Fruit (deciduous shrub)
Blueberry
Vaccinium corymbosum
Demands genuinely acidic soil to take up nutrients at all — more plants fail from ordinary garden soil pH than from any pest or disease.
| Light | Full sun |
|---|---|
| Water | Consistent; shallow, fibrous roots dry out quickly |
| Spacing | 1.2-1.8 m |
| Zones | Zones 3-9 depending on type (highbush vs southern highbush) |
| Harvest | 2-3 years to first real crop; fruit ripens over several weeks in summer |
| Difficulty | Moderate |
Soil pH is non-negotiable
Blueberries need soil pH around 4.5-5.5, well below most garden beds. Planted straight into neutral soil, they yellow and stall regardless of feeding because they can't take up iron and other nutrients at that pH. Amend with sulfur or grow in a dedicated acidic bed or large container of ericaceous mix.
Plant more than one variety
Most highbush blueberries are partially self-fertile but produce significantly larger, more numerous berries with a second, compatible variety nearby for cross-pollination.
Mulch heavily
A thick layer of pine bark or needle mulch keeps the shallow root zone cool and moist and slowly reinforces the acidic soil the plant needs.
More plant profiles
- TomatoThe most-grown vegetable in home gardens, and the one most improved by consistent water and a cage or stake set at planting time.
- LettuceA fast, forgiving crop that bolts to seed in heat, so timing and shade matter more than soil fertility.
- BasilThe most temperature-sensitive common herb — it sulks below 10°C and needs regular pinching to stay leafy rather than flowering.