Boxwood in a Pot: Watering, Brown Leaves and Winter Care

Water a boxwood in a pot as soon as the top two to three centimetres of soil feel dry: usually once or twice a week in summer and much less in winter. Choose a pot with a drainage hole, because soggy soil is the most common reason boxwood turns brown.

How often should you water boxwood in a pot?

A boxwood in a pot has less soil to draw from than one in the open ground, so it dries out faster. Push a finger a few centimetres into the soil. If it feels dry, water. If it feels damp, wait another day or two. Water once, thoroughly, until it runs out of the bottom, rather than giving a small splash every day.

The material of the pot matters too. Terracotta and pottery are porous: they breathe and moisture evaporates faster. A plastic pot holds moisture longer. So a boxwood in a mosaic pot with a pottery core needs water a little sooner on warm days than one in plastic.

• Summer and warm weather: check every two to three days whether the soil feels dry.
• Spring and autumn: once a week is usually enough.
• Winter: only water on frost-free days and when the soil is really dry.
• Rain counts, but under an overhang or against a wall the pot often stays dry.

Why does boxwood in a pot turn brown or yellow?

Brown or yellow leaves usually have one of three causes: too much water, too little water or a cold, dry wind in winter. Start by looking at the pot. If it stands in a saucer of water, the roots rot and the plant discolours from the inside out. Empty the saucer and keep the hole at the bottom clear. Read why a pot with or without a drainage hole makes such a difference.

If the boxwood turns dry and brittle instead, it got too little water or stands in too much wind. Feeding plays a part as well: in a pot the nutrients run out after a season. In spring, give a slow release fertiliser for evergreens. If you also see bare patches, white threads or small caterpillars, there may be a disease or pest. Have it assessed at a garden centre before you write off the whole plant.

Which pot and which size suit boxwood?

As a rule of thumb, pick a pot with a diameter of roughly half to two thirds of the height of the shrub, plus some room to grow. A boxwood ball 40 cm tall sits well in a pot of 35 to 40 cm in diameter. For a ball of 60 cm you quickly end up at 45 to 50 cm. A pot that is too small dries out fast, and one that is too large keeps the soil wet for too long.

Boxwood often stands beside an entrance or front door, and then looks count too. A colourful mosaic pot turns a plain green ball into a feature. You can read more about placement in our guide to the right pot for an entrance or driveway. Every piece from Masr Potten & Vazen is handmade and no two are identical, so a few pots side by side each get their own character.

Want two matching pots left and right of the door? Ask about custom work. Colour, model and size can be adapted, and a company logo can be worked into the mosaic too. That is handy for offices, hospitality and practices. A no-obligation quote gives you a proposal within two working days via the quote page.

Can boxwood in a pot stay outside in winter?

Yes, boxwood is hardy and stays outdoors all year. In a pot the root ball is more exposed to the cold than in the ground, so in hard frost move the pot against the wall or put it on pot feet. For year round outdoor use, always check that the pot itself is frost resistant: not all terracotta is. Choose a frost resistant pot with a drainage hole. There is more in our article on frost resistant pots outdoors.

For current weather data and frost periods, see the KNMI. In winter only water on frost-free days, and keep the soil moist but never wet. A dry winter wind or strong sun on frozen soil can turn the leaves brown even on a healthy plant. In a long frost you can loosely wrap the plant in garden fleece.

Which plants go well with boxwood in a pot?

Boxwood is a calm, evergreen base. Want more variety? Combine it with plants that like the same spot and the same watering. Have a look at the overview of hardy plants for pots for ideas. Think of low heather in autumn, pansies in spring or ornamental grasses in summer. Put the boxwood in the middle and the other plants around it.

Prefer a single plant? That works too. One ball in a striking pot looks calm, and suits a modern facade as well as a traditional house. Browse our collection of handmade pots for colours and shapes.