Growing guide · Home growing: windowsill, balcony and terrace
Highbush blueberry in a container
Vaccinium corymbosum
Highbush blueberries suit containers if the growing medium is acidic. Two different varieties improve the crop.
Key figures
| Item | Value | Source |
|---|---|---|
| pH | 4.5–5.5 (RHS); below 5.5, no liming (Martat); 4.8–5.2 (Illinois) | [1][2][3] |
| Pot size | at least 30 cm diameter for a young plant, 45–50 cm for a larger one | [1] |
| Watering | rainwater; tap water is usually alkaline and raises the pH | [1] |
| Fertilising | in pots every 2–3 weeks in the growing season; avoid overfeeding | [1] |
| Harvest | often only five years after planting; berries ripen in August | [2] |
The full guide (care, pests, beginner and professional tips) is currently in Finnish. The figures above are the same and come from the sources below.
These are general guidelines. Always check the variety, seed packet or fertiliser instructions and current regulations.