This year-round shrub produces a sweet yet tangy fruit. Reviewed by Barbara Gillette Pineapple guava (Acca sellowiana), also known as feijoa, is a tree or multi-stemmed shrub known for its guava ...

In fact, pruning it regularly is recommended for the shrub to have a strong structure. Pineapple guava shrubs thrive in zones 8a to 11 and so far haven't shown any signs of becoming invasive.