about a half hour before re-checking soil moisture with your fingers.


Fertilize your spruce bonsai with a balanced fertilizer once or twice a month.

There are a few things you need to know about fertilizing spruce bonsais. The first is that you should use a balanced fertilizer. This means that the fertilizer has equal amounts of nitrogen, phosphorus, and potassium. You can find balanced fertilizers at most garden stores.

You should also be careful not to over-fertilize your tree. Over-fertilizing can cause the tree to grow too fast, which can lead to problems such as weak branches and roots. It’s best to fertilize your tree once a month, using about half the recommended amount on the fertilizer package.

Finally, you should use a water-soluble fertilizer. This type of fertilizer dissolves in water, which makes it easy to apply. You can either mix the fertilizer with water and pour it over the tree’s roots, or you can spray it on the leaves.

Spruce Bonsai Care Guide


Prune your spruce bonsai regularly to keep it in shape. Be careful not to cut off too many branches, as spruce trees can grow back slowly.

Bearing in mind that you want to keep one branch per inch of trunk height gives you an idea about how thick the canopy should be at its widest point (measured around the base of the trunk) and how far apart to space branches on lower sections of the trunk.

Admittedly, pruning for style is not as straightforward as it is with bonsai such as maple or juniper, which can be shaped dramatically by wiring and bending. Spruce generally require less shaping than other kinds of bonsai trees because they grow straighter and taller (and thus more upright) without regular pruning; however, some spruce foliage needs thinning out to improve their natural shape.

Young Needles: Prune if over 50 percent of needle length exceeds 1 inch (2.5 centimeters). Fold all needles down flat against the branch if over 30 percent of needles are browning (not); also fold those that point inward on the inside of the branch.

Mature Needles: Do not prune unless over 50 percent of needle length exceeds 2 inches (5 centimeters). Leave at least two-thirds of the green needles on the branch.


Repot your spruce bonsai every two to three years, using a soil mix specifically designed for bonsai trees.

When repotting, always use a pot that is one size larger than the current pot. Be sure to use a pot with a drainage hole, and line the bottom of the pot with a layer of pebbles or stones to improve drainage.

Remove the tree from its pot and gently loosen the soil around the roots. If the roots are tightly bound, use a chopstick or other sharp object to loosen them. Place the tree in the new pot and fill in around the roots with fresh soil. Tamp the soil down gently, but do not pack it too tightly. Water the tree well and allow it to soak in the new pot for a few hours.

Insects and diseases

If your spruce bonsai is infected with insects or diseases, treat it with an appropriate insecticide or fungicide.

The best way to deal with these pests is to identify them early and treat them with an appropriate insecticide or fungicide. Many of these products are available at garden centers. Be sure to read the label carefully and follow the instructions for use.

It is also important to keep the tree healthy by watering it properly and fertilizing it regularly. A healthy tree is more resistant to pests and diseases. With proper care, your spruce bonsai will stay healthy and look beautiful for many years.

Spruce Bonsai Care Guide

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