Vaccinium in the garden: lingonberry, blueberry and cranberry and how to grow them

An overview of vaccinium plants for the garden and balcony, how to prepare an acid bed, watering, feeding and what to do about yellowing leaves.

In short: Vaccinium is a genus of small shrubs that includes the lingonberry, bilberry, highbush blueberry and cranberry. All of them need acid soil with a pH of 4–5.5, soft water and mulch. The highbush blueberry and the lingonberry suit the garden best; the cranberry wants moisture and the bilberry needs woodland conditions.

Genus	Vaccinium, heather family
Soil pH	4.0–5.5 (highbush blueberry 4.0–5.0)
Watering	rainwater or other soft water
Planting	April–May or September–October
Mulch	5–7 cm of pine bark or needles
Easiest species	highbush blueberry, lingonberry in a container

"Brusnice" is the Czech genus name that covers several plants from woods, peat bogs and gardens. Anyone looking for how to grow a brusnice usually means one of these: the lingonberry with red fruits, the highbush blueberry, or the cranberry from which "cranberry" juice is made. They differ in size and in their moisture needs, but they have one thing in common: in ordinary garden soil containing lime they turn yellow and die.

Here you will find an overview of the species to choose from and a procedure for preparing a bed or container for them. Detailed articles on individual species are linked in the text.

Which vaccinium species are grown

Species	Height and appearance	Fruits	For the garden
lingonberry (V. vitis-idaea)	10–30 cm, evergreen	red, tart, August–October	yes, also in a container and as ground cover
bilberry (V. myrtillus)	15–50 cm, deciduous	blue-black, July–August	with difficulty, needs woodland soil and shade
highbush blueberry (V. corymbosum)	1.5–2.5 m, deciduous shrub	large blue, July–September	yes, the highest yielding
large cranberry (V. macrocarpon)	10–20 cm, creeping, evergreen	large red, September–October	only for a permanently moist peaty bed

The small cranberry (V. oxycoccos) grows wild here on peat bogs and is protected; it is not collected for the garden. The bog bilberry grows in similar places, and its fruits are not eaten.

The lingonberry is covered in detail in the article Lingonberry – a small shrub from the mountains, the highbush blueberry in Growing highbush blueberries in the garden and the woodland bilberry in Bilberry.

Acid soil: it cannot be done without

Vaccinium plants belong to the heather family, like rhododendrons and azaleas. Their fine roots live in symbiosis with fungi that work only in an acid environment. In soil with a pH above 5.5 the plant cannot take up iron and manganese: young leaves turn yellow between green veins, the shoots become stunted and the shrub is lost within a few years.

Ordinary garden soil has a pH of around 6.5–7.5, so a special bed is prepared for vaccinium. Before planting, measure the pH with a soil test. If your soil is naturally acid and sandy, it is enough to mix it with acid peat and bark.

Preparing the bed and planting step by step

Choose a spot in sun to light partial shade. In shade vaccinium grows but hardly fruits. Do not plant it by concrete foundations and walls with mortar, which add lime to the soil.
Dig a hole or a strip 40–50 cm deep, for a highbush blueberry about 1 m wide, for a lingonberry 30–40 cm is enough.
Fill it with an acid mix: acid peat or rhododendron compost, mixed with pine bark or conifer sawdust and a little sand. On heavy clay soil it is better to make a raised bed, as a hole in clay turns into a bath of water.
Soak the plant with its root ball until bubbles stop rising. Gently loosen roots matted into the shape of the pot.
Plant at the same depth at which the plant grew in the pot. Spacing: lingonberry 30–40 cm, highbush blueberry 1–1.5 m in the row and 2 m between rows, cranberry 30 cm.
Water with rainwater and mulch with 5–7 cm of pine bark, needles or sawdust. The mulch holds moisture, suppresses weeds and gradually acidifies.

The highbush blueberry fruits better when at least two different varieties that flower at the same time grow side by side. With the lingonberry it also helps to plant several plants, ideally of two varieties.

Vaccinium in a container and on a balcony

In a container you have the pH under the easiest control. A lingonberry and a cranberry are fine in a window box or bowl of 5–10 l; a highbush blueberry needs a container of at least 30–40 l, and a mature shrub even 50 l. The container must have drainage holes but must not dry out: the roots of vaccinium are shallow and in the heat in a pot they run out of water in a day.

Fill it with acid compost for rhododendrons and azaleas; general-purpose compost has a higher pH. Water with rainwater, in summer even daily. For winter move the container against the wall of the house or wrap it, as roots in a pot freeze sooner than in the ground. More about growing fruit on a balcony is in the article Growing on a balcony.

Watering, feeding and pruning

Water

Hard tap water adds calcium with every watering and gradually raises the pH. That is why vaccinium is watered with rainwater. If you run out, use tap water that has been left to stand only occasionally and watch whether the leaves turn yellow.

Feeding

Vaccinium plants are used to poor soil, and overfeeding harms them more than hunger. Feed in spring at the start of shooting and, if needed, once more at the beginning of summer, always with a fertiliser for acid-loving plants without calcium. AG Biomin BLUEBERRIES with horn meal is suitable, and the manufacturer recommends it for lingonberries too, or Floria fertiliser for rhododendrons and azaleas. From August do not feed any more; the shoots must ripen before winter.

Pruning

Lingonberry and cranberry are hardly pruned, only dry shoots are removed. A highbush blueberry is not pruned for the first 2–3 years; after that, every year in early spring several of the oldest, spent branches are cut out at ground level so that the shrub has 6–10 younger shoots.

Why vaccinium turns yellow and does not fruit

Symptom	Cause	What to do
young leaves yellow with green veins	high pH, hard water	measure the pH, add acid peat and bark, water with rainwater
brown leaf edges, drying out	drought or overfeeding	regular watering, mulch, less fertiliser
abundant flowers, few fruits	no pollination partner, spring frost	plant a second variety, cover flowers with fleece in frost
fruits disappear before harvest	birds	net over the shrubs from the start of colouring

If you want to make an acid bed with a smaller share of peat, you will find tips in the article Can we do without peat?

Frequently asked questions

Is "brusnice" the same as a lingonberry?

Brusnice is the name of the whole genus Vaccinium. The lingonberry is one of its species, botanically Vaccinium vitis-idaea. The bilberry, the highbush blueberry and the cranberry belong to the same genus.

What pH does vaccinium need?

Between 4.0 and 5.5, for the highbush blueberry best 4.0–5.0. At a higher pH the leaves turn yellow because the plant cannot take up iron.

Can a lingonberry be grown in a pot?

Yes, it is one of the most suitable vaccinium plants for a container. 5–10 l of acid compost, watering with rainwater and a place in sun or partial shade are enough. In winter protect the container from freezing through.

Can I water vaccinium with tap water?

For a short time yes, in the long term no, if you have hard water. The calcium in it raises the soil pH and the plants start to turn yellow. Rainwater is best.

When are lingonberries harvested?

The main harvest is from the end of August to October, when the berries are fully red. Some garden varieties give a smaller crop in summer as well.

Sources

Updated: 27 September 2026

Author: Jana Vránová, the editorial name of the Pěstík.cz team. She writes about the garden, herbs and essential oils. We take safety and dosage data from specialist literature and official sources, which we cite in every article.