6 differences between fir and spruce

click fraud protection
Distinguish between fir and spruce

table of contents

  • root
  • growth
  • Needles
  • bark
  • Cones
  • Botanical differences
  • frequently asked Questions

The fact that spruce and fir are conifers can be seen at first glance. They also differ from other conifers relatively easily. But it will be difficult for one another. We still have 6 differences between fir and Spruce found.

In a nutshell

  • Firs and spruces look very similar
  • the most noticeable difference are the cones
  • the difference is noticeable with the needles
  • different root system difficult to recognize
  • Beware of purchased conifers, German names can be deceiving

root

A key difference between fir and spruce is their different root systems. However, since most of them run underground, this is not obvious to many.

Different root systems
The tap roots of the fir tree reach deeper into the ground and give the conifer more stability than the shallow roots of the spruce.
fir Spruce
Taproot
- less susceptible to drought and more storm-proof
- can still find water at great depths
- is difficult to transplant even at a young age
- potted trees hardly grow when planted out
- shallow roots
- not as storm-proof and drought-resistant
- can be transplanted more easily
- With a little luck, Christmas trees can grow
Comparison of the two root systems

Note: Because they are better protected against storms and are more resistant to general global warming, fir trees are preferred today. In comparison, spruce trees also fall prey to pests more quickly.

growth

If fir and spruce grow very similarly in their youth, namely pyramidal-shaped, more and more differences later emerge on closer inspection:

Growth habit of fir and spruce
The “floor growth” of the Korean fir (Abies koreana) can be seen very clearly on the left, while the Sitka spruce (Picea sitchensis) grows much more densely.
  • Fir has horizontal branches
  • grow in floors
  • The crown of fir trees is lighter
  • Spruce aged with a thinner tip
  • grows more densely, but it is becoming increasingly thinner due to drought
  • Branches form an arch

Needles

Fir trees have rather soft, flat needles that are also blunt at the top. You are on the side branch arranged. Spruce trees have round needles that are pointed at the ends and are so hard that they sting. They grow in a spiral around the branch on a small, brown stem. Pine needles grow green directly out of the branch without stems.

Distinguishing firs and spruces - needles
The rounded pine needles (left), here on the Greek fir (Abies cephalonica), are clearly visible, while the needles of the Sitka spruce (Picea sitchensis) appear much more pointed.

Tip: An important donkey bridge when shopping: the spruce stands out, the fir tree does not.

bark

Conifers can also be distinguished by the color of the bark. Spruce species have reddish bark that turns gray-brown with age. The bark grows like scales.

Norway spruce trunk
Scaly bark on the trunk of the Norway spruce (Picea abies)

Fir trees have smoother bark that cracks late. With age it becomes lighter and lighter, up to a whitish color.

Cones

The differences between spruce and fir are also quite clear in the case of the cones. Even if they can be easily distinguished in their shape from the small round cones of larch or pine, there are enough features to recognize them exactly.

Pine cones and spruce cones
Standing pine cone (Korean fir), hanging spruce cone (right)
fir Spruce
- Cones grow upright
- Fir trees do not shed cones
- after ripening only the outer scales of the cones fall off
- The tenon spindle remains on the tree
- Spruce cones hang on the tree
- fall off after ripening and lie as whole cones under the tree
- Tenon spindles remain when animals have gnawed off the tenons
Comparison of the cones

Tip: In the case of old trees, a look at the crown or the ground under the conifer is enough to determine the species.

Botanical differences

Both conifers belong to the pine family, but are divided into different subfamilies. The Latin names are derived from this:

  • Pine family: Pinaceae
  • Subfamily firs: Abietoideae (first part of the botanical name Abies)
  • Subfamily spruce: Piceoideae (Picea)

Note: When buying a spruce or fir tree, pay close attention to the botanical name, as the German names can be deceiving. If in doubt, switch to a nursery that knows its way around better.

frequently asked Questions

Do spruce and fir trees lose their needles in winter?

Usually all conifers change their needles continuously, but imperceptibly. If a lot of needles fall from the tree in winter, either diseases, pests or poor environmental conditions are behind it. As a rule, conifers do not sprout again in the lower trunk area, that is, they are bare.

Are only spruce trees attacked by the bark beetle?

There are bark beetles for almost every tree species, which can cause lasting damage to the tree under favorable conditions. In spruce trees, the infestation is so noticeable because spruce trees were kept in monocultures for a long time.

Why is a fir tree better suited than a Christmas tree?

On the one hand, of course, because of the softer needles that do not cause any unpleasant stitches when decorating. On the other hand, the needles of fir trees stay longer on the tree after felling than the needles of spruce. If a potted Christmas tree is to be planted in the garden, however, a spruce makes more sense.

What use do conifers have in the garden?

Whether fir or spruce, there are different birds that specialize in conifers and are happy when they find some in the garden. Other animals also like to eat the cones.

Are there differences between the individual fir or spruce species?

The characteristics extend to all species and their varieties. A blue spruce may have silvery-bluish needles, but they still stick, while all types of fir, such as the well-known Nordmann fir, have soft needles.