The Japanese holly in winter

How hardy is Ilex crenata?

Ilex crenata can generally cope with low temperatures. However, this only applies to older plants that have been in the same place for a long time. You have a well trained Root system and the instincts are mature too, so that the cold doesn't bother them so much.

Younger Ilex crenata must be protected from frost.

Hibernate Ilex crenata outdoors

• Choose a protected location
• Lay out the mulch cover
• do not fertilize too late
• Possibly. Put on the fleece

When planting, make sure that it is in a place that is not too drafty, as too much drafts can be very difficult for the ilex, especially in winter.

Put a mulch blanket under the plants. You can use lawn clippings, bark mulch, leaves and other garden scraps for this. The mulch cover not only protects against frost, but also prevents the soil from drying out too much.

You can also use young plants Garden fleece or protect brushwood from frost.

Do not fertilize Ilex crenata too late

Actually, you don't have to have the Japanese holly fertilize. But if you don't want to do without fertilizers entirely, you should give them additional nutrients by the end of July at the latest.

Fertilize If you later, the new shoots can no longer harden properly and freeze to death in frosty temperatures.

How to overwinter Japanese holly in a bucket

If you keep Ilex crenata in the bucket, you should always ensure winter protection. The earth freezes through much faster in the pot than outdoors.

If you have to overwinter the plants outside, place the tub on an insulating surface. Choose a place where there is little draft and where there is sufficient light. The location should also not be too humid.

Bright cellars, garages or attics are well suited for wintering.